100 g of 20% sodium hydroxide solution contains water.
| January 17, 2021 | education
Given:
m solution (NaOH) = 100 g
w (NaOH) = 20% = 0.2
To find:
m (H2O)
Decision:
w (H2O) = 100% -20% = 80% = 0.8
m (H2O) = w * m solution = 0.8 * 100 g = 80 g
Answer: 80 g
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