How many grams of KBr are required to make 350.mL of a 0.115 M KBr solution?
A)0)338 g
B)3)04 g
C)4)79 g
D)40.3 g

Question

Quizplus · Accepted Answer

The formula to calculate the mass of solute required to make a solution is:

Mass of solute = concentration x volume x molar mass

First, we need to convert the volume from milliliters to liters:
350 mL = 0.350 L

Now we can use the formula to calculate the mass of KBr:

Mass of KBr = 0.115 mol/L x 0.350 L x 119.01 g/mol (molar mass of KBr)
Mass of KBr = 4.79 g

Therefore, the answer is choice C: 4.79 g.

How Many Grams of KBr Are Required to Make 350