Kylie asked in Science & MathematicsChemistry · 10 months ago

what is the concentration in molarity when 10 g of K3PO4 is dissolved in H2O to give 350 ml of solution?

Molar mass of K3PO4=212.3 g/mol

.121M

.135M

.0285M

.0565M

.607M

1 Answer

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  • 10 months ago

    (10 g K3PO4) / (212.2663 g K3PO4/mol) / (0.350 L) = 0.1346 mol/L = 0.135 M

    (This matches the second option, but it violates the rules about significant digits.)

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