Calculating Concentration Review

A student dissolves 2.5 g NaCl in enough distilled water to make 50.0 mL solution. What is the molarity of this solution?

A water quality report from your local tap water source says your tap water contains 0.002 g fluoride per 100.0 g of tap water. What is the concentration of fluoride in the tap water, in ppm?

If 36 grams of potassium chloride is dissolved in 128 grams of methanol, what is the percent of solute in the solution?

A 0.45 M solution was made using 64.5 g of magnesium hydroxide. Calculate the volume of the solution.

If you add 51.4 g of MgCl₂ to 1 L of pure water, what is the percent by mass of solute? Assume the density of water is 1.0 g/mL.

If you add 51.4 g of MgCl₂ to 1 L of pure water, what will the molarity of the solution be?

How many grams of sweetener are dissolved in a bottle of soda if a 1 L (1000 g) bottle of soda has a sweetener concentration of 46 ppm?