What is the weight percent of a caffeine solution made by dissolving 4.00 g of caffeine,C₈H₁₀N₄O₂,in 75.0 g of benzene,C₆H₆? A)0.0506% B)0.0533% C)5.06% D)5.33%

Question

Quizplus · Accepted Answer

To calculate the weight percent of a solute in a solution, we use the following formula:

weight percent = (mass of solute/mass of solution) x 100

In this problem, the mass of the solute (caffeine) is given as 4.00 g and the mass of the solvent (benzene) is given as 75.0 g, so we can calculate:

weight percent = (4.00 g/79.0 g) x 100 = 5.06%

Therefore, the answer is (C) 5.06%.

What Is the Weight Percent of a Caffeine Solution Made