Answer:
volume of Burrows = 11.76 ml ( to 2 decimal places)
Explanation:
Total volume of solution = 100 ml
Ratio of Burrows to solvent = 1 : 7.5 v/v
This means that in every 8.5 (1 + 7.5) ml of solution, the volume of Burrows is 1 ml
8.5 ml of solution = 1 ml of Burrows
1 ml of solution = 1/8.5 ml of Burrows
∴ 100 ml of solution = 100 × 1/8.5 ml of Burrows
100 × 1/8.5 = 100 ÷ 8.5 = 11.76 ml
∴ volume of Burrows = 11.76 ml ( to 2 decimal places)
