Answer to Question #143940 in General Chemistry for Jennifer

Question

How many moles of water would be produce from 32 grams of oxygen in 2 H2+O2->2H2O

Answer 1

From the equation,

$2H_2O+O_2\to 2H_2O$

$2$ moles of Hydrogen and $1$ mole of Oxygen produce $2$ moles of water

In finding the moles of water, we have to find the moles of Oxygen in $32g$ of Oxygen.

Molar mass of $O_2=16.0g/mol$

Moles of $O_2=$ $32g\over 16.0g/mol$ $=2.0moles O_2$

Molar mass of

Moles of $H_2O=$ $2.0moles H_2O\times$ $2moles H_2O\over 1mol O_2$ $=4.0moles H_2O$