How many atoms are in 3CH4?

Answer 1

The Chemical equation tells you 3CH4

the first 3 tell you that there are 3 molecules of CH4

CH4 has 1 Carbon and 4 hydrogen (it is called methane) making a total of 5 atoms

and there are 3 of them

so there is a total of 15 atoms.

EDIT (by Dr.J.): Not correct. If there are 3 moles as stated, each mole contains 6.02x10^23 molecules and each MOLECULE contains 5 atoms, so the CORRECT answer is (15)(6.02x10^23) = 9x10^24 atoms

Answer 2

3 moles CH4, and each mole contains 6.02x10^23 molecules and each molecule contains 5 atoms, so there are 5 atoms/molecule x 6.02x10^23 molecules/mole x 3 moles = 9x10^24 atoms

Answer 3

3 carbon atoms and 12 hydrogen=15 atom

Answer 4

How many total atoms are in 3CH4

Answer 5

14