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The Mole/Molar Mass
Mole Conversions
More Mole Conversions
Empirical and Molecular Formulas
Stoichiometry
100

Quantity of a mole

What is 6.02 x 10^23?

100

Explain how to convert from moles to grams and grams to moles of the same substance

What is multiply or divide by the molar mass of the substance?

100

How many molecules are present in 8.48 moles of H2O?

What 5.10 x 10^24 molecules of water?

100

Describe percent composition

What is percent by mass of each compound?

100
Determine the mole ratio for HgCl2 and AlCl3: 2AlI3 + 3HgCl2 --> 2AlCl3 + 3HgI2
What is 3/2 or 2/3?
200

molar mass of bismuth

What is 209.98 grams?

200

number of moles in 45 grams of HF

What is 2.25 moles?

200

How many moles are there in 3.47 x 10^ 23 gold atoms?

What is .58 moles of gold atoms?

200

Definition of empirical formula

What is the smallest whole number ratio of elements in a compound?

200

How many moles of NH3 are produced when 7.45 moles of N2 are used N2 + 3H2 --> 2NH3

What is 14.9 moles NH3?

300
Molar mass of CaO
What is 56.08 grams?
300
Number of moles in 456 g of Ra(OH)2
What is 1.75 moles?
300
What is the mass of 5.0 x 10^14 molecules of water?
What is 1.50 x 10^-8 grams of H2O?
300
Explain how to calculate the molecular weight of a compound given the empirical formula
What is answers will vary?
300
What mass of CO2 is produced when 6.2 moles of C3H8 is used C3H8 + 5 O2 --> 3 CO2 + 4 H2O
What is 818.2 grams of CO2?
400
Molar mass of Barium Chloride
What is 208.23 grams?
400
Number of grams in 1.47 moles NaHCO3
What is 123.44 grams?
400
How many molecules are contained in 168.2 grams of CO2
What is 2.30 x 10^24 molecules?
400
What is the empirical formula for a compound that is 74.03% C, 8.7%H and 17.27%N
What is C5H7N?
400
What mass of of NaI will react with 7.82 grams of Cl2?
What is 33.06 g of NaI?
500
Molar mass of ammonium hydroxide
What is 35 g?
500
Number of grams in .568 moles of Pb(CH3COO)4
What is 25.73 grams?
500

How many molecules of water are there in 502.7 mL od water?

What is 1.35 x 10^22 molecules?

500
Using the empirical formula from the previous problem C5H7N determine the molecular formula if the compound has a molecular mass of 324 g.
What is C20H28N4?
500

Determine the limiting reactant for the following reaction and how many grams of CO2 will be produced 256.5 grams of C8H18 react with 984.6 grams of O2 2C8H18 + 25O2 --> 16CO2 + 18H2O

What is C8H18 and 792 grams?