Calculate the mass (in g) of solid sodium hydroxide (molar mass = 39.997 g/mol) required to prepare: 5 litres of a solution with pH 12.4. 85 mL of a 2.60 M solution. 250 mL of 50 % (w/w) solution. The density of 50 % (w/w) NaOH is 1.515 g/mL.
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Calculate the mass (in g) of solid sodium hydroxide (molar mass = 39.997 g/mol) required to prepare:
- 5 litres of a solution with pH 12.4.
- 85 mL of a 2.60 M solution.
-
250 mL of 50 % (w/w) solution.
The density of 50 % (w/w) NaOH is 1.515 g/mL.
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