Question

1. Calculate the number of moles for the
following:
(i) 52 g of He (finding mole from
mass)
(11) 12.044 x 102 number of He atoms
(finding mole from number of
particles ​

Answer 1

Answer:

1 mole oh He is 4g

Mass is 52g

So Mole is Mass/Molar Mass

So 52/4 s equal to 13 moles

Answer 2

Explanation:

1 mole he=4g

Mass=52g

number of moles=mass÷moles of element

=52÷4=13