Determine the percent composition by mass of ammonia sulfate.

I believe you mean ammoniUM sulfate.

The formula is (NH4)2 SO4,
so it has 2 N's, 8 H's, 1 S and 4 O atoms.

Calulate the molar mass (28 + 8 + 32 + 64) and compute the mass percentages of each element.

I think ammonia sulfate is (NH3)2SO4

What you need to do first is find out what the molar mass is for all of those elements combined.

2N=2*14.00
6H=6*1.008
S=32.065
4O=4*15.999

add those up and get the molar mass then to find the %of each element in the compound

(Total mass of element/total MM) * 100%

Oh sorry, drwls is right. I got my compound wrong. There should be 8 H

thank you both.

To determine the percent composition by mass of ammonia sulfate (NH4)2SO4, we need to calculate the mass of each element and then determine the percentage of the total mass that each element contributes.

Step 1: Determine the molar mass of (NH4)2SO4.
The molar mass of nitrogen (N) is 14.01 g/mol, the molar mass of hydrogen (H) is 1.01 g/mol, the molar mass of sulfur (S) is 32.07 g/mol, and the molar mass of oxygen (O) is 16.00 g/mol. To calculate the molar mass of ammonium sulfate, we sum the molar masses of each element:
Molar mass of (NH4)2SO4 =
(2 * molar mass of N) + (8 * molar mass of H) + molar mass of S + (4 * molar mass of O)

Step 2: Calculate the mass of each element in (NH4)2SO4.
Next, we need to calculate the mass of each element in one mole of (NH4)2SO4. This can be done by multiplying the molar mass of each element by the number of atoms of that element in the chemical formula:
Mass of N = (2 * molar mass of N) = 2 * 14.01 g/mol
Mass of H = (8 * molar mass of H) = 8 * 1.01 g/mol
Mass of S = molar mass of S = 32.07 g/mol
Mass of O = (4 * molar mass of O) = 4 * 16.00 g/mol

Step 3: Calculate the total mass of (NH4)2SO4.
To find the total mass of (NH4)2SO4, we sum the masses of each element:
Total mass of (NH4)2SO4 = Mass of N + Mass of H + Mass of S + Mass of O

Step 4: Calculate the percent composition by mass of each element.
Finally, we can find the percent composition by mass of each element by dividing the mass of each element by the total mass of (NH4)2SO4 and multiplying by 100:
Percent composition of N = (Mass of N / Total mass of (NH4)2SO4) * 100
Percent composition of H = (Mass of H / Total mass of (NH4)2SO4) * 100
Percent composition of S = (Mass of S / Total mass of (NH4)2SO4) * 100
Percent composition of O = (Mass of O / Total mass of (NH4)2SO4) * 100

By following these steps, you can calculate the percent composition by mass of ammonia sulfate (NH4)2SO4.