Level 1
How many moles are in 12.04 × 10²³ atoms of carbon?
2.0 mol(s)
How many atoms are present in 0.50 moles of aluminum (Al)?
3.01×1023 atoms
How many hydrogen atoms are present in 2.0 moles of H₂O molecules?
2.41×1024 H atoms
How many molecules are in 7.5 moles of glucose (C₆H₁₂O₆)?
4.52×1024 molecules
How many oxygen atoms are present in 4.0 moles of Al₂(SO₄)₃?
2.89×1025 O atoms
How many particles are in 2.0 moles of oxygen molecules (O₂)?
1.20×1024 molecules
A sample contains 4.82 × 10²⁴ molecules of CO₂. How many moles is this?
8.00 mol
A sample contains 1.5 moles of ammonia (NH₃). How many hydrogen atoms does it contain?
Each NH₃ has 3 H atoms.
2.71×1024 H atoms
A sample contains 9.03 × 10²⁴ sulfur atoms. How many moles is this?
15.0 mol
A sample contains 1.20 × 10²⁵ molecules of H₂SO₄. How many hydrogen atoms are present?
2.40×1025 H atoms
How many moles are represented by 3.01 × 10²³ molecules of water (H₂O)?
0.50 mol
How many molecules are in 0.25 moles of methane (CH₄)?
1.51×1023 molecules
How many oxygen atoms are present in 3.0 moles of CO₂?
3.61×1024 O atoms
How many total atoms are present in 0.80 moles of Na₂SO₄?
3.37×1024 atoms
How many total atoms are present in 2.5 moles of Ca(NO₃)₂?
1.35×1025 atoms