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STEP 3 You are then given 4 additional solutions. Each of them contain chemicals dissolved in water. The chemical formula for the chemical in each solution is listed. (See the Chapter 2 PowerPoint for an explanation of chemical formulas.) You add Dye X to each bottle, and observe what happens. Dye X Solution A: HCI Solution B: NaOH Solution C: Ca(OH)2 Solution D: H,SO, Carefully study the chemical formulas for each solution. a) What do the chemicals that turned yellow have in common in their chemical formula? b) What do the chemicals that turned blue have in common in their chemical formula? c) In chemistry, what are the chemicals that turned yellow called? d) In chemistry, what are the chemicals that turned blue called?

STEP 3 You are then given 4 additional solutions. Each of them contain chemicals dissolved in water. The chemical formula for the chemical in each solution is listed. (See the Chapter 2 PowerPoint for an explanation of chemical formulas.) You add Dye X to each bottle, and observe what happens. Dye X Solution A: HCI Solution B: NaOH Solution C: Ca(OH)2 Solution D: H,SO, Carefully study the chemical formulas for each solution. a) What do the chemicals that turned yellow have in common in their chemical formula? b) What do the chemicals that turned blue have in common in their chemical formula? c) In chemistry, what are the chemicals that turned yellow called? d) In chemistry, what are the chemicals that turned blue called?

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter1: The Atom In Modern Chemistry
Section: Chapter Questions
Problem 11P
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PowerPoint File Edit View Insert Format Arrange Tools Slide Show Window Help 37% O Mon 11:48 PM Aman Getu Q AutoSave P Lab 1 Problem Solving Using The Scientific Method OFF Home Insert Draw Design Transitions Animations Slide Show Review View Tell me A Share Comments X Cut Layout v Arial 18 A Shape Fill v Сору v Reset New Slide A Design Ideas Convert to Picture Shapes Quick Styles Paste ab x X, A v Aa v Тext Arrange Shape Outline v Format Section v SmartArt Воx 1 Lab 1 Problem Solving Using the Scientific Method STEP 2 You add three drops of Dye X to the clear liquids in each bottle and observe what happens. Introduction to Biology- BIO-105 Problem Solving Using the Scientific Method Objective Biologists and other scientists continually study the world around them and identify problems that need to be solved scientific method is a process that enable scientists to systematically solve problems by making careful observation: asking questions, formulating hypotheses and devising experiments to test their hypotheses. This methodical approach ensures the rigor of scientific discovery, and is therefore important for biology students to The purpose of this lab activity is to observations, ask questions, formulate a hypothesis and predict the outcome of an experiment. a problem using the scientific method. You will mak Introduction In this lab, you will be using an indicator dye called Dye X. Dyes are chemicals that change the colors of substance will observe how the Dye X causes color changes when it is added to solutions containing various chemicals. This is an animated presentation, so make sure you are in Slide Show before beginning. Pause between slides to a the questions at the bottom of each slide. Your answers will help you reply to questions in the assignment To help you with this lab, review the PowerPoints on the Scientific Method. Some of the questions in this lal relate to material covered in Chapter 2. Refer to the Ch. 2 PowerPoint and read the relevant sections in the textbook. 3. STEP 1 shown below. Solutions I an You are given a bottle of Dye X and three bottles containing clear liquids contain chemicals dissolved in water, but you do not know what these chemicals are; this is why they a labeled "unk own". Dye X Unknown Solution I Unknown Solution II Water Which of the samples represents the control and which represents the experimental samples? Dye X Unknown Solution I Unknown Solution II Water 4 STEP 2 You add three drops of Dye X to the clear liquids in each bottle and observe what happens. After you observed what happened when Dye X was added to each liquid, what question did you ask yourself? Dye X Unknown Solution I Unknown Solution II Water After you observed what happened when Dye X was added to each liquid, what question did you ask yourself? STEP 3 You are then given 4 additional solutions. Each of them contain chemicals dissolved in water. The al formula for the chemical in each solution is listed. (See the Chapter 2 PowerPoint for an explanation of chemical formulas.) You add Dye X to each bottle, and observe what happens. Slide 4 of 6 English (United States) = Notes Comments TIZ70 11 NOV 15
Transcribed Image Text:PowerPoint File Edit View Insert Format Arrange Tools Slide Show Window Help 37% O Mon 11:48 PM Aman Getu Q AutoSave P Lab 1 Problem Solving Using The Scientific Method OFF Home Insert Draw Design Transitions Animations Slide Show Review View Tell me A Share Comments X Cut Layout v Arial 18 A Shape Fill v Сору v Reset New Slide A Design Ideas Convert to Picture Shapes Quick Styles Paste ab x X, A v Aa v Тext Arrange Shape Outline v Format Section v SmartArt Воx 1 Lab 1 Problem Solving Using the Scientific Method STEP 2 You add three drops of Dye X to the clear liquids in each bottle and observe what happens. Introduction to Biology- BIO-105 Problem Solving Using the Scientific Method Objective Biologists and other scientists continually study the world around them and identify problems that need to be solved scientific method is a process that enable scientists to systematically solve problems by making careful observation: asking questions, formulating hypotheses and devising experiments to test their hypotheses. This methodical approach ensures the rigor of scientific discovery, and is therefore important for biology students to The purpose of this lab activity is to observations, ask questions, formulate a hypothesis and predict the outcome of an experiment. a problem using the scientific method. You will mak Introduction In this lab, you will be using an indicator dye called Dye X. Dyes are chemicals that change the colors of substance will observe how the Dye X causes color changes when it is added to solutions containing various chemicals. This is an animated presentation, so make sure you are in Slide Show before beginning. Pause between slides to a the questions at the bottom of each slide. Your answers will help you reply to questions in the assignment To help you with this lab, review the PowerPoints on the Scientific Method. Some of the questions in this lal relate to material covered in Chapter 2. Refer to the Ch. 2 PowerPoint and read the relevant sections in the textbook. 3. STEP 1 shown below. Solutions I an You are given a bottle of Dye X and three bottles containing clear liquids contain chemicals dissolved in water, but you do not know what these chemicals are; this is why they a labeled "unk own". Dye X Unknown Solution I Unknown Solution II Water Which of the samples represents the control and which represents the experimental samples? Dye X Unknown Solution I Unknown Solution II Water 4 STEP 2 You add three drops of Dye X to the clear liquids in each bottle and observe what happens. After you observed what happened when Dye X was added to each liquid, what question did you ask yourself? Dye X Unknown Solution I Unknown Solution II Water After you observed what happened when Dye X was added to each liquid, what question did you ask yourself? STEP 3 You are then given 4 additional solutions. Each of them contain chemicals dissolved in water. The al formula for the chemical in each solution is listed. (See the Chapter 2 PowerPoint for an explanation of chemical formulas.) You add Dye X to each bottle, and observe what happens. Slide 4 of 6 English (United States) = Notes Comments TIZ70 11 NOV 15
PowerPoint File Edit View Insert Format Arrange Tools Slide Show Window Help 37% O Mon 11:48 PM Aman Getu Q AutoSave P Lab 1 Problem Solving Using The Scientific Method OFF Home Insert Draw Design Transitions Animations Slide Show Review View Tell me A Share Comments X Cut Layout v Arial 18 A Shape Fill v Сору v Reset A Convert to SmartArt Design Ideas Picture Shapes Quick Styles Paste New U ab x X, AV v Aa v Тext Arrange Shape Outline v Format Slide Section v Воx auueu w sUIuuuS LUILa y va ua u LaIs. This is an animated presentation, so make sure you are in Slide Show before beginning. Pause between slides to a the questions at the bottom of each slide. Your answers will help you reply to questions in the assignment To help you with this lab, review the PowerPoints on the Scientific Method. Some of the questions in this lal relate to material covered in Chapter 2. Refer to the Ch. 2 PowerPoint and read the relevant sections in the textbook. STEP 3 You are then given chemical formula for the chemical in each solution is listed. (See the Chapter 2 PowerPoint for an explanation of chemical formulas.) You add Dye X to each bottle, and observe what happens. additional solutions. Each of them contain chemicals dissolved in water. The 3 STEP 1 You are given a bottle of Dye X and three bottles containing clear liquids as shown below. Solutions I an contain chemicals dissolved in water, but you do not know what these chemicals are; this is why they a labeled "un pwn". Dye X Unknown Solution I Unknown Solution I| Water Which of the samples represents the control and which represents the experimental samples? 4 STEP 2 You add three drops of Dye X to the clear liquids in each bottle and observe what happens. Dye X Unknown Solution I Unknown Solution II Water After you observed what happened when Dye X was added to each liquid, what question did you ask yourself? STEP 3 You are then given 4 additional solutions. Each of them contain chemicals dissolved in water. The chemical formula for the chemical in each solution is listed. (See the Chapter 2 PowerPoint for an explanation of chemical formulas.) You add Dye X to each bottle, and observe what happens. Dye X Solution A: HCI Solution B: NAOH Solution C: Ca(OH)2 Solution D: H2SO4 Dye X Solution A: HCI Solution B: NaOH Salution C: Ca(OH): Solution D: H,so, Carefully study the chemical formulas for each solution. a) What do the chemicals that turned yellow have in common in their chemical formula? b) What do the chemicals that turned blue have in common in their chemical formula? c) In chemistry, what are the chemicals that tumed yellow called? d) In chemistry, what are the chemicals that turned blue called? Carefully study the chemical formulas for each solution. a) What do the chemicals that turned yellow have in common in their chemical formula? b) What do the chemicals that turned blue have in common in their chemical formula? c) In chemistry, what are the chemicals that turned yellow called? d) In chemistry, what are the chemicals that turned blue called? 6 Based on your observations and the information you have gathered, write a hypothesis that specifically explains the color change. (You may need to review the definition of a hypothesis in the Scientific Method PowerPoint.) Based on your observations and hypothesis: a) which of the Solutions A, B, C and D on Slide 4 might be the same as the Unknown Solution 1? Explain the reason for your decision. b) which of the Solutions A, B, C and D on Slide 4 might be the same as the Unknown Solution Il? Explain the reason for your decision. Based on your observations and hypothesis, predict what the outcome (color change) will be if you add Dye X to each of the following solutions. For each solution, explain the reason for your prediction. a) LIOH b) HNO, c) Cacl, Aar yt ha happeme han Dyeated haltn y an Based on your observations in this experiment, how might Dye X be used in a laboratory? Slide 5 of 6 English (United States) = Notes Comments TIZ70 11 NOV 15
Transcribed Image Text:PowerPoint File Edit View Insert Format Arrange Tools Slide Show Window Help 37% O Mon 11:48 PM Aman Getu Q AutoSave P Lab 1 Problem Solving Using The Scientific Method OFF Home Insert Draw Design Transitions Animations Slide Show Review View Tell me A Share Comments X Cut Layout v Arial 18 A Shape Fill v Сору v Reset A Convert to SmartArt Design Ideas Picture Shapes Quick Styles Paste New U ab x X, AV v Aa v Тext Arrange Shape Outline v Format Slide Section v Воx auueu w sUIuuuS LUILa y va ua u LaIs. This is an animated presentation, so make sure you are in Slide Show before beginning. Pause between slides to a the questions at the bottom of each slide. Your answers will help you reply to questions in the assignment To help you with this lab, review the PowerPoints on the Scientific Method. Some of the questions in this lal relate to material covered in Chapter 2. Refer to the Ch. 2 PowerPoint and read the relevant sections in the textbook. STEP 3 You are then given chemical formula for the chemical in each solution is listed. (See the Chapter 2 PowerPoint for an explanation of chemical formulas.) You add Dye X to each bottle, and observe what happens. additional solutions. Each of them contain chemicals dissolved in water. The 3 STEP 1 You are given a bottle of Dye X and three bottles containing clear liquids as shown below. Solutions I an contain chemicals dissolved in water, but you do not know what these chemicals are; this is why they a labeled "un pwn". Dye X Unknown Solution I Unknown Solution I| Water Which of the samples represents the control and which represents the experimental samples? 4 STEP 2 You add three drops of Dye X to the clear liquids in each bottle and observe what happens. Dye X Unknown Solution I Unknown Solution II Water After you observed what happened when Dye X was added to each liquid, what question did you ask yourself? STEP 3 You are then given 4 additional solutions. Each of them contain chemicals dissolved in water. The chemical formula for the chemical in each solution is listed. (See the Chapter 2 PowerPoint for an explanation of chemical formulas.) You add Dye X to each bottle, and observe what happens. Dye X Solution A: HCI Solution B: NAOH Solution C: Ca(OH)2 Solution D: H2SO4 Dye X Solution A: HCI Solution B: NaOH Salution C: Ca(OH): Solution D: H,so, Carefully study the chemical formulas for each solution. a) What do the chemicals that turned yellow have in common in their chemical formula? b) What do the chemicals that turned blue have in common in their chemical formula? c) In chemistry, what are the chemicals that tumed yellow called? d) In chemistry, what are the chemicals that turned blue called? Carefully study the chemical formulas for each solution. a) What do the chemicals that turned yellow have in common in their chemical formula? b) What do the chemicals that turned blue have in common in their chemical formula? c) In chemistry, what are the chemicals that turned yellow called? d) In chemistry, what are the chemicals that turned blue called? 6 Based on your observations and the information you have gathered, write a hypothesis that specifically explains the color change. (You may need to review the definition of a hypothesis in the Scientific Method PowerPoint.) Based on your observations and hypothesis: a) which of the Solutions A, B, C and D on Slide 4 might be the same as the Unknown Solution 1? Explain the reason for your decision. b) which of the Solutions A, B, C and D on Slide 4 might be the same as the Unknown Solution Il? Explain the reason for your decision. Based on your observations and hypothesis, predict what the outcome (color change) will be if you add Dye X to each of the following solutions. For each solution, explain the reason for your prediction. a) LIOH b) HNO, c) Cacl, Aar yt ha happeme han Dyeated haltn y an Based on your observations in this experiment, how might Dye X be used in a laboratory? Slide 5 of 6 English (United States) = Notes Comments TIZ70 11 NOV 15
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Follow-up Question

Carefully study the chemical formulas for each solution in Step 3 and then select the set of statements that accurately describes the results.

Note: H is hydrogen, OH is hydroxide

Select one or more:
a.

The solutions that turn yellow have H in their formula and are acids. The solutions that turn blue have OH in their formula and are bases.  

b.

The solutions that turn yellow have OH in their formula and are acids. The solutions that turn blue have H in their formula and are bases.  

c.

The solutions that turn yellow have H in their formula and are bases. The solutions that turn blue have OH in their formula and are acids.  

d.

The solutions that turn yellow have H in their formula and are bases. The solutions that turn blue have OH in their formula and are neutral.  

e.

The solutions that turn yellow have H in their formula and are neutral. The solutions that turn blue have OH in their formula and are bases.  

 
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Follow-up Question

Based on your observations and hypothesis, what do you predict will happen if Dye X is added to aqueous solutions of the following three chemicals?

LiOH                  HNO3                         CaCl₂

Select one or more:
a.

LiOH will turn blue because it has OH in its formula. HNO3 will turn yellow because it has H in its formula.  CaCl₂ will not turn yellow or blue because it does not have H or OH in its formula

b.

LiOH will turn yellow because it has H in its formula. HNO3 will turn blue because it has O and H.  CaCl₂ will turn blue because it forms a basic solution.

c.

LiOH will turn yellow because it has an H in its formula. HNO3 will turn blue because it has O and H.  CaCl₂ will not turn yellow or blue because it does not have H or OH in its formula

d.

LiOH will turn blue because it has OH in its formula. HNO3 will turn yellow because it has H.  CaCl₂ will turn blue it forms a basic solution.

e.

LiOH will turn yellow because it has an H in its formula. HNO3 will turn blue because it has O and H.  CaCl₂ will turn yellow it forms an acidic solution.

 

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