Calculate the mass fraction (% content) of pure sodium hydroxide if 10 g is dissolved in 190 g of water.
| November 19, 2020 | education
m solution (NaOH) = m (dissolved substance) + m (solvent) = 10 g + 190 g = 200 g
ω (NaOH) = m (things) / m (solution) x 100% = 10 g / 200 g x 100% = 5%
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