100 mL of solution contains of sodium. The molarity is . (Nearest integer) [Na=23.0, O=16.0, P=31.0]

Question

100 mL of  solution contains  of sodium. The molarity is  . (Nearest integer) [Na=23.0, O=16.0, P=31.0]

Canvas Classes · Accepted Answer

Strategy:
 Calculate the moles of Sodium ions from the mass provided. Since one mole of Sodium Phosphate contains three moles of Sodium, determine the moles of the compound and then its molarity.

Step 1: Calculate moles of Sodium

Step 2: Calculate moles of } \ce{Na3PO4}

Step 3: Calculate Molarity

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