How many grams of NaOH will be needed to prepare 250ml of 0.1M solution

Asked by teenpreneur22 | 25th Aug, 2020, 08:24: AM

Expert Answer:

Molarity can be calculated by-
straight M equals fraction numerator Moles space of space Solute space over denominator Volume space in space straight L end fraction
0.1 equals fraction numerator straight w over denominator straight M cross times straight V space left parenthesis in space straight L right parenthesis end fraction
0.1 equals fraction numerator straight w cross times 1000 over denominator 40 cross times 250 end fraction
straight w equals 0.01 space straight g

So comma space 0.01 space straight g space of space NaOH space is space needed space to space prepare space 250 space ml space of space 0.1 space straight M space solution.

Answered by Ravi | 28th Aug, 2020, 10:47: AM