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Newbie

Joined: 19 Jun 2018
Posts: 2

# mass balance

https://www.webqc.org/balance.php?reaction=C7H13NO2%2BClH4NO%2BHKO%3DC7H14N2O2%2BKCl%2BH2O

why do not equal the input (moles) with the output(moles) in the material balance?

Distinguished Member

Joined: 27 Sep 2017
Posts: 287
Location: Berlin, Germany
 dont know what you mean. The equation is balanced. But what ever the compunds be are. What is ClH4NO for example. Ammonium hypo chlorite NH4OCl or Hydroxylamin hydro chloride NH2OH*HCl?

Newbie

Joined: 19 Jun 2018
Posts: 2
 ClH4NO is Hydroxylamine hydrochloride I have simulated a stoichiometry calculation giving a value for the weight of a component, after which the program calculated the weight and moles for the rest of the components. According to the mass balance, the mass and moles of the input materials must be equal to the mass and moles of the output materials, but in my case the moles of input materials differs from the moles of outgoing substances. Why?

Distinguished Member

Joined: 27 Sep 2017
Posts: 287
Location: Berlin, Germany
 I would calculate it by manual again. Probably a problem of the program. But only the sum of the mass should be equal on both sides. The moles can differ. Example 3 H2 + N2 => 2 NH3 On the left side you have 4 mol, but on the right side only 2 mol. Mass 3 *2 g/mol + 28 g/mol = 34 g/mol = 2 *17 g/mol equal 34 g/mol both sides.
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