Question

PLEASE ELABORATE FOR THE ANSWERS TO THE QUESTIONS

1. suppose you prepare a sugar water solution. You weigh 10.00mlo of the solution and determine the density to be 1.004g/ml. however, you then realize that you forgot to shake the mixture. In fact, you notice undissolved sugar at the bottom of the solution container. The actual density of the solution, if you had preparied it homogenously would have been:

less than 1.004g/ml

more than

equal to

none

2. suppose you determine the density of a 10ml solution to be 1.025g/ml. You would expect the density of a 5ml solution of the same solution to be:

a. .512g/ml

b. .998g/ml

c. 1.025g/ml

3. A student determines that the density of a lemonade solution is 1.031g/ml, and that of apple juice is 1.043g/ml The data indicates:

a. the apple juice is more homogenous than the lemonade

b. the student used larger samples of apple juice than lemonade

c. the student used different graphs of density versus mass percent sugar for the two samples.

d. the apple juice has a greater mass percent sugar that the lemonade

4 a student determines that the density of a diet beverage is about the same as that of pure water. this would indicate

a. the mass percent sugar in the diet beverage is around 0%

b. the artifiial sweetener and flavorings has a negligible mass

c. all of the above

5. A 12-volt automobile battery contains a solution of sulfuric acid in water. A mechanic might check the density of this solution in order to determine:

a. the mass percent sugar in the solution

b. the mass percent sulfuric acid in the solution

c. whetther the solution is homogenous.

d. the calibration of density to mass percent sugar

7. the more sugar that you dissolve in a fixed amount of water:

a. the greater the density of the resulting solution

b. the less flavoring that must be added to make fruit juice

c. the more homogenous the solution

d. the lower the calculated mass percent sugar for the resulting solution

8. if you plot solution density versus mass percent NaCl for several different salt water solutions the best straight line for the graph should:

a. pass through the origin

b. allow you to determine mass percent NaCl for any salt water solution based on the solution density

c. have a slope that will help you identify the flavoring used in the solution

d. have a y-intercept equal to the density of the most concentrated solution

PLEASE ELABORATE FOR THE ANSWERS TO THE QUESTIONS

Answer 1

Solution :-

1. suppose you prepare a sugar water solution. You weigh 10.00mlo of the solution and determine the density to be 1.004g/ml. however, you then realize that you forgot to shake the mixture. In fact, you notice undissolved sugar at the bottom of the solution container. The actual density of the solution, if you had preparied it homogenously would have been:

less than 1.004g/ml

more than

equal to

none

Answer is option none because the density is mass / volume.

The dissolution does not affect the volume by much

2. suppose you determine the density of a 10ml solution to be 1.025g/ml. You would expect the density of a 5ml solution of the same solution to be:

a. .512g/ml

b. .998g/ml

c. 1.025g/ml

Solution :- The answer is option C because the density does not change with the amount of the solution.

3. A student determines that the density of a lemonade solution is 1.031g/ml, and that of apple juice is 1.043g/ml The data indicates:

a. the apple juice is more homogenous than the lemonade

b. the student used larger samples of apple juice than lemonade

c. the student used different graphs of density versus mass percent sugar for the two samples.

d. the apple juice has a greater mass percent sugar that the lemonade

Solution :- answer is option d. because more density means more mass of sugar.

4 a student determines that the density of a diet beverage is about the same as that of pure water. this would indicate

a. the mass percent sugar in the diet beverage is around 0%

b. the artifiial sweetener and flavorings has a negligible mass

c. all of the above

Solution :- the answer is option b because the mass of the artificial sweetner and flavoring agent is negligible.

5. A 12-volt automobile battery contains a solution of sulfuric acid in water. A mechanic might check the density of this solution in order to determine:

a. the mass percent sugar in the solution

b. the mass percent sulfuric acid in the solution

c. whetther the solution is homogenous.

d. the calibration of density to mass percent sugar

Solution :-

Answer is option B because the mass percent of the sulfuric acid can be checked by checking the density of the solution because if the density is higher than 1.00 g/ml then it contains sulfuric acid and if its about 1.00 g/ml then percent of the sulfuric acid is less.

7. the more sugar that you dissolve in a fixed amount of water:

a. the greater the density of the resulting solution

b. the less flavoring that must be added to make fruit juice

c. the more homogenous the solution

d. the lower the calculated mass percent sugar for the resulting solution

Solution :- answer is option a. that is more sugar you dissolve means more mass of the sugar in fixed volume so it increases the mass to volume ratio so the density is higher so the option A is correct.

8. if you plot solution density versus mass percent NaCl for several different salt water solutions the best straight line for the graph should:

a. pass through the origin

b. allow you to determine mass percent NaCl for any salt water solution based on the solution density

c. have a slope that will help you identify the flavoring used in the solution

d. have a y-intercept equal to the density of the most concentrated solution

Solution :- answer is option b that is one can determine the mass percent for the particular density.