Mole Calculations Review Sheet - Chemistry
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1
2Name:________________________
Mole Calculations Review Sheet – Chemistry
Directions: You must show your work for all sections to receive any credit!
I can calculate the molar mass of any compound or element.
1. Calculate the molar mass of each of the following formulas:
a. NH
Cl
d. Ca(C
H
O
)
4
2
3
2
2
b. NaC
H
O
e. Al(OH)
2
3
2
3
c. Al
O
f. Sr
(PO
)
2
3
3
4
2
I can calculate the number of moles of any compound or element given the mass of the substance.
2. Calculate the number of moles in the following masses:
a. 32.6 g of Al(OH)
3
b. 0.719 g of NaC
H
O
2
3
2
c. Rust is iron (III) oxide (Fe 2 O 3 ). The owner of a l959 Cadillac convertible wants to
restore it by removing the rust with oxalic acid, but he needs to know how many moles of
rust will be involved in the reaction. How many moles of iron (III) oxide are contained in
2500 g of rust?
I can calculate the mass of any compound or element given the number of moles in the substance.
3. Calculate the masses in the following numbers of moles:
a. 7.36 moles of Ca(C
H
O
)
2
3
2
2
b. 36.94 moles of NH
Cl
4
c. A chocolate chip cookie recipe calls for 0.050 moles of baking soda (sodium bicarbonate,
NaHCO 3 ). How many grams should the chef mass out?
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