Question

How do you prepare the solution 250mL of a 3.6% w/v solution of NaCl in water

Answer 1

Step-by-step explanation

Given

volume of the solution = 250 mL

percentage of NaCl = 3.6%

Required: How to prepare the solution

Solution

% = amount of NaCl in g/250 mL

0.036 = amount of NaCl in g/250 mL

Amount of NaCl = 0.036 x 250 = 9 g

Step 1: Add 9 g of NaCl to 250 mL water

The percentage will be = (9/250)*100 = 3.6%

Answer

Add 9 g of NaCl to 250 mL of water