how much NaOH is needed to prepare 400ml of 10.0N NaOH solution
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Answer:
160gm of NaOH.
Explanation:
Na = 23 gm
O = 16 gm
H = 1 gm
1N NaOH solution = dissolve 40 grams of NaOH in 1L of water.
10.0N NaOH solution = dissolve 400 grams of NaOH in 1L of water.
1000 ml of water = 400 gm of NaOH
1 ml of water = (400/1000) gm of NaOH
400 ml of water = (400/1000) × 400 = 160 gm of NaOH.
The formula is weight of substance in grams = Normality x Equivalent weight of the substance x given volume in litre.
10N x 40gm/mol x 400ml/1000 litre = 160 gm NaOH
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