6. Chemical Quantities & Aqueous Reactions

What volume in (µL) of 0.125 M HBr contains 0.170 moles HBr?

Hypernatremia is a medical condition where a patient has high levels of sodium in their blood, and is the result of the body containing too little water. A patient has a measured sodium level of 165 mM. If 30.0 mL of their blood were drawn, what mass (in ng) of sodium would be present?

2.81 grams of an unknown compound was dissolved in water to yield 150 mL of solution. The concentration of the solution was 0.075 M. What was the molecular weight of the substance?

A solution with a final volume of 750.0 mL was prepared by dissolving 30.00 mL of benzene (C₆H₆, density = 0.8787 g/mL) in dichloromethane. Calculate the molarity of benzene in the solution.

Determine the molarity of a solution formed by dissolving 97.7 g LiBr in enough water to yield 750.0 mL of solution.

What is the molarity of a solution that contains 17 g of NH₃ in 0.50 L of solution?

Commercial grade hcl solutions are typically 39.0% (by mass) hcl in water. Determine the molarity of the HCl, if the solution has a density of 1.20 g/mL.

Find the molarity of a 40.0% by mass aqueous solution of sulfuric acid, H₂SO₄, for which the density is 1.3057 g/ml.