Answer
Keys
Assignment
#01
1-
2- g/mol
3- it
present the items which is equal a mole .
4- 3.3
x1023
5- H
= 6.68 x1023 atoms and
O=3.3 x1023 atoms
6- 6.1
x10 22 molecules
7- One
atom and 6.02 x1023 atoms of
Ca
8- 1.125
x 1024 atoms of hydrogen
9- 1.66x10-24g
10- a)
3.13x 1025 atoms b) 13 atoms
c) 7.82 x1024 atoms
Assignment
#02
1- Theoretical yield is 13.88 g and % yield
is 94.32
2- % yield
is 75.3
3- 33.33
g of SiO2
4- % yield 83.5
Assignment #03
1- 141
g of aluminum
acetate
2- The
limiting reactant in this reaction is FePO4. 55.3 g of Ca3(PO4)
2 and 52.1 of Fe2 (CO3)
3 will produce . The excess amount of
CaCO3 is 46.4 g
