How many moles of ammonium ions and how many moles of sulfate ions are contaiuned in a 0.400 mile sample of (NH4)2SO4?
Referring to the 0.400 mole sample of (NH4)2SO4 on the previous page, how many atoms of N,H,O, and S, are contained in this sample?
How many moles of ammonium ions and how many moles of sulfate ions are contaiuned in a 0.400 mile sample of (NH4)2SO4
0.400 mol (NH4)2SO4 x [2 mols NH4^+/1 mol (NH4)2SO4] = ?
0.400 mol (NH4)2SO4 x [1 mol SO4^2-/1 mol (NH4)2SO4] = ?
Referring to the 0.400 mole sample of (NH4)2SO4 on the previous page, how many atoms of N,H,O, and S, are contained in this sample?
Follow the template above but here is the O atom part
0.400 mols (NH4)2SO4 x [(4 mols O atoms/1 mol (NH4)2SO4] = ?
132 mol
To determine the number of moles of ammonium ions and sulfate ions in a sample of (NH4)2SO4, we need to understand the chemical formula and its components.
The chemical formula (NH4)2SO4 indicates that there are two ammonium ions (NH4+) and one sulfate ion (SO42-) in each molecule of (NH4)2SO4.
To find the number of moles of ions in the sample, we need to use the known molar mass of (NH4)2SO4, which is 132.14 g/mol.
First, we calculate the number of moles of (NH4)2SO4 in the 0.400 g sample:
Number of moles = Mass of sample / Molar mass of (NH4)2SO4
Number of moles = 0.400 g / 132.14 g/mol
Number of moles = 0.00303 mol
Since there are two ammonium ions (NH4+) in each molecule of (NH4)2SO4, the number of moles of ammonium ions is double that of (NH4)2SO4:
Number of moles of ammonium ions = 2 * Number of moles of (NH4)2SO4
Number of moles of ammonium ions = 2 * 0.00303 mol
Number of moles of ammonium ions = 0.00606 mol
Similarly, since there is one sulfate ion (SO42-) in each molecule of (NH4)2SO4, the number of moles of sulfate ions is the same as that of (NH4)2SO4:
Number of moles of sulfate ions = Number of moles of (NH4)2SO4
Number of moles of sulfate ions = 0.00303 mol
Thus, in the 0.400 g sample of (NH4)2SO4, there are 0.00606 moles of ammonium ions and 0.00303 moles of sulfate ions.
Now, moving on to the second question regarding the number of atoms of N, H, O, and S in the sample:
From the chemical formula (NH4)2SO4, we can determine the number of atoms of each element.
(NH4)2SO4 contains:
- 2 nitrogen (N) atoms
- 8 hydrogen (H) atoms (4 from each ammonium ion)
- 1 sulfur (S) atom
- 4 oxygen (O) atoms (from two oxygen atoms in sulfate ion)
Therefore, in the 0.400 g sample of (NH4)2SO4, there are:
- 2 atoms of nitrogen (N)
- 8 atoms of hydrogen (H)
- 1 atom of sulfur (S)
- 4 atoms of oxygen (O)