Representative Particles
Empirical/Molecular Formula
Simple Conversions
Moderate Conversions
Complex Conversions
100
The representative particle for Na.
What is an atom?
100
The empirical formula given the red balls represent oxygen and the white balls represent hydrogen.
What is HO?
100
The number of moles in 36.04 grams of H2O.
What is 2 moles H2O?
100
Mass(in kilograms) of 7.93 moles of HF.
What is 0.159kg HF?
100
Oxygen atoms present in 44.0g CO2.
What is 1.20 x 1024 atoms oxygen atoms?
200
The representative particle for O2.
What is a molecule?
200
The empirical formula for C4H4O6.
What is C2H2O3?
200
The number of grams in 3.5 moles C.
What is 42g C?
200
Molecules of 14g nitrogen dioxide.
What is 1.8 x 1023 molecules NO2?
200
Nitrogen atoms present in 24.6 g of Mg(NO3)2.
What is 2.00 x 1023 atoms nitrogen?
300
The representative particle for the image below.
What is a molecule?
300
The molecular formula for a compound given its empirical formula is CH2 and the compound has a molar mass of 84.12.
What is C6H12?
300
The number of particles in 3.5 moles C.
What is 2.1 x 1024 Particles C?
300
Molecules at STP given 15.6L CH4
What is 4.19 x 1023 molecules CH4?
300
Atoms of nitrogen in 1.2 grams C14H18N2O5.
What is 5.1 x 1021 N atoms?
400
The representative particle for NaCl.
What is an ionic compound(formula unit)?
400
Empirical formula of a compound that is 40.0% C, 6.7% H, and 53.3% O.
What is CH2O?
400
The number of moles in 3.67 x 1022 molecules H2O.
What is 0.0609 moles H2O?
400
Mass of 3.8 x 1024 molecules NO2 gas.
What is 290g NO2?
400
Milligrams of S in H2SO4 given 10.4 g H.
what is 9250 g S?
500
Representative particle for (e)
What is an ionic solid?
500
Molecular formula of a compound with a molar mass of 181.313g/mol that contains 39.7458% C, 2.77596% H, 13.4050% Mg, and 44.0679% Br.
What is C6H5MgBr?
500
The formula units for 3.60 moles CaCl2.
What is 2.17 x 1024 formula units?
500
Moles of H in C6H12O6 given 0.923 moles C.
What is 1.85 moles H?
500
Moles of N in KNH4SO4 given 3.11 x 1022 atoms of O.
What is 0.0516 moles N?