In the Sl system of units, the mole is one of
seven base units. It is frequently used in
chemical calculations. However, a mole of
something is just a particular quantity of it. It is
not a unit of measure in the way that meters,
seconds, and kilograms are. Calculations
performed with the number of moles of a
substance could also be performed with the
number of particles of a substance. Based on
this information, do you think that the mole
should be considered a base unit in the SI
system? Explain why or why not.
maxir

what is the question here. i think you messed up.

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

answerca air mass;