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How many grams are in 34.2 moles of Lithium (Li)?

Mass of Li = 237.38 g

Further explanation

The mole itself is the number of particles contained in a substance amounting to 6.02.10²³  

Known

Moles of Li = 34.2

Molar mass(MW) of Li = 6.941 g/mol

then mass of Lithium (Li) :

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