Asked Feb 16, 2020

Determine the volume of NaOH solution needed to prepare 26.2 g of Na3PO4 by the reaction

3 NaOH + H3PO4 → Na3PO4 + 3 H2O

The NaOH solution is 12% NaOH by mass and has a density of 1.133 g/mL. Show all steps clearly. Report the answer to the correct number of significant figures and with the appropriate units.


Expert Answer

Step 1

Observing the given balanced equation clearly shows that 1 mole of Na3PO4 is obtained from 3 moles of NaOH.

The moles of NaOH required is determined as shown below,

Chemistry homework question answer, step 1, image 1

Next molarity of NaOH is calculated.


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