Show:
moles
atoms
Molor mass
balancing eq.
formula mass
100
What are moles?
What is a unit to count numbers of atoms, molecules, or formula units of substances.
100
What are atoms composed of?
What is Atoms are composed of particles called protons, electrons and neutrons
100
Calculate the molar mass of CuSO4.
What is 159.5 g/mol
100
__ AgI + __ Na2S → __ Ag2S + __ NaI
What is 2 AgI + 1 Na2S → 1 Ag2S + 2 NaI
100
what is formula mass?
What is the mas in atomic mass units of one formula unit of an ionic compound
200
what is molar volume?
What is a volume occupied by one more substance at a given temp or pressure?
200
How many atoms of lead are in a sample of 10.0 g Pb?
What is what is 5 atoms
200
Calculate the molar mass of CaCOH
What is 69.09 g/mol
200
__ Ba3N2 + __ H2O → __ Ba(OH)2 + __ NH
What is 1 Ba3N2 + 6 H2O → 3 Ba(OH)2 + 2 NH
300
How many particles would 1 mole of CO2 contain?
What is 1.806x1023
300
How many atoms of Magnesium are present in a sample of 10.0g Mg?
What is 5 atoms
300
Calculate the molar mass of Cr4(P2O7)3.
What is 729.8 g/mol
300
__ CaCl2 + __ Na3PO4 → __ Ca3(PO4)2 + __ NaCl
What is 3 CaCl2 + 2 Na3PO4 → 1 Ca3(PO4)2 + 6 NaCl
400
Calculate the molar mass of RbOH·2H2O
What is 138.47 g/mol
400
__ FeS + __ O2 → __ Fe2O3 + __ SO2
What is 4 FeS + 7 O2 → 2 Fe2O3 + 4 SO2
500
How many Moles are in a sample of 10.0g of Mg?
What is 243.05
500
Calculate the molar mass of KAl(SO4)2·12H2O.
What is 474.2 g/mol
500
__ PCl5 + __ H2O → __ H3PO4 + __ HCl
What is 1 PCl5 + 4 H2O → 1 H3PO4 + 5 HCl