solution practice

What is the percent by mass of a solution made by dissolving 20.0 g of NaCl into 180.0 g of water?

• 10.0 %

• 11.1 %

• 80.0 %

• 20.0 %

What mass of water should be added to 22.0 g of KCl to make 5.50% by mass solution?

• 400 g

• 40 g

• 0.25 g

• 25 g

What is the percent concentration of sugar in pink lemonade if 28 g of sugar is added to 209 g of water?

• 14.7 %

• 5.14 %

• 13.4 %

• 8.47 %

• 11.8 %

Solution where more solute can still be dissolved at the given temperature. 

• Saturated
• Unsaturated
• Mixture
• Homogeneous solution

What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300.0 mL of 2.00 M NaOH by dilution?

• 0.067 mL

• 60.0 mL

• 100 mL

• 125 mL

Calculate the Molarity in a solution containing 40.0 g of NaCl dissolved in 500.0 ml of H2O.

• 0.08 M

• 12.5 M

• 1.37 M

• 0.74 M

How many moles would be in 85mL of 0.75M KOH?

• 113.3 mol

• 1.13 mol

• .113mol

• 0.06375mol

• 63.75mol

How many moles of HNO₃ would be needed to react with 85mL of 0.75M KOH?

• 113.3 mol

• 1.13 mol

• .113mol

• 0.06375mol

• 63.75mol