Question

2H2+O2-->2H2O, If you have 9 moles of Hydrogen gas (H2), how many moles of water can you form? (Enter just the number: not the number and units)

Answer 1

If  you  have  9   moles  of hydrogen gas(H2)  the   moles of water that  can  be formed is   9 moles

calculation

2H2  +O2→ 2H2O

 The  mole  of H2O  is calculated   using the   mole  ratio.

that  is  H2:H2O  is   2:2  into simple form = 1:1

therefore if 9 moles  of  H2  reacted the   moles of H2O  =  9 x1/1  =  9 moles