Chemistry, asked by drashti12, 3 months ago

calculate the parts per million for solution in which 2×10°^-7 kg calcium bicarbonate is dissolved in 2 litters solution.

Answers

Answered by santwanamohanty3

Explanation:

Molar mass of CaCO3 = 100g

Mass of CaCO3 = 10g

Moles of CaCO3 = Mass of solute/ Molar mass of solute = 10/100 = 0.1mol

Mass of solvent = Mass of solution - Mass of solute = 1000 - 10 = 990g or 0.99 kg

Molality = Number of moles of solute / Mass of solvent in Kg

Molality = 0.1/0.99 = 0.1010 m

Answered by pamaharshi942

Answer:

Explanation:

Molar mass of CaCO3 = 100g

Mass of CaCO3 = 10g

Moles of CaCO3 = Mass of solute/ Molar mass of solute = 10/100 = 0.1mol

Mass of solvent = Mass of solution - Mass of solute = 1000 - 10 = 990g or 0.99 kg

Molality = number of moles of solute / Mass of solvent in Kg

Molality = 0.1/0.99 = 0.1010 m

Explanation:

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