Question

Calculate the % by mass of solute in an aqueous solution which is made up of 5.50g of NaBr in 78.2g of solution

Answer 1

[AI-generated answer — Bot GPT 3.5]

First, calculate the total mass of the solution:

Total mass = mass of NaBr + mass of water
Total mass = 5.50g + 78.2g
Total mass = 83.7g

Next, calculate the % by mass of NaBr in the solution:
% by mass = (mass of NaBr / total mass) x 100
% by mass = (5.50g / 83.7g) x 100
% by mass = 6.57%

Therefore, the % by mass of NaBr in the solution is 6.57%.