Question

Given the following equation:


2H2O --> 2H2 +O2


What mass of oxygen would form from 2.30 moles of water?

Question options:

25.1


36.8


25.1


39.3

Answer 1

what is to be done with the first part

are the second ones suppossed to come with labels as to what they are because two of them have the same mass

Answer 2

Answer:

36.8 g of oxygen would form from 2.30 moles of water

Explanation:

According to given balanced equation, 2 moles of water forms 1 mole of oxygen

So moles of oxygen would form from 2.30 moles of water=$\frac{1}{2}\times 2.30 moles=1.15 moles$

Molar mass of $O_{2}$ is 32 g/mol

So mass of $O_{2}$ would form=$1.15\times 32 g = 36.8 g$

hence 36.8 g of oxygen would form from 2.30 moles of water