1.

Calculate the number of moles for 52 g of He (finding mole from mass)

Answer»

SOLUTION :No. of MOLES = n
Given MASS = m
Molar mass = M
Given number of PARTICLES = N
Avagadro number of particles = `N_(0)`
Atomic mass of He = 4 u
Molar mass of He = 4 g
Thus , the number of moles = `("given mass")/("molar mass")`
`implies n = (m)/(M) = (52)/(4) = 13`


Discussion

No Comment Found

Related InterviewSolutions