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What is the weight in grams of 1 mole of ammonium sulfate

((NH₄)₂SO₄) ?

a. 114.10 g

b. 134.25 g

c. 118.54 g

d. 132.15 g

1 Answer

6 votes

Final answer:

The weight in grams of 1 mole of ammonium sulfate ((NH₄)₂SO₄) is 132.17 g, which is closest to the provided option (d) 132.15 g.

Step-by-step explanation:

To calculate the weight in grams of 1 mole of ammonium sulfate ((NH₄)₂SO₄), we need to find its molar mass by adding the atomic masses of all the atoms in one molecule of ammonium sulfate. Ammonium sulfate is composed of 2 ammonium ions (NH₄+) and 1 sulfate ion (SO₄2-). Using the periodic table, we sum up the atomic weights: for nitrogen (N) 14.01 g/mol, hydrogen (H) 1.01 g/mol, sulfur (S) 32.07 g/mol, and oxygen (O) 16.00 g/mol.

The calculation is as follows:

  • (2 x 14.01 g/mol) for nitrogen
  • (8 x 1.01 g/mol) for hydrogen
  • (1 x 32.07 g/mol) for sulfur
  • (4 x 16.00 g/mol) for oxygen

Total molar mass = (2 x 14.01) + (8 x 1.01) + 32.07 + (4 x 16.00) = 28.02 + 8.08 + 32.07 + 64.00 = 132.17 g/mol.

Therefore, the weight in grams of 1 mole of ammonium sulfate is 132.17 g, which is closest to option (d) 132.15 g.

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