Question

How many nitrogen molecules are generated when 7.7 moles of ammonia react, according to the following equation?

3PbO+2NH3→3Pb+N2+3H2O

Options are:

(a) 2.3 x 10^24

(b) 7.8 x 10^22

(c) 4.6 x 10^24

(d) 9.3 x 10^24

Answer 1

3pbotanih 3 bb 4 m+ 3 ho. from the reaction it u os served that from, 2 moles of Nib, 1 more of my is generated, 77 moles of my 1x7.7 moles of Ny is generated = 3.85 moles of me. Now, we know, 1 mole - Avogadro number of molecules. I mole = 6.023 x 1023 molecules 2 3 3.85 moles of My = 3.85*6.023 x 1623 molecules of a -2.34 10 24 molecules of m. - 2-3x1024 molecules of m are generated sig vu