Question

what is the molarity of 25 ml a hydrochloric acid solution that contains 0.020 moles? report your answer to three decimal places. type answer: enter a number

Explanation:

Step1: Recall Molarity Formula

Molarity ($M$) is defined as moles of solute ($n$) divided by volume of solution in liters ($V$), so $M = \frac{n}{V}$.

Step2: Convert Volume to Liters

Given volume is 25 mL. Since 1 L = 1000 mL, $V = \frac{25}{1000} = 0.025$ L.

Step3: Calculate Molarity

Substitute $n = 0.020$ mol and $V = 0.025$ L into the formula: $M = \frac{0.020}{0.025} = 0.8$. But we need three decimal places, so it's $0.800$.

Answer:

0.800