Question

What will be the molarity of the solution containing 18.25g of hcl gas in 500gm of water?

Answer 1

Answer:

• mass of solute [Hcl] = 18.25 g
• mass of water =500 g
• molar mass of HCl= 1+ 35.5

= 36.5

• density = mass of solution/ volume

1g/ml = 500 /volume

[ density of H2o=1]

• volume of solution = 500 ml

molarity[ M] = mass of solute[g] ×1000÷molar mass of solute × volume of solution [ ml]

M = 18.25 × 1000/ 36.5 × 500

M = 18250/18250

M = 1 mol / kg

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Answer 2

Answer:mass of solute [Hcl] = 18.25 g

mass of water =500 g

molar mass of HCl= 1+ 35.5

= 36.5

density = mass of solution/ volume

1g/ml = 500 /volume

[ density of H2o=1]

volume of solution = 500 ml

molarity[ M] = mass of solute[g] ×1000÷molar mass of solute × volume of solution [ ml]

M = 18.25 × 1000/ 36.5 × 500

M = 18250/18250

M = 1 mol / kg

Explanation: