Question

Question #8a90d

Answer 1

write a balanced equation
convert g of water to moles, convert T to Kelvin
use stoichiometry to calculate number of moles of hydrogen formed
use combined gas law or ideal gas law to solve for V

Explanation:

`2H_2O rarr2H_2 + O_2`

`(10 g H_2O)/(18.01(g/(mol)) )= 0.556mol`

Since water and hydrogen have a 1:1 molar ratio
0.556 mol of `H_2` will be formed
`PV = nRT`

`V= nRT/P`

`V= (0.556mol)(0.082057L*atm//K*mol)(305K)//0.940atm`
`V= 14.8L`