3. Complete the following conversions. a. 10.5 g =kg
b. 1.57 km =m
c. 3.54 ug = g
d. 3.5 mol =__ umol e. 1.2
L=mL
f. 358 cm3 =m3
g. 548.6 mL =cm3

I need the answers and how to do it too please. I really need someone’s help

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o