Avogadro’s Constant (VCE SSCE Chemistry): Quizzes

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Avogadro's Constant
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What is the value of Avogadro's constant?

6.02×10236.02 \times 10^{23}

What symbol represents the amount of substance in moles?

nn

How many particles are in 2 mol of a substance?

1.204×10241.204 \times 10^{24}

How many moles equal 4.70×10234.70 \times 10^{23} particles?

0.781 mol

How many moles of oxygen atoms are in 1 mol of O2\text{O}_2 molecules?

2 mol

Why is 'one mole of oxygen' ambiguous?

Could mean O atoms or O2\text{O}_2 molecules

How many moles of Cl\text{Cl}^- ions are in 2 mol of CaCl2\text{CaCl}_2?

4 mol

How many moles of H atoms are in 3.6 mol of H2SO4\text{H}_2\text{SO}_4?

7.2 mol

One dozen equals 12. What number does one mole equal?

6.02×10236.02 \times 10^{23}

How many O atoms in 1.5 mol Fe2(SO4)3\text{Fe}_2(\text{SO}_4)_3?

1.1×10251.1 \times 10^{25} atoms

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