3 years ago

How many atoms does 2.0 moles of He represent

1 answer:

Rudiy273 years ago

6 0

We use the following formula to calculate the number of atoms:

n (mol) = N(number of atoms) / NA

N(He) = n(mol) · NA

N(He) = 2,0 moles · 6.02·1023 = 12.04·1023 atoms

You might be interested in

rjkz [21]

Protons .because electron has negative charge and proton has positive charge.

6 0

3 years ago

natka813 [3]

Answer:

The light is most intense where it strikes Earth _ directly_______ to its surface.

Explanation:

Hope this helps :)

3 0

3 years ago

Sidana [21]

i think it’s D , not sure though

4 0

2 years ago

Veseljchak [2.6K]

I believe the a is the correct answer is d

8 0

3 years ago

babymother [125]

Answer:

Their electrons are placed in a higher number of orbitals

Explanation:

The atomic no is 31

The configuration is given by

$\\ \sf\longmapsto 1s^22s^22p^63ss^23p^63d^{10}4s^24p^1$

$\\ \sf\longmapsto [Ar]3d^{10}4s^24p^1$

5 0

2 years ago