Calculate the mass of 4.50 moles of Ca₃PO₄.

Question

Quizplus · Accepted Answer

To calculate the mass of the compound, we need to find the molar mass of Ca₃PO₄ first. - Molar mass of Ca: 40.08 g/mol - Molar mass of S: 32.06 g/mol - Molar mass of P: 30.97 g/mol - Molar mass of O: 15.99 g/mol Total molar mass = (40.08 g/mol x 1) + (32.06 g/mol x 13) + (30.97 g/mol x 1) + (15.99 g/mol x 14) = 968.16 g/mol Now, we can use the following formula to find the mass: mass = moles x molar mass mass = 4.50 mol x 968.16 g/mol = 4356.72 g However, the answer choices are in different units, so we need to convert grams to the correct unit: 4356.72 g = 4.35672 kg Therefore, the best answer choice is B, which gives the mass in kilograms.

Calculate the Mass of 4.50 Moles of Ca3PO4

Calculate the Mass of 4.50 Moles of Ca₃PO₄