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What is the total number of moles of atoms contained in 1 mole of NH3?
4
171.3 g
C4H8
48.5 g
1:1:3
P2O5
BeO
53.5 g/mol
Which is an empirical formula?
4
171.3 g
C4H8
48.5 g
1:1:3
P2O5
BeO
53.5 g/mol
The gram formula mass of NH4Cl is
4
171.3 g
C4H8
48.5 g
1:1:3
P2O5
BeO
53.5 g/mol
The molar mass of Ba(OH)2 is
4
171.3 g
C4H8
48.5 g
1:1:3
P2O5
BeO
53.5 g/mol
A sample of a compound contains 65.4 grams of zinc, 12.0 grams of carbon, and 48.0 grams of oxygen. What is the mole ratio of zinc to carbon to oxygen in this compound?
4
171.3 g
C4H8
48.5 g
1:1:3
P2O5
BeO
53.5 g/mol
In which compound is the percent by mass of oxygen the greatest?
4
171.3 g
C4H8
48.5 g
1:1:3
P2O5
BeO
53.5 g/mol
A sample of a substance containing only magnesium and chlorine was tested in the laboratory and was found to be composed of 74.5% chlorine by mass. If the total mass of the sample was 190.2 grams, what was the mass of the magnesium?
4
171.3 g
C4H8
48.5 g
1:1:3
P2O5
BeO
53.5 g/mol
A substance has an empirical formula of CH2 and a molar mass of 56 g/mol. The molecular formula for this compound is
4
171.3 g
C4H8
48.5 g
1:1:3
P2O5
BeO
53.5 g/mol
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