The Mole
The name for the number used to convert between moles and atoms, molecules, or particles.
Avogadro's Number
The Molar mass of fluorine gas.
38.0 g/mol
The Molar Mass of CaOH
57.1 g/mol
The percent composition oh hydrogen in H2O
11.2%
The empirical formula of a compound that is 75% C and 25% H
CH4
This numerical value is found beneath the elemental symbol, and is used to convert between moles and grams.
molar mass
How many atoms are there in 2.0 moles of sodium?
1.20 x 1024 atoms of sodium
The number of Oxygen's in the compound Na(CO2)3(H2O)4
10 Oxygen atoms
74.9%
The empirical formula of 15.8% carbon and 84.2% sulfur
CS2
What is the numerical value of Avogadro's number.
6.02x1023
The molar mass of Ammonium Sulfate
(NH4)2SO4
132.14g/mol
The molar mass of the hydrate Copper(II) Sulfate Pentahydrate(H2O).
CuSO4 5H2O
249.7 g/mol
The percent composition of NF3
N: 19.7%
F: 80.3%
The empirical formula of a compound with: 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen
CH2O
The number of moles present in 54.0 g of H2O
3.00 moles
Convert 450 grams of lithium to atoms of lithium.
3.90 x 1025 atoms of lithium
The number of atoms in 111g of CaCl2
6.01x1023 atoms
The percent composition of Mg(NO3)2
Mg: 16%
N: 19%
O: 65%
The molecular formula of a compound with an empirical formula of CH2O and a molar mass of 180.0 g/mol
C6H12O6
The number of molecules in a 16.0g sample of Oxygen gas
What is 3.01x1023 molecules
The mass of 48.1L of Chlorine gas @ STP.
152 g of Cl2
The volume at STP occupied by 43.8 g of H2O
54.5 L
The percent composition of glucose(C6H12O6)
40.00% Carbon
6.71% Hydrogen
53.29% Oxygen
A major textile dye manufacturer developed a new yellow dye. The dye has a percent composition of 75.95% C, 17.72% N, and 6.33% H by mass with a molar mass of about 240 g/mol. Determine the molecular formula of the dye.
C15H15N3