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To prepare 100 g of a 92% by weight solu...

To prepare `100 g` of a 92% by weight solution of `NaOH` how many `g` of `H_(2) O`is needed?

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To solve the problem of how many grams of water (H₂O) are needed to prepare 100 g of a 92% by weight solution of NaOH, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Definition of Weight Percent**: The weight percent (w/w%) of a solution is defined as the mass of the solute (in this case, NaOH) divided by the total mass of the solution, multiplied by 100. 2. **Calculate the Mass of NaOH**: ...
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