Question

How many milliliters of a 0.184 M KNO3 solution contain 0.113 moles of KNO3?

Answer: 614 ml

Answer 1

614.13 mL

Step-by-step explanation:

The molar concentration (M) is defined as the amount of moles of solute dissolved in 1 L (1000 mL) of solution. In the case of the statement, the solute is KNO₃, and the molar concentration is already indicated: 0.184 moles of the salt (KNO₃) are dissolved in a liter (or 1000 mL) of the solution. With this information, a mathematical relationship can be established to determine the milliliters of solution containing 0.113 moles of KNO₃. Performing the calculation you get:

0.184 moles KNO₃ ______ 1000 mL solution

0.113 moles KNO₃ ______ X = 614.13 mL solution

Calculation: 0.113 moles x 1000 mL / 0.184 moles = 614.13 mL

Then, a volume of 614.13 mL of solution contains 0.113 moles of KNO₃.