Name the following compound and calculate its molar mass. Round your answer to two decimal places. Answers within +/-0.02 of the correct answer will be accepted. Also, when naming ionic compounds with Roman numerals, do NOT put a space between the cation and the Roman numerals, like in copper(I).(NH4)3PO4Name: Molar Mass:
Question
Name the following compound and calculate its molar mass. Round your answer to two decimal places. Answers within +/-0.02 of the correct answer will be accepted. Also, when naming ionic compounds with Roman numerals, do NOT put a space between the cation and the Roman numerals, like in copper(I).(NH4)3PO4Name: Molar Mass:
Solution
The compound (NH4)3PO4 is named Ammonium Phosphate.
To calculate its molar mass, we need to add up the molar masses of all the atoms in the compound.
The molar mass of Nitrogen (N) is approximately 14.01 g/mol. Since there are 3 Nitrogen atoms in the compound, the total mass contributed by Nitrogen is 3 * 14.01 = 42.03 g/mol.
The molar mass of Hydrogen (H) is approximately 1.01 g/mol. Since there are 12 Hydrogen atoms in the compound, the total mass contributed by Hydrogen is 12 * 1.01 = 12.12 g/mol.
The molar mass of Phosphorus (P) is approximately 30.97 g/mol. Since there is 1 Phosphorus atom in the compound, the total mass contributed by Phosphorus is 1 * 30.97 = 30.97 g/mol.
The molar mass of Oxygen (O) is approximately 16.00 g/mol. Since there are 4 Oxygen atoms in the compound, the total mass contributed by Oxygen is 4 * 16.00 = 64.00 g/mol.
Adding all these up, the molar mass of (NH4)3PO4 is 42.03 + 12.12 + 30.97 + 64.00 = 149.12 g/mol.
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