Asked by Help MeGodHelpMe

Can someone please help me I’m being timed and need help with 2 questions

1. Calculate the mass of oxygen in 418g of Co2

2. Calculate the number of atoms in 7.38 moles of carbon atoms

Answered by DrBob222
mass O2 = 418 g CO2 = 418 x (molar mass O2/molar mass CO2) = ?

1 mol C contains 6.02E23 atoms C; so how many atoms will be in 7.38 mols?

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