A solution contains 20% (w/w) of glucose. If the total mass of the solution is 2

₹0.0

Question: A solution contains 20% (w/w) of glucose. If the total mass of the solution is 200 g, what is the mass of glucose in the solution?

Options:

Correct Answer: 40 g

Solution:

Mass of glucose = (20/100) x 200 g = 40 g.

A solution contains 20% (w/w) of glucose. If the total mass of the solution is 200 g, what is the mass of glucose in the solution?

A solution contains 20% (w/w) of glucose. If the total mass of the solution is 200 g, what is the mass of glucose in the solution?

Step 1: Understand that '20% (w/w)' means that 20 grams of glucose are present in every 100 grams of the solution.
Step 2: Identify the total mass of the solution, which is given as 200 grams.
Step 3: To find the mass of glucose, use the formula: Mass of glucose = (percentage / 100) x total mass of solution.
Step 4: Substitute the values into the formula: Mass of glucose = (20 / 100) x 200 grams.
Step 5: Calculate the mass of glucose: (20 / 100) x 200 = 40 grams.

Weight/Weight Percentage – Understanding how to calculate the mass of a component in a solution based on its weight/weight percentage.