Calculate the number of CO2 molecules in 0.0262 mol of CO2 Calculate the number

Question

Calculate the number of CO2 molecules in 0.0262 mol of CO2
Calculate the number of moles of Cu in 2.3x10^21 atoms of Cu
Calculate the number of moles of C2H6 in 1.22x10^23 molecules of C2H6. Calculate the number of CO2 molecules in 0.0262 mol of CO2
Calculate the number of moles of Cu in 2.3x10^21 atoms of Cu
Calculate the number of moles of C2H6 in 1.22x10^23 molecules of C2H6.
Calculate the number of moles of Cu in 2.3x10^21 atoms of Cu
Calculate the number of moles of C2H6 in 1.22x10^23 molecules of C2H6.

Explanation / Answer

Answer:-

Part A ]

Avogadro’s number is very important relationship to remember

1 mole = 6.022 × 1023 atoms, molecule, protons etc.

To convert from mole to molecule multiply the molar amount by Avogadro’s number

0.0262 mol CO2 × (6.022 × 1023 molecule / 1 mol CO2) = 1.58×1022molecule CO2

Part B]

Avogadro’s number is very important relationship to remember

1 mole = 6.022 × 1023 atoms, molecule, protons etc.

To convert from atom to moles divide the atom amount by Avogadro’s number

2.3 × 1021 atoms Cu = (1 mol / 6.022 × 1023 atoms Cu) = 0.00382 mol Cu

Part C]

Avogadro’s number is very important relationship to remember

1 mole = 6.022 × 1023 atoms, molecule, protons etc.

To convert from molecule to moles divide the molecule amount by Avogadro’s number

1.22 × 1023 molecule C2H6 = (1 mol / 6.022 × 1023 molecule C2H6) = 0.2026 mol C2H6

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