Question

What weight of HCl gas is dissolved in 0.275 liters of 0.10 M solution of the acid

Answer 1

Answer: 1.00 grams HCl

Step-by-step explanation:

0.1 M solution means 0.1 moles of HCl per liter of solution

0.1 moles/L X 0.275 L = 0.0275 moles of HCl in solution

moles X gram molecular weight = grams of solute (HCl)

0.0275 moles X 36.45 g/mole = 1.0023 grams HCl

3 significant figures - 1.00 grams HCl