Question

What is the amount of chocolate powder typically used in a small mocha?

Options:
A) 1 teaspoon
B) 2 teaspoons
C) 1 tablespoon
D) 1.5 tablespoons

Answer 1

The molarity of sucrose in a cup of tea is calculated by dividing the moles of sucrose by the volume of the solution in liters. For 0.01 moles of sucrose in a 200 mL cup of tea, the molarity is 0.05 M.

Step-by-step explanation:

The question concerns the calculation of the molarity of a sucrose solution. To find the molarity of sucrose in a cup of tea (which is 200 mL or 0.2 L), we use the formula M = moles of solute / liters of solution. Given that 1 teaspoon of table sugar (sucrose) is about 0.01 moles, and the volume of the tea is 0.2 liters, we can perform the calculation.

Molarity (M) = moles of sucrose / volume of solution in liters = 0.01 moles / 0.2 L = 0.05 M

The molarity of sucrose after dissolving one teaspoon of sugar in a cup of tea is 0.05 M.