HESI A2 test chemistry - Solutions And Solution Concentrations

What type of solution is an amalgam?

A solution with mercury

Which of the following is an alloy?

Brass

What is an emulsion?

A mixture of liquids that don't normally mix

Which of the following is a compound?

Water

Which of the following is NOT a type of solution?

Suspension

What is the percent concentration of a solution with 5 grams of sugar dissolved in 95 grams of water?

5%

What is the percent concentration of 10 grams of salt in 90 grams of water?

10%

If you have 6 grams of solute in 94 grams of solvent, what is the percent concentration?

6%

How many grams of solute are in a 15% solution with a total mass of 200 g?

30 g

What is the percent concentration of a solution with 8 grams of solute in 192 grams of solvent?

15%

What is the molarity of a solution with 2 grams of NaCl dissolved in 500 mL of water?
(Molar mass of NaCl=58.5g/mol)

0.068 M

How many moles are in 1.5 L of a 2 M NaCl solution?

3 mol

What is the molarity if 10 g of LiNO3 is dissolved in 250 mL of water?
(Molar mass=69g/mol)

0.58 M

How many moles of solute are in 4 L of a 0.75 M solution?

3 mol

What is the molarity of a solution containing 5 g of NaOH in 1 L of water?
(Molar mass=40g/mol)

0.125 M