PLEASE HELP!
What is the mass of 1.50x10^-2 mol of (NHv4)v2SOv4?
v=subscript
What's the mass of 1 mol? That's 2*N + 8*H + 1*S + 4*O = ?
So if 1 mole is ?g, how many grams of 0.0150 mol?
THANK YOU!
To find the mass of (NH₄)₂SO₄, you need to know the molar mass of each element in the compound and then perform some calculations.
The molar mass is the mass of one mole of a substance and is expressed in grams per mole (g/mol). To determine the molar mass of (NH₄)₂SO₄, you need to know the atomic masses of each element.
Here's how you can calculate the molar mass of (NH₄)₂SO₄:
1. Find the atomic masses of each element involved:
- N (nitrogen): 14.01 g/mol
- H (hydrogen): 1.01 g/mol
- S (sulfur): 32.07 g/mol
- O (oxygen): 16.00 g/mol
2. Next, determine the number of each element in the formula of (NH₄)₂SO₄:
- (NH₄)₂SO₄ contains 2 nitrogen atoms, 8 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms.
3. Multiply the number of each element by their respective atomic masses:
- Nitrogen: 2 * 14.01 g/mol = 28.02 g/mol
- Hydrogen: 8 * 1.01 g/mol = 8.08 g/mol
- Sulfur: 1 * 32.07 g/mol = 32.07 g/mol
- Oxygen: 4 * 16.00 g/mol = 64.00 g/mol
4. Finally, add up the masses of each element to get the molar mass of (NH₄)₂SO₄:
- Molar mass of (NH₄)₂SO₄ = 28.02 g/mol + 8.08 g/mol + 32.07 g/mol + 64.00 g/mol = 132.17 g/mol
Now that you know the molar mass of (NH₄)₂SO₄ is 132.17 g/mol, you can calculate the mass of 1.50 x 10^-2 mol (or 0.015 mol) of (NH₄)₂SO₄ by multiplying the molar mass by the number of moles:
- Mass = number of moles * molar mass
- Mass = 0.015 mol * 132.17 g/mol = 1.98255 g
Therefore, the mass of 1.50 x 10^-2 mol of (NH₄)₂SO₄ is approximately 1.98255 grams.