How many grams are there in 4.50 moles of Ba(NO2)2

1.	How many grams are there in 4.50 moles of Ba(NO2)2
Answer» No of moles =4.50 molMolar mass= 137+2×14+4×16 = 229u No. of moles= Given mass/Molar mass 4.50 = w/229 4.50×229= w w= 103.5g

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