What mass of NaOH is contained in 200 g of 10% solution

univerkov | January 17, 2021 | education

given:
m solution (NaOH) = 200 g
w (NaOH) = 10%
to find:
m substance (NaOH)
decision:
m substance (NaOH) = m solution * w = 200 g * 0.1 = 20 g
answer: 20 g.

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