Question

calculate the volume at STP of
(a) 1.6mg of methane (ch4)
(b) 1/5moles of oxygen
plz answer this​

Answer 1

Answer:

1st is right

Explanation:

The molar mass of methane is 16 g/mol.

1 molecule of methane contains 5 atoms

1 mole of methane contains 6.02×10

23

molecules.

Number of atoms present in 1.6 g of methane is:

6.02×10

23

×

16g/mol

1.6g

×5=3.01×10

23

atoms.