Question

How many moles are there in 4.7x10^24 molecules of water

Answer 1

there are some things in molecule that you probably never heard of. it has about 500 molecules that you can think of.

Answer 2

1 molecule of ammonia contains 3 hydrogen atoms

Therefore,7.60×10^24 no.of............ 3×7.60×10^24 no.of hydrogen atoms= 2.28×10^25 no.of hydrogen atoms

Again,1 molecule of water contains 2 hydrogen atoms

Therefore,4.70×10^25 no.of …………..2×4.70×10^25 no.of hydrogen atoms

= 9.4×10^25 no.of hydrogen atoms

So,the total no.of hydrogen atoms in solution = (2.28+9.4)×10^25 = 11.68×10^25 no.of hydrogen atoms.

HOPE IT HELPS !!!