What is the molarity of a solution that contains 0.874 moles of solute dissolved in 754mL of solution?

A. 1.16 M
Correct!

B. 0.00116 M
Incorrect. Remember to solve you first need to convert 754 mL into L. Then divide 0.874 moles by the liters.

C. 0.659 M
Incorrect. Remember to solve you first need to convert 754 mL into L. Then divide 0.874 moles by the liters.

D. 862 M
Incorrect. Remember to solve you first need to convert 754 mL into L. Then divide 0.874 moles by the liters.

A student was asked to prepare a 2.0 M aqueous solution from 62.8 g of copper (I) nitrate, CuNO₃. How much of the solution can be made?

A. 500 mL

Incorrect. Remember to follow the following steps to solve.

• Use the formula mass of CuNO₃ to convert from grams to moles.
• Use the molarity formula to solve for volume.
• Convert the L to mL.

B. 250 mL
Correct!

C. 125.5 mL

Incorrect. Remember to follow the following steps to solve.

• Use the formula mass of CuNO₃ to convert from grams to moles.
• Use the molarity formula to solve for volume.
• Convert the L to mL.

D. 1000 mL

Incorrect. Remember to follow the following steps to solve.

• Use the formula mass of CuNO₃ to convert from grams to moles.
• Use the molarity formula to solve for volume.
• Convert the L to mL.

12.17g of HCl is dissolved in 600 mLs of water to make a hydrochloric acid solution. What is the molarity of the resulting solution?

A. 0.333 M
Incorrect. Remember to solve for moles first using the formula mass of HCl. Convert the 600 mL to L. Then divide the moles of HCl by the L of water.

B. 0.556 M
Correct!

C. 3.31 M
Incorrect. Remember to solve for moles first using the formula mass of HCl. Convert the 600 mL to L. Then divide the moles of HCl by the L of water.

D. 20.3 M
Incorrect. Remember to solve for moles first using the formula mass of HCl. Convert the 600 mL to L. Then divide the moles of HCl by the L of water.

Which solution contains the greatest number of moles of solute?

A. 0.5 L of 0.5 M
Incorrect. To solve for moles, multiply L × M.

B. 0.1 L of 2.0 M
Incorrect. To solve for moles, multiply L × M.

C. 0.1 L of 0.1 M
Incorrect. To solve for moles, multiply L × M.

D. 0.5 L of 2.0 M
Correct!