Answer:
dumb stupid restarted illiterate STUPID students ARE JUST GOING TO DIE
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:
ACTIVITY 1
Sample 1 has a stronger taste of lemon, and is more sour.
Sample 2 has a sweeter taste, my guess is because there's more sugar:lemon juice ratio.
1.3 x 10^21 atoms Na is 4.63230769231 mol Na
4.63230769231 mol Na * 23g/mol Na = 106.543076923g