Question

Question #56b8e

Answer 1

Equation you need to use is
`v_(rms) = sqrt((3RT) / M)`
where `R = 8.31447 J mol^-1 K^-1`
`M =` the molar mass of the substance, expressed in kilograms
and `T` is temperature of the sample in Kelvin.
Inserting given values we get

`v_(rms) = sqrt((3xx8.31447xx265) / (32xx10^-3))`
`=454.5ms^-1`, rounded to one decimal place.