What is the concentration of a solution with a volume of 1.38 mL that contains 17.36 grams of ammonium sulfite [(NH4)2SO3]?

C = 107.97 mol/L

Explanation:

Given data:

Volume of solution = 1.38 mL (1.38 mL× 1 L /1000 mL = 0.00138 L)

Mass of ammonium sulfite = 17.36 g

Concentration of solution =?

Solution:

We will calculate the number of moles of ammonium sulfite.

Number of moles = mass/molar mass

Number of moles = 17.36 g / 116.15 g/mol

Number of moles = 0.149 mol

Concentration/molarity:

C = n/V

C = 0.149 mol / 0.00138 L

C = 107.97 mol/L

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