Question #6f85b

1 Answer
May 31, 2016

m=1.65g of Neon in each tube.

Explanation:

We can modify the ideal gas law: PV=nRT, by using the expression of number of mole as:

n=m/(MM) where, m is the given mass and MM=20.2g/(mol) is the molar mass of neon.

Thus, PV=m/(MM)RT=>m=(PVMM)/(RT)

We will need first to convert 157kPa to atm:

?atm=157cancel(kPa)xx(1atm)/(101.325cancel(kPa))=1.55atm

=>m=(1.55cancel(atm)xx1.3cancel(L)xx20.2(g)/(cancel(mol)))/(0.0821(cancel(L)*cancel(atm))/(cancel(K)*cancel(mol))xx301cancel(K))=1.65g