Answer:- 1.62 moles
Solution:- At constant temperature and pressure, volume is directly proportional to the moles of the gas.

from given data,
= 5.17 L,
= 1.05 moles
= 8.00 L,
= ?
Let's plug in the values in the formula:

On cross multiply:

= 1.62 moles
So, now the toy contains 1.62 moles of the air.
Answer:
the mass of the glass is 2
Answer:
Here
Explanation:
This is an acid-base reaction (neutralization): CaCO3 is a base, HCl is an acid.
Answer:
There are 3 significant figures on this one.