100 POINTS PLEASE HELP 1. What is the molar mass of NaOH?

2.How many atoms are in 3.35 moles of Aluminum?

3.How many moles of CO2 gas are in a 101.25 L container filled with CO2 gas?

4.What is the mass of 13.7 moles of N2 gas?

5.How many moles are in 78.5 molecules of CaCO3?

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.