Asked by shweta
how many grams of NaOH pallets containing 12% moisture are requiredto prepared 60 ltr of 0.5N solution
Answers
Answered by
DrBob222
How many equivalents do you want? That's L x N = equivalents = 60 x 0.5 = 30
How many grams is that? That's
# equivalents x equivalent weight = 30 x 40 = ? grams if it were pure NaOH. But it is only 88% pure so you need
? grams/0.88 = ?
The reasoning goes like this.
I want 1200 grams NaOH. It is only 88% pure. So 0.88 x what number = 1200 OR
1200/0.88 = ?
How many grams is that? That's
# equivalents x equivalent weight = 30 x 40 = ? grams if it were pure NaOH. But it is only 88% pure so you need
? grams/0.88 = ?
The reasoning goes like this.
I want 1200 grams NaOH. It is only 88% pure. So 0.88 x what number = 1200 OR
1200/0.88 = ?
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