QQuestionChemistry
QuestionChemistry
Determine both the formula mass and molar mass of ammonium carbonate, (NH4)2CO^3.
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Answer
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Step 1:
First, let's determine the formula mass of ammonium carbonate, (NH4)2CO^3. The formula mass is the sum of the atomic weights of all atoms in a molecule.
Step 2:: Find the atomic weight of each element in the compound.
- Nitrogen (N): 14.0067 amu - Hydrogen (H): 1.0079 amu - Carbon (C): 12.011 amu - Oxygen (O): 15.999 amu
Step 3:: Calculate the mass of each type of atom in the compound.
- Nitrogen: 2 * 14.0067 amu = 28.0134 amu - Hydrogen: 8 * 1.0079 amu = 8.0632 amu - Carbon: 1 * 12.011 amu = 12.011 amu - Oxygen: 3 * 15.999 amu = 47.997 amu
Step 4:: Add up the masses of all atoms to get the formula mass.
Formula mass = 28.0134 amu + 8.0632 amu + 12.011 amu + 47.997 amu = 96.0846 amu
Step 5:
Now, let's determine the molar mass of ammonium carbonate. The molar mass is the mass of one mole of a substance in grams. It is numerically equivalent to the formula mass but in grams. Molar mass = 96.0846 g/mol (rounded to five decimal places)
Final Answer
- The formula mass of ammonium carbonate, (NH4)2CO^3, is 96.0846 amu. - The molar mass of ammonium carbonate is 96.0846 g/mol.
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