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20 ml of H2 and 50ml of O2 are mixed and exploded at STP. If water is the only product formed , calculate the number of molecules of water produced? |
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Answer» of H₂ reacts with 0.5 mole of O₂ to form 1 mole of H₂O. At STP, the volume is DIRECTLY proportional to moles.Since 1 mole of H₂ reacts with 0.5 mole of O₂, 20 ml of H₂ reacts with 10ML of O₂ and form 10ml of H₂O.volume of 1 mole H₂O = 22.4 l = 22400 mlnumber of moles in 10ml H₂O = NUMBER of molecules in 1 mole = number of molecules of water in 10ml = So 2.688×10²° molecules of water are produced. |
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