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Calculate the number of moles for 52 g o...

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

Text Solution

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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`
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