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01-02-2022
Chemistry

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Ex 1) 45.2 g of Zn = _ moles Zn

Ex 2) 0.568 moles Ag = _ grams Ag

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01-02-2022

the molar mass of Zn is 65

number of mole(n)=reacting mass/molar mass
n=45.2/65
=0.70g/mol

2.the molar mass of Ag is 108

0.568=m/108
then cross multiply
m=0.568×108
m=61.3g

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