How many molecules of `H_(2)SO_(4)` are there in a 49g sample?

How many molecules of water are there in 36g water?

H_2SO_4 is

Solve the following examples: How many molecules of water are there in 1 g of wate (H_2 O) ?

How many molecules of NADH_2 are produced in a single turn of the Kreb' s cycle? Name the steps where it is/they are produced.

How many molecules of FADH_2 are produced in a single turn of the Kreb's cylce? Name the steps where it is/they are produced.

How many molecules of ATP are required to fix one molecule of nitrogen?

How many molecules are present in one gram of hydrogen gas?

The valencies of the atom H,O and N are 1, 2 and 3 respectively . The molecular formulae of these gaseous elements are H_2 , O_2 and N_2 respectively. How many chemical bonds are there in each of these molecules ?

How many atoms of C,H and O are respectivley present in a molecule of glucose?

How many molecules of water would be required to release six molecules of oxygen during light reaction?