Question

3. Calculate how many grams of NaCl are required to make 100 mL of a 1 M NaCl solution. Show your work in the space below.

Answer 1

Step-by-step explanation:

To make 100 mL of a 1 M NaCl solution, you need to add 58.44 grams of NaCl (sodium chloride).

The formula for molarity (M) is:

M = m/V

where

m = mass of solute (NaCl)

V = volume of solution (100 mL)

Given that M = 1, we can rearrange the formula to find m:

m = M x V

m = 1 x (0.1 L) x (58.44 g/mol)

m = 58.44 g

So, you need to add 58.44 grams of NaCl to 100 mL of water to make a 1 M NaCl solution.