How many moles of water can be produced from the reaction of 28 g of #C_3H_8#?
I presume you speak of a combustion reaction? All hydrocarbons combust completely to give carbon dioxide and water.........Here we gets approx.
First we need a stoichiometric equation, and this is something at which you need to be very adept. The usual rigmarole is: balance the
With an even-numbered alkane, we would need a half-integral coefficient; try it out for butane,
Back to your question..........we has............
We know that
And given the stoichiometry of the reaction, the water that arises from the combustion is
What mass of water does this molar quantity represent?