Mass
What is molar mass?
The mass of one mole of an element
Can you use the mole ratio in an unbalanced equation?
No
How many Sig Figs are in "2"
1
Balance this equation:
H2+O2-->H2O
2H2+O2-->2H2O
What is the abbreviation for the term mole?
Mol
Where can you find the molar mass of an element?
The periodic table
Is the mole ratio a limiting factor when determining sig figs?
No
How many Sig Figs are in "100"
1
Balance this equation:
C6H12O6 + O2 --> CO2 + H2O
C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O
What is Avogadro's Number?
6.02*1023
What is the molar mass of Oxygen?
15.999
What number in the chemical equation is used in the mole ratio?
Coefficient
How many Sig Figs are in "1.09"
3
How many moles are in H2 in this equation(balanced) if there are 2 moles of HCl:
Mg+2HCl --> MgCl2+H2
1 mole
What is a mole in chemistry terms?
A unit of an amount of substance
What is the mass of H2O?
18.015
What is the mole ratio used for?
To convert the amount
How many Sig Figs are in "0.000031909"
5
How many moles are in NH3 in this equation(unbalanced) if there are 2 moles of N2:
N2 + H2 --> NH3
4 moles
What do you use to get from atoms of an element to moles of an element?
Avogadro's numbers (6.02*1023)
How do you get from mass of A to mass of B?
Mass A --> Mole A --> Mole B --> Mass B
What is the mole ratio for O2 and H2O in the balanced equation of: H2+O2 -> H2O (this equation is unbalanced)
1 mole of O2 : 2 moles of H2O
How many Sig Figs are in x for "1968.07+12.4321=X"
6
How many moles are there of O2 if there are 29 g of C6H12O6 in this equation(balanced):
C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O
0.97 grams O2
What is stoichiometry?
The relationship between the quantities of reactants and products before, during, and following chemical reactions