When 0.215 mol of a gas is placed into a 34.25 mL container at 125.0°C, it will exert a pressure on the container. Justin has been asked to
calculate the pressure that this gas will exert on the container in kPa, then
to go into the lab and measure this pressure. What will he determine is the
pressure of the gas?

u i forgot the answer?

your answer is c) plasma

~*"auba14"*~

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