Question

plz answer fast I will give brainlist​

Answer 1

1 ) 162 grams

2) see attached image

3 ) We know that : <br>

6.022 xx 10^(23)

atoms of helium

=1

mole <br> So,

9.033 xx 10^(24)

atoms of helium

= (1)/(6.022 xx 10^(23)) xx 9.033 xx 10^(24)

<br>

= 15

moles ,

15 mole) <br> Thus,

9.033 xx 10^(24)

atoms of helium are

15

moles of atoms.

Last question seems to be blur ... sorry