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Vocabulary
Moles
Find Formula Mass
Suprise
Solving Equations
100
the number of things in on mole of a substance, specifically 6.02 x 10^23
Avogadro number
100
6.02 x 10^23
how many particles are in 1 mole?
100
78.06
C6H6
100
2.1 x 1024 atoms
Determine the number of atoms in 3.54 mol S
100
Mass of O2 = 12.5mole x 32g mole-1 = 400g
If 100 g of CH4(g) burns in oxygen what mass of O2 is consumed?
200
the formula of a compound having the smallest whole-number ratio of atoms in the compound
what is empirical formula?
200
mass is the amount of material. Moles are the amount of material as well, but they are not normalized to the atomic mass of the matter
describe relationship between mass and moles.
200
120
FeS2
200
9.50 mol
Calculate the number of moles of hydrogen atoms in 4.75 mol sulfuric acid
200
72 x 10^23
In 12 moles of CH4 , how many molecules there are ?
300
the mas in atomic mass unots of the formula unit of an ionic compound
What is formula mass?
300
the volume that a mole of gas occupies at a pressure of one atmosphere and a temperature 0.00 degrees C
What is molar volume?
300
253.8
I2
300
3.57 moles
How many moles of sucrose, C12H22O11, are in 1222 g of sucrose?
300
112 L
What volume is occupied by 5.00 moles of N2 ?
400
the equations that expresses exactly how pressure P, volume V, temperature T, and the number of particles n of a gas are related. PV= nRT
What is ideal gas law?
400
44.0 g/mol
What is the molar mass of carbon dioxide?
400
56.077
CaO
400
1.22 × 103 mol
How many moles of magnesium atoms is 7.32 × 1026 atoms?
400
31.1 L (H2O)
What volume is occupied by 25.0 g of water vapor?
500
the ratio of actual yield (from an experiment) to theoretical yield expressed as a percent
What is percent yield ?
500
stoichiometry
A direct measurement on a sample of pure substance can be converted to a count of the number of particles through
500
76.973
Al(OH)3
500
17.50%
What is the percent boron by mass in boric acid, H3BO3?
500
55.0 g
how many grams are there in 72.5 liters of NH3 gas?