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What is the number of atoms in 2 moles of Na2SO4?

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Question: What is the number of atoms in 2 moles of Na2SO4?

Options:

  1. 6.022 x 10^23
  2. 1.2044 x 10^24
  3. 1.2044 x 10^25
  4. 3.011 x 10^23

Correct Answer: 1.2044 x 10^24

Solution: 

Na2SO4 has 2 Na + 1 S + 4 O = 7 atoms. Number of atoms = moles x atoms per mole = 2 moles x 7 atoms = 14 atoms = 1.2044 x 10^24 atoms.

What is the number of atoms in 2 moles of Na2SO4?

Practice Questions

Q1
What is the number of atoms in 2 moles of Na2SO4?
  1. 6.022 x 10^23
  2. 1.2044 x 10^24
  3. 1.2044 x 10^25
  4. 3.011 x 10^23

Questions & Step-by-Step Solutions

What is the number of atoms in 2 moles of Na2SO4?
Correct Answer: 14 atoms
  • Step 1: Identify the chemical formula of the compound, which is Na2SO4.
  • Step 2: Count the number of each type of atom in the formula: 2 Sodium (Na), 1 Sulfur (S), and 4 Oxygen (O).
  • Step 3: Add the number of atoms together: 2 (Na) + 1 (S) + 4 (O) = 7 total atoms in one formula unit of Na2SO4.
  • Step 4: Determine how many moles you have, which is given as 2 moles.
  • Step 5: Calculate the total number of atoms by multiplying the number of moles by the number of atoms per mole: 2 moles x 7 atoms = 14 atoms.
  • Step 6: If needed, convert the number of atoms to scientific notation: 14 atoms = 1.2044 x 10^24 atoms.
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