Name: ____________________________ Prd: ____ HW Stamp #:_______
Molar Mass and Mole Conversions
1. In your own words…
a. describe what a mole is and why it is used in chemistry.
b. describe what molar mass is.
c. describe how you calculate the molar mass of a compound.
2. Calculate the molar mass of each.
a. H2O
b. O2
c. Fe(OH)3
d. CH4
e. Ba(NO3)2
f.
C6H12O6
g. Ni3(PO4)2
3. How many grams of material would have to measure to get 6.022x1023
molecules or formula units of each of the following?
a. NaHCO3
b. C7H12
c. (NH4)2SO4
Name: ____________________________ Prd: ____ HW Stamp #:_______
Molar Mass and Mole Conversions
1. In your own words…
a. describe what a mole is and why it is used in chemistry.
b. describe what molar mass is.
c. describe how you calculate the molar mass of a compound.
2. Calculate the molar mass of each.
a. H2O
b. O2
c. Fe(OH)3
d. CH4
e. Ba(NO3)2
f.
C6H12O6
g. Ni3(PO4)2
3. How many grams of material would have to measure to get 6.022x1023
molecules or formula units of each of the following?
a. NaHCO3
b. C7H12
c. (NH4)2SO4
4. Olivia measures 30.53 g of silver nitrate (___________), how many moles
Write formula here
of silver nitrate does she have?
a. molar mass:
b. number of moles:
5. Stephanie has 3.25x10-3 g of calcium phosphate (___________), how many
Write formula here
moles does she have?
a. molar mass:
b. number of moles:
6. Jordan needs 4.5 moles of iron(III) chloride (___________) for a reaction;
Write formula here
how many grams does he need?
a. molar mass:
b. number of grams:
7. According to his lab procedure, Justin needs 8.26x10-4 moles of
ammonium dichromate (___________); how many grams does he need?
Write formula here
a. molar mass:
b. number of grams:
4. Olivia measures 30.53 g of silver nitrate (___________), how many moles
Write formula here
of silver nitrate does she have?
a. molar mass:
b. number of moles:
5. Stephanie has 3.25x10-3 g of calcium phosphate (___________), how many
Write formula here
moles does she have?
a. molar mass:
b. number of moles:
6. Jordan needs 4.5 moles of iron(III) chloride (___________) for a reaction;
Write formula here
how many grams does he need?
a. molar mass:
b. number of grams:
7. According to his lab procedure, Justin needs 8.26x10-4 moles of
ammonium dichromate (___________); how many grams does he need?
Write formula here
a. molar mass:
b. number of grams: