Answers26-27 CFISD TX-Chemistry A CRMeasures of Concentration: Molarity

Measures of Concentration: Molarity Answers

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A chemical supply company sells sulfuric acid (H2SO4) in a concentration of 4.00 M. What volume of this solution would you need to make 12.0 mL of a 0.50 M H2SO4 solution?Which equation should you use?

A
Option
B
Option
C
Option
2
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Which statement best explains how the solution should be made?

A
Add 1.5 mL of 0.50 M H2SO4 to 10.5 mL of water to get 12 mL of 4 M H2SO4.
B
Add 1.5 mL of 4.00 M H2SO4 to 10.5 mL of water to get 12 mL of 0.50 M H2SO4.
C
Add 1.5 mL of 4.00 M H2SO4 to 12 mL of water to get 0.50 M H2SO4.
3

A science teacher adds water to a strong acid for use in the lab with students. This makes the concentration , because the amount

A
weaker
B
stronger
C
the same
4

of solute per volume of solvent

A
increases.
B
decreases.
C
remains the same.
5

Every morning, Sarah prepares the same amount of coffee at the same temperature. Identify the coffee solution with the highest concentration.

A
On Wednesday, Sarah poured sugar into her coffee until the sugar molecules were spread evenly throughout the entire cup of coffee.
B
On Thursday, Sarah poured sugar into her coffee until undissolved sugar remained at the bottom of her coffee cup.
6

Every Sunday, Sarah prepares blue fruit punch to have with dinner. Identify the fruit punch solution with the higher concentration.

A
fruit punch with a very dark blue color
B
fruit punch with a light blue color

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