Among below experiments I, II, III and IV; experiments that yield same average result should be determined. Concept introduction: Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature. Below mentioned are some of the essential features of a well-designed experiment. 1. Experiment should be designed in such a way that it can be repeated to have same results. 2. Such variables should be used in experiments that can be easily controlled and manipulated directly or indirectly by the performer. 3. Atleast two relatable variables should be present in experiment.

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Answer 1

Question

Chapter 1, Problem 1.59P

a)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that yield same average result should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Below mentioned are some of the essential features of a well-designed experiment.

1. Experiment should be designed in such a way that it can be repeated to have same results.

2. Such variables should be used in experiments that can be easily controlled and manipulated directly or indirectly by the performer.

3. Atleast two relatable variables should be present in experiment.

b)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that displayhigh precision should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The closeness of measurements with each other is termed as precision. It determines the extent to which measurements are close to each other.

c)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that display high accuracy should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The extent to which calculated or measured values are close to standard one is called accuracy.

d)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that show systematic error should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Errors in any measurement can be either random or systematic. These are mentioned below.

1. Systematic errors: Such errors arise due to faulty experimental set or equipment.

2. Random errors: These occur due to precision of the instruments.

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A researcher would like to determine whether there is any relationship between students’ grades and where they choose to sit in the classroom. Specifically, the researcher suspects that the better students choose to sit in the front of the room. To test this hypothesis, the researcher asks her colleagues to help identify a sample of n = 100 students who all sit in the front row in at least one class. At the end of the semester, the grades are obtained for these students and the average grade point average is M = 3.25. For the same semester, the average grade point average for the entire college is μ = 2.95 with σ = 1.10. Use a two-tailed test with α = .01 to determine whether students who sit in the front of the classroom have significantly different grade point averages than other students.NOTICE that you are asked to use α = .01! A) sig., p<.01 B) N.S. ("not significant"), p>.01 C) sig., p>.01 D) N.S., p<.01

Two students were tasked to weigh 100 mg of sodium chloride (NaCI). Student A pressed the tare button after weighing the weighing paper and obtained the following data. What is the mass (g) of NaCl from Student A? Mass of weighing paper (g) 0.0011 Mass of weighing paper + NaCl (g) 0.1050 Mass of the NaCI (g) Your answer While Student B did not press the tare button after weighing the weighing paper and obtained the following data. What is the mass (g) of NaCl from Student B? * Mass of weighing paper (g) 0.0011 Mass of weighing paper + NaCI (g) 0.1010 Mass of the NaCI (g) Your answer

A student determined in a set of four experiments that the density of magnesium metal was 1.66 g/ml,1.65 g/ml, 1.67 g/ml, 1.67 g/ml. The accepted value for its density is 1.72 g/ml. What can you concludeabout the precision and accuracy of the student’s data?

Answer 2

Question

Chapter 1, Problem 1.59P

a)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that yield same average result should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Below mentioned are some of the essential features of a well-designed experiment.

1. Experiment should be designed in such a way that it can be repeated to have same results.

2. Such variables should be used in experiments that can be easily controlled and manipulated directly or indirectly by the performer.

3. Atleast two relatable variables should be present in experiment.

b)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that displayhigh precision should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The closeness of measurements with each other is termed as precision. It determines the extent to which measurements are close to each other.

c)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that display high accuracy should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The extent to which calculated or measured values are close to standard one is called accuracy.

d)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that show systematic error should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Errors in any measurement can be either random or systematic. These are mentioned below.

1. Systematic errors: Such errors arise due to faulty experimental set or equipment.

2. Random errors: These occur due to precision of the instruments.

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Answer 3

Question

Chapter 1, Problem 1.59P

a)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that yield same average result should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Below mentioned are some of the essential features of a well-designed experiment.

1. Experiment should be designed in such a way that it can be repeated to have same results.

2. Such variables should be used in experiments that can be easily controlled and manipulated directly or indirectly by the performer.

3. Atleast two relatable variables should be present in experiment.

b)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that displayhigh precision should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The closeness of measurements with each other is termed as precision. It determines the extent to which measurements are close to each other.

c)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that display high accuracy should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The extent to which calculated or measured values are close to standard one is called accuracy.

d)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that show systematic error should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Errors in any measurement can be either random or systematic. These are mentioned below.

1. Systematic errors: Such errors arise due to faulty experimental set or equipment.

2. Random errors: These occur due to precision of the instruments.

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Answer 4

Question

Chapter 1, Problem 1.59P

a)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that yield same average result should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Below mentioned are some of the essential features of a well-designed experiment.

1. Experiment should be designed in such a way that it can be repeated to have same results.

2. Such variables should be used in experiments that can be easily controlled and manipulated directly or indirectly by the performer.

3. Atleast two relatable variables should be present in experiment.

b)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that displayhigh precision should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The closeness of measurements with each other is termed as precision. It determines the extent to which measurements are close to each other.

c)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that display high accuracy should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The extent to which calculated or measured values are close to standard one is called accuracy.

d)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that show systematic error should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Errors in any measurement can be either random or systematic. These are mentioned below.

1. Systematic errors: Such errors arise due to faulty experimental set or equipment.

2. Random errors: These occur due to precision of the instruments.

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Answer 5

Chapter 1, Problem 1.59P

a)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that yield same average result should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Below mentioned are some of the essential features of a well-designed experiment.

1. Experiment should be designed in such a way that it can be repeated to have same results.

2. Such variables should be used in experiments that can be easily controlled and manipulated directly or indirectly by the performer.

3. Atleast two relatable variables should be present in experiment.

b)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that displayhigh precision should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The closeness of measurements with each other is termed as precision. It determines the extent to which measurements are close to each other.

c)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that display high accuracy should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The extent to which calculated or measured values are close to standard one is called accuracy.

d)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that show systematic error should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Errors in any measurement can be either random or systematic. These are mentioned below.

1. Systematic errors: Such errors arise due to faulty experimental set or equipment.

2. Random errors: These occur due to precision of the instruments.

Answer 6

Chapter 1, Problem 1.59P

a)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that yield same average result should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Below mentioned are some of the essential features of a well-designed experiment.

1. Experiment should be designed in such a way that it can be repeated to have same results.

2. Such variables should be used in experiments that can be easily controlled and manipulated directly or indirectly by the performer.

3. Atleast two relatable variables should be present in experiment.

Answer 7

Chapter 1, Problem 1.59P

a)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that yield same average result should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Below mentioned are some of the essential features of a well-designed experiment.

1. Experiment should be designed in such a way that it can be repeated to have same results.

2. Such variables should be used in experiments that can be easily controlled and manipulated directly or indirectly by the performer.

3. Atleast two relatable variables should be present in experiment.

Answer 8

b)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that displayhigh precision should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The closeness of measurements with each other is termed as precision. It determines the extent to which measurements are close to each other.

Answer 9

b)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that displayhigh precision should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The closeness of measurements with each other is termed as precision. It determines the extent to which measurements are close to each other.

Answer 10

c)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that display high accuracy should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The extent to which calculated or measured values are close to standard one is called accuracy.

Answer 11

c)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that display high accuracy should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

The extent to which calculated or measured values are close to standard one is called accuracy.

Answer 12

d)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that show systematic error should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Errors in any measurement can be either random or systematic. These are mentioned below.

1. Systematic errors: Such errors arise due to faulty experimental set or equipment.

2. Random errors: These occur due to precision of the instruments.

Answer 13

d)

Interpretation Introduction

Interpretation: Among below experiments I, II, III and IV; experiments that show systematic error should be determined.

Concept introduction:Any test, trial or tentative procedure that is executed under highly controlled conditions whose purpose is to examine validity of any hypothesis is called an experiment. These are also performed so as to discover unknown things in nature.

Errors in any measurement can be either random or systematic. These are mentioned below.

1. Systematic errors: Such errors arise due to faulty experimental set or equipment.

2. Random errors: These occur due to precision of the instruments.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 1 - Scenes A-D represent atomic-scale views of...Ch. 1 - Describe solids, liquids, and gases in terms of...Ch. 1 - Define physical property and chemical property....Ch. 1 - Define physical change and chemical change. State...Ch. 1 - Which of the following is a chemical change?...Ch. 1 - Which of the following changes can be reversed by...Ch. 1 - For each pair, which has higher potential energy?...Ch. 1 - Prob. 1.8P Ch. 1 - How ait the key elements of scientific thinking...Ch. 1 - Prob. 1.10P

Solution Summary: The author enumerates the essential features of a well-designed experiment.

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