Ph Scale Remote Lab 2 Answer KeyThe pH scale is often said to range from 0 to 14, and most solutions do fall within this range, although it’s possible to get a pH below 0 or above 14. Biology (BIO 121) 38 Documents. 4) are both very close to neutral. ) This lab uses the pH Scale Basics simulation from PhET Interactive Simulations at the University of Colorado Boulder, under the CC-BY 4 license. phet ph scale answer key Phet pH Scale Basics Worksheet. Create a pH scale using an indicator 4. Over a period of six months, the fish are fed the same type and amount of food. pH is a measure of how acidic/basic water is. JMAP offers math teachers resources that simplify the integration of Regents Exam questions into their curriculum. The pH scale is centered around 7, because water contains 1 x 10-7moles of H3O+ions per liter. The pH is calculated as a negative logarithmic function of the concentration of hydrogen ions, which are acidic by nature. It is a measure of how many excess H+ ions there are in a solution. This video uses the PhET simulation "pH Scale" micro setting to explore the ratio of hydrogen (hydronium) and hydroxide ions in a number of solutions with va. The scale goes from 0 to 14. base substance that accepts a hydrogen ion neutral a ph of 7 is considered neutral. Test the pH of everyday liquids such as coffee, spit, and soap to determine whether each is acidic, basic, or neutral. It is designed to help students link chemical computations with authentic laboratory chemistry. This lab uses the pH Scale simulations from | Course Hero Douglas County High School, Minden CHEMISTRY CHEMISTRY MISC pH Scale Remote Lab 2. Acids and Bases: Acidity and Alkalinity in Everyday Substances Virtual Lab. zip pH Scale Basics Remote Lab1 pH Scale Remote Lab 2 Please DO NOT request edit access to the Google activity. P H Scale Basics Remote Lab1. Different sized aquariums are set up with six goldfish in each one. The pH scale ranges from 0 (very acidic ) through 7 ( neutral ). The pH Analysis Gizmo allows you to find. Lab 2_pH simulation report. pH Scale: Acids, bases, pH and buffers (article). 14 is the new neutral point on the pH scale at this higher temperature. pH Scale Remote Lab 2(This lesson is designedfor astudent working remotely. Expert Answer 1. It is a measure of how many excess H+ ions there are in a solution. pH Scale Basics Remote Lab1. pH 7), the number is equal to the negative exponent of the H + ion concentration. The last two pages are the answer key. Extreme pH values, either above or below 7. Lab ph scale basics remote lab (this‌‌lesson‌is designed ‌for‌‌a‌‌student‌‌working‌remotely‌. Basic end of pH scale is at what number 14 Neutral solutions are at what number 7 List 3 safety precautions that must be followed when working with acids and bases 1. pH Scale Basics Remote Lab (This lesson is designed for a student working remotely. It can be measured using a pH meter which gives a numerical value. The pH scale, from 0 to 14, is a measure of the acidity or alkalinity of a solution, and can be measured using. The degree of acidity or basicity can be measured by using the pH scale. Operating Systems 2 (proctored course) (CS 3307) Entrepreneurship 1 (Bus 3303) General Physics (PHY 317L) Comparative Programming Languages (CS 4402) Literacy and the SLP (SPH 323) Introduction To Marketing (MBAE 60603) Business Core Capstone: An Integrated Application (D083) Documents Popular Physio Ex Exercise 11 Activity 3 Aplia. These are inquiry based activities to introduce pH. What's Your pH? Lab Answer Key. 8: Acid, Bases and pH (Experiment). A solution with 1,000,000x more H3O+than water has 1 x 10-1 moles of H3O+ions per liter. Acid base solutions Remote Lesson. Phet Ph Scale Basics Answer Key. Lab 2 pH and buffers QUESTIONS What color is phenol red solution initially? Click the card to flip 👆 red Click the card to flip 👆 1 / 23 Flashcards Learn Test Match Created by riley_cullen1 Terms in this set (23) What color is phenol red solution initially? red what happens to phenol red when hydrochloric acid is added turned orange/yellow. edu/simwhtmlip-scale-basics/latest/ph-calebasics. more than one because a is water b is blood and c is battery acid which is a acid. On the pH scale, one unit of change represents a 10-fold change in the degree of acidity or basicity. 3 WebAssign; ECO 201 - Chapter 2 Thinking like an economist part 2. Explain how you can use pH to help predict what dilution does to an acid or base solution. Solved PH Scale Basics Remote Lab (This Lesson Is Designed - Chegg. zip pH Scale Basics Remote Lab1 Please DO NOT request edit access to the Google activity. For example, a two unit drop in pH is a 102 or 100 times increase in acidity. In 2020, Remote versions were added for students. colorado/sims/html/ph-scale/latest/ph-scale_en. pH Scale Basics | Remote Lab. ) This lab uses the pH Scale Basics simulation from PhET Interactive Simulations at University of Colorado Boulder, under the CC-BY 4. 4 Web Assign; BANA 2082 - Chapter 4. pH 7), the number is equal to the negative exponent of the H + ion concentration. 00 Hz Pause when dot on wheel is at the top Wavelength 1- 6. The pH values of everyday chemicals typically range from pH 0 to pH 14. 8) Acidic Basic 0 2 4 6 8 10 12 14 7 pH - Drain Cleaner (pH 13. Because of its citric acid content, orange juice is acidic, with a typical pH of around 3. pH Scale Remote Lab 2. 0, are usually considered unfavorable for life. Lab 2 pH and buffers QUESTIONS What color is phenol red solution initially? Click the card to flip 👆 red Click the card to flip 👆 1 / 23 Flashcards Learn Test Match Created by riley_cullen1 Terms in this set (23) What color is phenol red solution initially? red what happens to phenol red when hydrochloric acid is added turned orange/yellow. Remote teaching support Starters for ten Screen experiments Assessment for learning Microscale chemistry Faces of chemistry Classic chemistry experiments Nuffield practical collection Anecdotes for chemistry teachers More … Literacy in science teaching Climate change and sustainability Alchemy On this day in chemistry Global experiments. Compressing the spring 20 \mathrm {~cm} 20 cm causes the ball to hit the floor 1. Acidic substances have a pH below 7, while alkaline substances (bases) have a pH. Switch between logarithmic and linear scales. Lab 2_pH simulation report. 0 is acidic, and anything above 7. )‌ This lab uses the pH Scale simulations from PhET Interactive Simulations at University of Colorado Boulder, under the CC-BY 4. describe the buffering capacity of the solution. )This lab uses the pH Scale simulations from PhET Interactive Simulations at University of Colorado Boulder, under the CC-BY 4. pH Scale Basics Remote Lab1. Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. The pH scale runs from 0 to 14, with 0 representing the highest concentration of hydrogen ions. The higher the number, the stronger the base. Battery Acid- (Acid) It has a pH of 1. Record wavelength number 1 (0. This 2-page lab product. P H Scale Remote Lab 2 - Lab Lab University Indiana Institute of Technology Course General Chemistry II Lab (CH 1240) 15 Documents Academic year:2021/2022 Helpful? 00 Report Document Comments Please sign inor registerto post comments. pH Scale Remote Lab 2(This lesson is designedfor astudent working remotely. ChemCollective: Virtual Labs. pH Scale Basics Remote Lab (This lesson is designed for a student working remotely. Based on a comparison to the nutrient availability chart: a. Expert Answer. what is the dependent variable in the buffer experiment. explain why stomach medicines have a high pH. Learn to make careful observations 2. The pH values of everyday chemicals typically range from pH 0 to pH 14. ) This lab uses the pH Scale Basics simulation from PhET Interactive Simulations at University. Ph Scale Basics Remote Lab AnswersOn The PH Scale, A PH Of 7 Is Neutral ph scale basics remote lab answer key. Prediction and explanation with support B false because the red acid (blood) is a base and the yellow is a acid. Since the scale is based on pH values, it is logarithmic, meaning that a change of 1 pH unit corresponds to a ten-fold change in H + ^+ +. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Resources may be downloaded using the links in the left column or below. It is designed to help students link chemical computations with authentic laboratory chemistry. docx - 326 kB Download all files as a compressed. Type in to calculator, press sci, then hit enter. The “pH” is always written with a lowercase “p” and an uppercase “H”, which stands for “power of hydrogen. Investigate how adding more of a liquid or diluting with water affects pH. pH Scale Basics Remote Lab (This lesson is designed for a student working remotely. The pH scale is often said to range from 0 to 14, and most solutions do fall within this range, although it’s possible to get a pH below 0 or above 14. pH Chemistry (Acids & Bases). Measure of the acidity or alkalinity of a solution. pH Scale inquiry-based intro to acid-base. The scale is divided into three areas: Acid (readings below 7), neutral (reading of 7), and basic (readings above 7). ) This lab uses the pH Scale simulations from PhET Interactive Simulations at University of Colorado Boulder, under the CC-BY 4 license. pH Scale Remote Lab 2 (This lesson is designed for a student working remotely. Because of its citric acid content, orange juice is acidic, with a typical pH of around 3. 98X10–6M USE OF INDICATORS TO MEASURE pH. The first two contain a pH scale for students to color and label where common substances fall on the pH scale, and a lab data table for students to record their findings while testing common substances. a hoa math test – calculator q a type q a type q a type q a type 1. Investigating the pH Scale. Describe the amphoteric and self-ionization capacity of water. 00 Hz Measure wavelength 2 Set amplitude at 0. 4 The pH scale and neutralisation. The term “pH” is short for. 5 m below the point at which it leaves the spring after traveling 5. 00) and then increase the amplitude (height) and keep the frequency the same Amplitude now at 1. Milk — pasteurized, canned, or dry — is an acid-forming food. 2 Reaction of acids. Click on the H3O+/OH- ratio box located below the beaker with the substance. Click on the “My Solution” box. 8) Acidic Basic 0 2 4 6 8 10 12 14 7 pH - Drain Cleaner (pH 13. We seldom say the pH is 0, and that is why you consider pH = 0 such an odd expression. If a solution contains extra hydrogen. A solution that is basic has a pH above 7. The scale is divided into three areas: Acid (readings below 7), neutral (reading of 7), and basic (readings above 7). So for pH 7, the H + ion concentration is 10 -7 M. At 100°C, a pH value of 6. Learning goals: Determine if a solution is acidic or basic using pH; H3O+/OH- ratio (molecular size representation of just the ions in the water. Key Concepts: The pH of a solution is determined by the concentration of specific ions. This lesson uses PocketLab Notebook software to deliver lessons to students with the simulation embedded. Neutral solutions have a pH of 7. pH_Scale_Basics_Remote_Lab1__2_ (1). Need synonyms for pH scale? Here's a list of similar words from our thesaurus that you can use instead. A study is being done to test the effects of habitat space on the size of fish populations. The lab allows students to select from hundreds of standard reagents (aqueous) and manipulate them in a manner resembling a real lab. pH Scale Basics Remote Lab1. What is the pH of common solutions?. Learn to make hypotheses and design an experiment to test the hypothesis 3. Prediction and explanation with support 2. The pH scale is used to rank solutions in terms of acidity or basicity (alkalinity). Lab 1-Chemistry and Measurement-Lab Report; Global dimensions module one assignment; Gizmo Ph analysis gizmo answer key. pH Scale inquiry-based intro to acid-base. At the end of this simulation, you will be able to: Give examples of acids and bases from everyday life. Investigate whether changing the volume or diluting with water affects the pH. pH Scale Basics Remote Lab1 (1). An example of a strong base is drain cleaner or oven cleaner. The lower the number, the stronger the acid. This scale covers a very large range of [ H +], from 0. ph scale basics remote lab answer key. 00 cm, but frequency stays at 1. Ph Scale Basics Remote Lab Answer Key. Things that are acids have a pH number that is less than 7. At 100°C, a pH value of 6. The pH scale is a logarithmic scale used to measure acidity. A solution with 100x more H3O+ions than water has 1 x 10-5moles of H3O+per liter, which gives it a pH of 5. The pH scale is often said to range from 0 to 14, and most solutions do fall within this range, although it’s possible to get a pH below 0 or above 14. Learn to make careful observations 2. What is the pH scale and what does it measure?. On the pH scale, a pH of 7 is neu https://www. Its pH level is below neutral at about 6. Things that are acids have a pH number that is less than 7. If the pH of the NaOH solution is 12, the pH of the Na 3 PO 4 solution has to be less than 12. colorado/sims/html/ph-scale-basics/latest/ph-scale-basics_en. These are inquiry based activities to introduce pH. Each division either increases or decreases the pH of a substance 10 times. LAB ACTIVITY: THE UPS AND DOWNS OF PH. html Learning Goals: Students will be able to. com/science-technology/ph-scale-measure-6cafe39d96769fc5. pH Scale inquiry-based intro to acid-base. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. The pH scale is centered around 7, because water contains 1 x 10-7moles of H3O+ions per liter. Unit 4 Congruent Triangles Homework 3videos are created by. The pH scale is a number scale that indicates how acidic or basic a solution is. So for pH 7, the H + ion concentration is 10 -7 M. 1 Notes; Give Me Liberty Chapter 15 Notes; BANA 2082 - Quiz 7. )‌ this lab uses the ph scale basics simulation from phet AP Physics Workbook Answer Key questions; Ch 2 A Closer Look Differences Among the Nutrition Standard & Guidelines & When to Use Them;. Switch between logarithmic and linear scales. Pure water has a pH of 7 and is considered neutral. pdf - pH Scale Remote Lab 2 This lesson is designed for a student working remotely. Chicken soup- (acid) It has a pH of 5. In 2020, Remote versions were added for students working at home using the HTML5 sim. pH Scale Remote Lab 2. Prediction and explanation with support D. Investigate whether changing the volume or diluting with water affects the pH. It is possible for the solutions in each beaker to have the same pH. When the pH value is a whole number (e. Note about prior learning: Students should have completedpH Scale Basics Remote Lab1 or lessons with similar learning goals. A solution that is neutral has a pH of 7. This lab uses the pH Scale simulations from | Course Hero Douglas County High School, Minden CHEMISTRY CHEMISTRY MISC pH Scale Remote Lab 2. Key points The pH scale shows how acidic a substance is. In this virtual lab, you will use pH paper to determine the pH of common solutions. Explain your reasoning for your choice: The stronger a base is the higher pH. Ions are negatively or positively charged atoms. pH Scale Remote Lab 2 (This lesson is designed for a student working remotely. The color of a solution identifies if it is an acid, base, or neutral solution. Students know buffers stabilize pH in acid-base reactions. The pH inside human cells (6. Switch between logarithmic and linear. This lab uses the pH Scale simulations from |. A solution with 100x more H3O+ions than water has 1 x 10-5moles of H3O+per liter, which gives it a pH of 5. Guiding Questions: How does adding water affect the pH of acid and base solutions? What are the outer limits of the pH scale? How low and high does it go and what does this mean? My Solution Investigation. All pages are small enough to be cut down to fit into a science notebook. pH Scale Basics Remote Lab (This lesson is designed ">Solved pH Scale Basics Remote Lab (This lesson is designed. pH Scale Basics Remote Lab1. Lab 2 pH and buffers QUESTIONS Flashcards. This is because it contains lactic aci …. Type in to calculator, press sci, then hit enter. In a physics lab experiment, a compressed spring launches a 20 \mathrm {~g} 20 g metal ball at a 30^ {\circ} 30∘ angle. Determine the lowest the pH scale can go by adjusting the pH value. zip pH Scale Basics Remote Lab1 Please DO NOT request edit access to. Ph Scale Remote Lab 2 Answer Key. Students also viewed Lab 2 Elevation in Boiling point Lab 7 Empirical Formula of Compund Lechatelier - Lab. Ph Scale Basics Answer Key. ) this lab uses the ph scale basics simulation from phet interactive Skip to document Ask an Expert Sign inRegister Sign inRegister Home Ask an ExpertNew My Library Discovery Institutions Concordia University McMaster University Wilfrid Laurier University. 46 b) pOH = 14–pH = 14–4. pH of Acids and Bases The pH of a solution varies from 0 to 14. what is the independent variable in the buffer experiment. Relate liquid color to pH. The pH scale is used to classify substances as acids and bases. pH=–log [H+]=–log (3. ) Wash and tell policy pH of milk 7 pH of salt water 7 Is there a difference in H+ between salt water and tap water? No pH of coffee 7 pH of windex 9. What nutrients might be limited in farmer Alice’s field? Nitrogen, phosphorus, potassium, sulfur, calcium. If a solution contains extra hydrogen ions (H+), it is acidic. Acidic substances have a pH below 7, while alkaline substances (bases) have a pH above 7. Testing pH Lab Background A liquid may be an acid, base, or neutral. When the pH value is a whole number (e. ‪pH Scale‬ - PhET. Expert Answer 1. Students know how to use the pH scale to characterize acid and base solutions. This would be considered a weak acid. The Virtual Lab is an online simulation of a chemistry lab. 2) pH value = X [ H +] = 10 − X M. Transcribed image text: pH Scale Basics Remote Lab (This lesson. pH Scale Basics Remote Lab 2 This lab uses the pH Scale simulations from PhET Interactive Simulations at University of Colorado Boulder, under the CC-BY 4. Part 2 Further Investigations into the pH scale. A pH value is a number, usually between 0 and 14, that represents the acidity or basicity of a solution. pH scale basics simulation. zip pH Scale Basics Remote Lab1 Please DO NOT request edit access to the Google activity. Documents. Its pH level is below neutral at about 6. EXPERIMENT 11 – Acids, Bases, and pH. The pH scale measures how basic or acidic a substance is, and it ranges from 0 to 14. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Key Concepts: The pH of a solution is determined by the concentration of specific ions. The pH scale is used to classify substances as acids and bases. docx - 189 kB Download all files as a compressed. 2 cm Wavelength 2- 6. Then use pH Scale Basics to verify and add screen captures to your explanation. Acid, Bases and pH (Experiment). Test the pH of everyday liquids such as coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Key Concepts: • The pH of a solution is determined by the concentration of specific ions. Which is neither acidic nor basic because the number of hydrogen ions equals the number of base ions in a solution. Solved pH Scale Basics Remote Lab (This lesson is designed. Laboratory: Acids, Bases, and MOM!. PDF LAB ACTIVITY: THE UPS AND DOWNS OF PH. Bases have pH values higher than 7. Gizmo Warm-up The strength of an acid or base is measured on the pH scale. However, the environment inside your stomach is highly acidic, with a pH of 1 to 2. The pH scale runs from 0 to 14, with 0 representing the highest concentration of hydrogen ions. A solution that is acidic has a pH below 7. ) This lab uses the pH Scale Basics simulation from PhET Interactive Simulations at University of Colorado Boulder, under the. org">Phet Ph Scale Basics Answer Key. 8) and the pH of blood (7. How does the stomach get around this problem? The answer: disposable cells!. If the pH of the NaOH solution is 12, the pH of the Na 3 PO 4 solution has to be greater than 12. For example, the pH of 5 is ten times more acidic than a pH of 6. What is another word for "pH scale"?. ase ph scale basics remote lab (this lesson is designed for student working remotely. When [ H +] is high, we usually do not use the pH value, but simply the [ H +]. Define pH and identify acids and bases using the pH scale. Remote teaching support Starters for ten Screen experiments Assessment for learning Microscale chemistry Faces of chemistry Classic chemistry experiments Nuffield practical collection Anecdotes for chemistry teachers More … Literacy in science teaching Climate change and sustainability Alchemy On this day in chemistry Global experiments. The lab allows students to select from hundreds of standard reagents (aqueous) and manipulate them in a manner resembling a real lab. pH Scale Remote Lab 2 (This‌ ‌lesson‌ is designed ‌for‌ ‌a‌ ‌student‌ ‌working‌ remotely‌. Operating Systems 2 (proctored course) (CS 3307) Entrepreneurship 1 (Bus 3303) General Physics (PHY 317L) Comparative Programming Languages (CS 4402) Literacy and the SLP (SPH 323) Introduction To Marketing (MBAE 60603) Business Core Capstone: An Integrated Application (D083) Documents Popular Physio Ex Exercise 4 Activity 2. Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. This scale covers a very large range of [ H +], from 0. Each division either increases or decreases the pH of a substance 10 times. Acids and Bases: Cabbage Juice pH Indicator. pH Scale Basics Remote Lab (This lesson is designed for a student working remotely. pH Scale Basics Remote Lab 2 This lab uses the pH Scale simulations from PhET Interactive Simulations at University of Colorado Boulder, under the CC-BY 4. Operating Systems 2 (proctored course) (CS 3307) Entrepreneurship 1 (Bus 3303) General Physics (PHY 317L) Comparative Programming Languages (CS 4402) Literacy and the SLP (SPH 323) Introduction To Marketing (MBAE 60603) Business Core Capstone: An Integrated Application (D083) Documents Popular Physio Ex Exercise 4 Activity 2. Calculate the a) hydrogenion andb)hydroxide ion concentrations of a solution thathas apH of 8. Copy of p H Scale Basics Remote Lab1. base substance that accepts a hydrogen ion neutral a ph of 7 is considered neutral. The range of pH values is from 0 to 14. ” pH values are related to hydrogen ion ( H +) concentrations. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Students will be able to: Determine if a solution is acidic or basic using pH. Or you can design your own liquid!. Ph Scale Lab Answer Key - Myilibrary. Acids have a pH below 7 and bases have a pH above 7. Battery Acid- (Acid) It has a pH of 1. Teach your students about balancing chemical reactions using this great, detailed digital lab. The Virtual Lab is an online simulation of a chemistry lab. The Virtual Lab is an online simulation of a chemistry lab. pdf - pH Scale Remote Lab 2 This lesson is designed for a student working remotely. Predict if dilution and volume will increase, decrease or not change the pH Organize. It is possible for the solutions in each beaker to have the same pH. ) This lab uses the pH Scale Basics simulation from PhET Interactive Simulations at the. pH Scale Basics Remote Lab1. pH Scale Remote Lab 2 (This lesson is designed for a student working remotely. 2) pH value = X [ H +] = 10 − X M. The scale is divided into three areas: Acid (readings below 7), neutral (reading of 7), and basic (readings above 7). ) Wash and tell policy pH of milk 7 pH of salt water 7 Is there a difference in H+ between salt water and tap water? No pH of coffee 7 pH of windex 9. Chicken soup- (acid) It has a pH of 5. ) This lab uses the pH Scale simulations from PhET Interactive Simulations at University of. This is because it contains lactic aci … View the full answer. pH Scale Remote Lab 2 (This‌ ‌lesson‌ is designed ‌for. The scale goes from 0 to 14. The range of pH values is from 0 to 14. ph scale basics remote lab answer key. pH Scale Basics Remote Lab (This lesson is designed for a student working remotely. The pH scale is centered around 7, because water contains 1 x 10-7moles of H3O+ions per liter. Basic end of pH scale is at what number 14 Neutral solutions are at what number 7 List 3 safety precautions that must be followed when working with acids and bases 1. Question: pH Scale Basics Remote Lab (This lesson is designed for a student working remotely. Identify chemicals as acids or bases Materials Needed: •Graduated cylinder (from Lab Kit) •Pipettes or syringe (from Lab Kit) •pH paper (from Lab Kit). Ph Scale Teaching Resources. When the pH value is a whole number (e. pH Scale Remote Lab 2(This lesson is designedfor astudent working remotely. edu/sims/html/ph-scale/latest/ph-scale_en. pH Scale Remote Lab 2 (This‌ ‌lesson‌ is designed ‌for‌ ‌a‌ ‌student‌ ‌working‌ remotely‌. ) This lab uses the pH Scale simulations from PhET Interactive Simulations at. Ph Scale Teaching Resources. Virtual Labs">ChemCollective: Virtual Labs. buffer substance that minimizes a change in ph even after an acid or base is added. The pH scale is used to classify substances as acids and bases. Apply the the Bronsted-Lowry definition of acids and bases to chemical compounds. In order to create your own version of this activity, make a copy. the base helps to settle/neutralize the stomach acid. Verified answer. Visualize the relative number of hydroxide ions and hydronium ions in solution. Ph Lab Teaching Resources. More information and offline downloads. If a solution contains extra hydroxyl ions (OH-), the solution is basic, or alkaline. ) This lab uses the pH Scale Basics simulation from PhET Interactive Simulations at the University of Colorado Boulder, under the CC-BY 4 license. pdf - pH Scale Remote Lab 2 This lesson is designed for a student working remotely. Basic end of pH scale is at what number 14 Neutral solutions are at what number 7 List 3 safety precautions that must be followed when working with acids and bases 1. Note: Students should have completedpH Scale Basics Remote Lab1 BEFORE completing this activity. Investigate how adding more of a liquid or diluting with water affects pH. A pH value is a number, usually between 0 and 14, that represents the acidity or basicity of a solution. The pH inside human cells (6. Navigate to the PhET “pH scale” Simulation. • Ions are negatively or positively charged atoms. pH Scale Remote Lab 2. Practice Test Answer Keys. False Credis acid & clear is base 1. 2. Then use pH Scale Basics to verify and add screen captures to your explanation. The range goes from 0 - 14, with 7 being neutral.