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Molarity Ws

The document contains a worksheet with 15 problems related to calculating molarity, mass, and volume of various chemical solutions. Each problem requires the application of formulas for molarity and concentration, involving different substances like potassium nitrate, lithium chloride, and hydrochloric acid. Students are instructed to show all work for full credit.

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11 views2 pages

Molarity Ws

The document contains a worksheet with 15 problems related to calculating molarity, mass, and volume of various chemical solutions. Each problem requires the application of formulas for molarity and concentration, involving different substances like potassium nitrate, lithium chloride, and hydrochloric acid. Students are instructed to show all work for full credit.

Uploaded by

yadavnid0
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Name _________________

Molarity WS Date ______________________

Hour ____________

Be sure to show all work for full credit.

1. 0.0750 moles of potassium nitrate is dissolved in water and diluted to a final volume of 500. mL. What is the
molarity of the solution?

2. How many grams of potassium bicarbonate, KHCO3, must be dissolved and diluted to 2.0 L to produce a solution
that is 0.750 M?

3. 274 mg of lithium chloride are dissolved in water and diluted to 50.0 mL. Find the molarity of this solution.

4. How many grams of salt would be added to prepare 2.50 L of a 3.0% saline solution by mass?

5. Determine the molarity of a solution prepared by dissolving 36.5g of H2SO4 in water to make 2.0 L of solution.

6. How much 15.4 M HNO3 must be used to prepare 6.5 L of 6.0 M HNO3?

7. What volume of 0.30 M solution can be prepared from 50.5 g of potassium nitrate?
8. How many grams of cane sugar, C12H22O11, would be needed to prepare 1.0 L of a 0.20 M sugar solution?

9. If 10.0 mL of acetic acid is diluted with water to a total solution volume of 200.0 mL. What is the percent by
volume of acetic acid in the solution?

10. How much water would be needed when 6.3 g of MgNO3 is dissolved to make up a 4.0% by mass solution?

11. What is the percent by volume of AgNO3 when 50.0 mL is diluted to 450. mL in water?

12. A solution of hydrochloric acid, HCl, is 0.300 M. What mass of acid is dissolved in 150. mL of solution?

13. What is the molarity of a solution of Mg(OH)2 that contains 20.0 g of solute in 325 mL of solution?

14. How many grams of potassium iodide is required to make 500. mL of 0.125 M solution?

15. Determine the molarity of CuBr2 solution when 145 g is dissolved to form 2.50 L of solution.

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