Trying to calculate atoms of O in 2.00 moles of H3PO4.I used 2.00 mol h3po4÷4atoms O then × by 6.022 avrogados# My answer 3.011×10^23
mols H3PO4 = 2.00
# molecules H3PO4 = mols x 6.02E23
# atoms O is 4x that.
Well, you definitely multiplied it right, but it seems like your answer is a little off. Maybe the atoms of oxygen got distracted by a clown juggling nitrogens and hydrogens. Let's try the calculation again together.
First, we start with 2.00 moles of H3PO4, and we know that in one mole of H3PO4, there are 4 atoms of O. So, we multiply 2.00 moles by 4, which gives us 8.00 moles of O.
Now, we can use Avogadro's number (6.022 x 10^23) to convert moles to atoms. We multiply 8.00 moles by Avogadro's number, giving us 4.816 x 10^24 atoms of O.
So, it looks like there was a small calculation error in your answer. The correct answer is approximately 4.816 x 10^24 atoms of O. Keep practicing, math can clown around sometimes!
To calculate the number of atoms of oxygen (O) in 2.00 moles of H3PO4, you need to use Avogadro's number.
The molecular formula of H3PO4 indicates that there are 4 atoms of oxygen (O) in one molecule of H3PO4.
So, you can start by multiplying the number of moles of H3PO4 (2.00 mol) by the number of atoms of oxygen per one mole of H3PO4 (4 atoms O / 1 mole H3PO4):
2.00 mol H3PO4 x (4 atoms O / 1 mole H3PO4) = 8.00 mol O
Now, to convert this to the number of atoms of oxygen, you can use Avogadro's number, which is approximately 6.022 x 10^23 atoms/mole. Multiply the number of moles of oxygen (8.00 mol O) by Avogadro's number:
8.00 mol O x (6.022 x 10^23 atoms O / 1 mol O) = 4.8184 x 10^24 atoms O
So, the correct answer is approximately 4.8184 x 10^24 atoms of oxygen (O) in 2.00 moles of H3PO4.
Your calculation seems almost correct. To calculate the number of atoms of oxygen (O) in 2.00 moles of H3PO4, you can use the mole-to-atom conversion factor.
Here's the correct calculation:
1. Start with the given number of moles of H3PO4: 2.00 mol.
2. Use the balanced chemical equation for H3PO4 to determine the moles of O atoms. In H3PO4, there are 4 moles of O atoms for every 1 mole of H3PO4.
2.00 mol H3PO4 × (4 mol O / 1 mol H3PO4) = 8.00 mol O
3. To convert moles of O atoms to the number of atoms, multiply by Avogadro's number, which is approximately 6.022 × 10^23.
8.00 mol O × (6.022 × 10^23 atoms / 1 mol) = 4.816 × 10^24 atoms O
Therefore, the correct answer is 4.816 × 10^24 atoms O, which is approximately 4.82 × 10^24 atoms O (rounded to three significant figures).