Show:
Avagadro's Number
Molar Mass
Molar Volume
Percent Composition
Empirical and Molecular Formulas
100
Avogadro's Number
What is 6.02 X 10^23
100
The molar mass of sucrose (C12H22O11)
What is 342 g.
100
The number of liters on 1 mole of gas at STP
What is 22.4 Liters
100
The percent of Hydrogen in HCl.
What is 2.7%
100
The formula with the lowest whole number ratio
What is empirical formula
200
The amount of moles in 3.52 X 10^24 molecules of water.
What is 5.8 moles
200
The molar mass of uranium hexafluoride. (UF6)
What is 352 g.
200
The volume at STP of 2.6 moles of methane (CH4) gas.
What is 58.24 L
200
The percent of potassium in K2CO3.
What is 56.5%
200
Type of formula: C2H6
What is Molecular Formula
300
The number of atoms in 0.6 moles of Zinc.
What is 3.6 X 10^24
300
The mass in grams of 8 moles of PbO
What is 1785.5 g
300
The number of moles in 135 L of ammonia (NH3) gas.
What is 6.02 moles.
300
The Percent composition of HCN
What is H: 3.7% N: 51.8% C: 44.4%
300
The empirical formula of a compound that is 94.1% Oxygen and 5.9% Hydrogen
What is OH
400
The number of moles in 3.7 X 10^25 molecules of carbon dioxide.
What is 61 moles
400
The number of moles in 13.5 grams of Magnesium nitrate [Mg(NO3)2]
What is 0.09 Moles
400
The volume in 0.023 moles of CO2
What is 0.5 Liters
400
Percent composition when 9.03g of Magnesium combines completely with 3.48 g of Nitrogen.
What is 72% Magnesium, 28% Nitrogen
400
The empirical formula a compound that is 46.46% Lithium and 53.54% Oxygen.
What is Li2O
500
The number of hydrogen atoms in 6 moles of water.
What is 7.2 X 10^24 hydrogen atoms.
500
A chemist plans to use 435.0 grams of ammonium nitrate (NH4NO3) in a reaction. How many moles of the compound is this?
What is 5.4 Moles
500
The volume in 56g of O2 at STP. (Hint: Convert to moles first)
What is 39.2 Liters.
500
Mass of Hydrogen in 350g of C2H6
What is 70g
500
The molecular formula of a compound with the empirical formula C2OH4 and a molar mass of 88 grams per mole.
What is C4O2H8