6. Chemical Quantities & Aqueous Reactions

In a solution of brine (salt water), which component acts as the solvent?

You have 200.0 mL of 0.150 M aqueous NH4Cl. Which of the following statements is true?

How many mL of 5.0 M nitric acid (HNO₃) are required to make 1.00 L of a 0.00100 M solution of HNO₃ (approximately the concentration of acid in acid rain)?

Which of the following is a homogeneous mixture?

What is a solution that has a lower solute concentration compared to another solution called?

You wish to prepare 194 grams of a 9.01% MgCl2 solution. How many grams of magnesium chloride (MgCl2) and how many mL of water will you need? Assume that the density of water is 1.00 g/mL.

Aqueous solutions of sodium thiosulfate, Na₂S₂O₃, are used as an antidote to some snakebites. How many moles of sodium ions are found in 10.0 mL of a 0.15 M solution of Na₂S₂O₃?

What is the mass percent of KCl in the solution prepared by dissolving 165.0 g of KCl in 275 g of water?