# Chemistry

posted by .

Determine the percent composition by mass of ammonia sulfate.

• Chemistry -

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.

• Chemistry -

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%

• Chemistry -

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

• Chemistry -

thank you both.

## Similar Questions

1. ### Chemistry-II (Percent Composition)

1. Identify the percent composition of sodium carbonate. 2. Determine the percent composition of calcium in calcium carbonate. Pls. help me... my prob is that there is something in the solution that bothers me.. pls.kindly show me …
2. ### chemistry

1.to calculate the percent by massof an element in a known compound, divide the mass of the element in one mole by the _______and multiply by 100%. A(n) _______formula represents the lowest________ratio of the elements in a compound. …
3. ### Chemistry

How do you determine the percent composition by mass of a 100 g K2SO4 solution containing a 20-g solute. What is the mole percent composition of the solute, assuming that the solution consists of 100 g water and 20 g of K2S04?
4. ### Chemistry

Monosodium glutamate (MSG), a food-flavor enhancer, has been blamed for “Chinese Restaurant Syndrome,” the symptoms of which are headaches & chest pains. MSG has the following composition by mass: 35.51 percent C, 4.77 percent …
5. ### Chemistry

I need some help with some of these questions: The action of bacteria on meat and fish produces a poisonous compound called cadaverine. As its name implies, it stinks! It is 58.77 percent carbon, 13.81 percent hydrogen, and 27.40 percent …
6. ### Chemistry

I need some help with some of these questions: The action of bacteria on meat and fish produces a poisonous compound called cadaverine. As its name implies, it stinks! It is 58.77 percent carbon, 13.81 percent hydrogen, and 27.40 percent …
7. ### Chemistry

Determine the percent by mass of water in your sample of hydrated copper (II) sulfate. Mass of water = 0.95 g Mass of anhydrous copper sulfate = 2.19 g Mass of hydrate copper sulfate = 3.14 g
8. ### Chemistry

i need help on a lab here are the results Mass of empty beaker and glass rod(62.62) Mass of beaker, glass rod, hydrated copper sulfate(66.02) Mass of beaker, glass rod and anhydrous copper sulfate(65.04) Mass of hydrated copper sulfate(3.4) …