Sodium carbonate (naco3) is sometimes used as a water-softening agent. suppose that a worker prepares a 0.730 m solution of naco3 and water. the volume of the solution is 1.421 liters. what is the mass of solute in the solution?
express your answer to three significant figures.
the mass of dissolved sodium carbonate is
grams
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Ответ:
The answer to your question is: 110 g of Na₂CO₃
Explanation:
Data
Na₂CO₃
concentration = 0.73 M
volume = 1.421 l
MW Na₂CO₃ = (2 x 23) + (12 x 1) + (16 x 3) = 106 g
Process
Molarity = moles / volume
moles = Molarity x volume
moles = 0.73 x 1.421
moles = 1.03733
1 mol of Na₂CO₃ 106 g
1.03733 x
x = (1.03733 x 106) / 1
x = 109.95 g ≈ 110 g
Ответ:
No because of the equation Hydrogen is brought out of it. This will make the equation uneven therefor it is invalid.
Explanation: