If from 10 moles NH3 and 5 moles of H2S04,all the H-atoms are removed in order to form H2 gas,then find the number of H2 molecules formed.
Pls tell me how to solve this? I am unable to get the right answer.
To find the number of H2 molecules formed when all the H-atoms are removed from NH3 and H2SO4, we need to first determine the limiting reactant.
1. Calculate the number of moles of H2 in NH3:
NH3 contains three moles of H2 per mole of NH3.
Therefore, the number of moles of H2 in NH3 is 3 moles.
2. Calculate the number of moles of H2 in H2SO4:
H2SO4 contains zero moles of H2 per mole of H2SO4.
Therefore, the number of moles of H2 in H2SO4 is 0 moles.
3. Compare the moles of H2 in NH3 and H2SO4 to identify the limiting reactant:
Since the number of moles of H2 in NH3 is greater than the number of moles of H2 in H2SO4, NH3 is in excess, and H2SO4 is the limiting reactant.
4. Calculate the number of moles of H2 molecules formed from H2SO4:
H2SO4 contains two moles of H atoms per mole of H2SO4.
Therefore, the number of moles of H2 molecules formed from H2SO4 is 2 moles.
5. Convert the moles of H2 molecules to the number of molecules:
One mole of any substance contains Avogadro's number (6.022 x 10^23) of molecules.
Therefore, the number of H2 molecules formed from H2SO4 is 2 * Avogadro's number.
Final Answer:
The number of H2 molecules formed when all the H-atoms are removed from NH3 and H2SO4 is 2 * Avogadro's number.