Facts
How many liters are in one mole of any substance?
22.4L
How do you go from moles of given to Moles of unknown?
Unk. mol/Given mol
Convert 100g of Hcl to moles.
2.78mol
Convert 150g of NaCl to moles.
2.59mol
What is percent comp?
The amount of an element in a certain compound.
What does STP stand for?
Standard temperature and pressure.
How do you go from grams to moles of unknown?
1 mol/given g --> Unk. Mol/Given Mol
How many atoms are in 10 moles of PO₄?
3.01x10²⁵
What is the volume occupied by 20g of O₂ gas at STP?
14L
What is the formula for percent composition?
(mass of Element/total mass) x100
What is the unit for molar mass?
g/mol
How do you go from liters to unknown grams?
1mol/22.4L --> Unk.mol/given mol --> Unk. g/1 mol
Convert 0.85 moles of H₂O to Molecules.
5.117x10²³
How many atoms are in 8.25 moles of CH₃COO?
3.48x10²⁵ Atoms
What is the percent of H in sulfuric acid?
2.04% H
What is Avagadro´s number?
6.02x10²³
How do you go from moles of given to liters of unknown?
Unk. mol/Given mol --> 22.4L/1 mol
How many carbon molecules can be produced from 20L of CO₂?
5.375x10²³
How many oxygen molecules are produced from the reaction of 25g of potassium chlorate?
1.85x10²³ molecules O₂
What is the percent oxygen in Dichromate?
51.85% O
How is molar mass calculated?
Add up the atomic weight from the periodic table.
How do you go from grams given to grams of Unknown?
1 mol/given g --> Unk. Mol/Given Mol --> Unk.g/1 mol
How many moles of Fe₂O₃ are produced when 0.275 moles of Fe are reacted?
0.138 mol Fe₂O₃
What volume of oxygen at STP is needed to react with 36.2 g of C₂H₄ according to this reaction: C₂H₄(g) + 3 O₂(g) --> 2 CO₂(g) + 2 H₂O(g)?
57.92L O₂
What is the percent carbon in acetate?
40.68% C