A glycine solution is 2.50%(w/w). How much of glycine is there in a sample that has a mass of 250.0 g?

Question

Quizplus · Accepted Answer

2.50%(w/w) means that there are 2.50 g of glycine for every 100 g of solution. To find the amount of glycine in a 250.0 g sample, we can set up a proportion:

2.50 g glycine / 100 g solution = x g glycine / 250.0 g solution

Solving for x, we get:

x = (2.50 g glycine / 100 g solution) * 250.0 g solution 
x = 6.25 g glycine

Therefore, the answer is C) 6.25 g.

A Glycine Solution Is 2