ASCP ASCP-MLT Question Answer
% concentration (expressed as a proportion or ratio) x volume needed = mass of reagent to use
So... 10% (w/v) solution of sodium hydroxide x 200 mL needed = 20 grams of sodium hydroxide
How many grams of sodium hydroxide are required to prepare a 200 ml solution of a 10% (weight per volume) solution? (Atomic weights: Na = 23; 0 = 16; H = 1)
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