Count particles with the Avogadro constant
11th grade (Year 12 in England) · 16 questions · Common Core: NGSS.HS-PS1-7 · England: GCSE Combined Science: Quantitative chemistry (Higher)
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Question 1
How many water molecules are in 3 mol? The Avogadro constant is 6.02 × 10²³ per mol. Give your answer as a number × 10²³ (to 2 decimal places).
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Question 2
A sample contains 6.02 × 10²² molecules. How many moles is this? (Avogadro constant = 6.02 × 10²³ per mol)
Answermol
Question 3
How many atoms in total are in 1 mol of CO₂? (Avogadro constant = 6.02 × 10²³ per mol) Give your answer as a number × 10²³ (to 2 decimal places).
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Question 4
How many carbon atoms are in 0.25 mol? The Avogadro constant is 6.02 × 10²³ per mol. Give your answer as a number × 10²³ (to 2 decimal places).
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Question 5
A sample contains 6.02 × 10²² molecules. How many moles is this? (Avogadro constant = 6.02 × 10²³ per mol)
Answermol
Question 6
How many atoms in total are in 1 mol of CO₂? (Avogadro constant = 6.02 × 10²³ per mol) Give your answer as a number × 10²³ (to 2 decimal places).
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Question 7
How many water molecules are in 1.5 mol? The Avogadro constant is 6.02 × 10²³ per mol. Give your answer as a number × 10²³ (to 2 decimal places).
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Question 8
A sample contains 1.204 × 10²⁴ molecules. How many moles is this? (Avogadro constant = 6.02 × 10²³ per mol)
Answermol
Question 9
How many atoms in total are in 0.5 mol of H₂O? (Avogadro constant = 6.02 × 10²³ per mol) Give your answer as a number × 10²³ (to 2 decimal places).
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Question 10
How many water molecules are in 4 mol? The Avogadro constant is 6.02 × 10²³ per mol. Give your answer as a number × 10²³ (to 2 decimal places).
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Question 11
A sample contains 2.408 × 10²⁴ molecules. How many moles is this? (Avogadro constant = 6.02 × 10²³ per mol)
Answermol
Question 12
How many atoms in total are in 0.5 mol of CH₄? (Avogadro constant = 6.02 × 10²³ per mol) Give your answer as a number × 10²³ (to 2 decimal places).
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Question 13
How many carbon atoms are in 2 mol? The Avogadro constant is 6.02 × 10²³ per mol. Give your answer as a number × 10²³ (to 2 decimal places).
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Question 14
A sample contains 3.01 × 10²⁴ molecules. How many moles is this? (Avogadro constant = 6.02 × 10²³ per mol)
Answermol
Question 15
How many atoms in total are in 0.5 mol of CH₄? (Avogadro constant = 6.02 × 10²³ per mol) Give your answer as a number × 10²³ (to 2 decimal places).
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Question 16
How many oxygen molecules are in 4 mol? The Avogadro constant is 6.02 × 10²³ per mol. Give your answer as a number × 10²³ (to 2 decimal places).
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