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24-11-2021
Chemistry

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A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 400. mL of a solution that has a concentration of Na ions of 1.00 M

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26-11-2021

Answer:

21.86 grams

Explanation:

It is important to note that for every mol of Na3PO4 there is, 3 mols of Na ions are produced.

Na+=1m(0.4l), so mols of Na3PO4= 0.4/3= 0.13333... mols

the molar mass of Na3PO4 is 163.94 grams/mol. 0.1333*163.94=21.86 grams of Na3PO4.

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