How many grams of pure, solid naoh are required to make 400 ml of 0.1m naoh solution? express your answer to 2 significant figur
es,
e.g. 3.3 g?
1 answer:
In this question, you want to make <span>400 ml of 0.1m NaOH solution. The amount of NaOH in mol should be:
molar= mole of NaOH/l of water
0.1m= mol of NaOH/ 0.4l
</span>mol of NaOH= 0.1* 0.4= 0.04 mol
The molecular weight for NaOH should be 40g/mol. Then the amount of NaOH in grams would be: 0.04 * 40(g/mol) = 1.6 grams
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