When 2.5g of copper sulphate are dissolved in 500ml of water, the concentration of the solution is

Question

Blaine Woodward

Chemistry

8 March, 15:09

When 2.5g of copper sulphate are dissolved in 500ml of water, the concentration of the solution is

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Asia Summers · Answer 1

V (H₂O) = 500 mL

p (H₂O) = 0.9982 g/mL

m (H₂O) = V (H₂O) p (H₂O)

mass of salt solution:

m=m (H₂O) + m (CuSO₄) = V (H₂O) p (H₂O) + m (CuSO₄)

w = m (CuSO₄) / m

w=m (CuSO₄) / {V (H₂O) p (H₂O) + m (CuSO₄) }

w=2.5/{500*0.9982+2.5}=0.004984 (0.4984%)