How many grams of H₃PO₄ are in 175 mL of a 4.00 M solution of H₃PO₄? A)0.700 B)20.0 C)68.6 D)4.90 E)612

Question

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To solve this problem, we need to use the formula: m = MV, where m is the mass (in grams) of the solute, M is the molarity of the solution (in moles per liter), and V is the volume of the solution (in liters). First, we need to convert the volume (in mL) to liters: 175 mL = 0.175 L Next, we need to use the formula to calculate the mass of the solute: m = MV = (4.00 mol/L) (0.175 L) = 0.700 mol Finally, we can use the molar mass of H₃PO₄ to convert moles to grams: 0.700 mol x 98.076 g/mol = 68.6 g Therefore, the answer is C) 68.6.

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How Many Grams of H₃PO₄ Are in 175 ML of a 4.00