Question

how many grams of glucose are needed to prepare 399 mL of a 2.0%(m/v) glucose solution

Answer 1

Answer:

8.0 g of glucose

Explanation:

Step 1: Given data

• Volume of solution: 399 mL

• Concentration of glucose: 2.0%(m/v)

Step 2: Calculate the mass of glucose in 399 mL of a 2.0%(m/v) solution

The concentration of the solution is 2.0%(m/v), that is, there are 2.0 grams of glucose per 100 mL of solution.

399 mL × 2.0 g/100 mL = 8.0 g