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a) How many moles of Cu are there in 35.7 grams of Cu? b) How many MOLES...

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Chemistry

a) How many moles of Cu are there in35.7 grams of Cu?

b) How many MOLES of dinitrogentetrafluoride are present in 3.33 gramsof this compound ?

c) How many ATOMS of nitrogenare present in 3.29 grams of dinitrogentetrafluoride ?  atoms ofnitrogen .

d) How many GRAMS of fluorine arepresent in 6.41×1022 molecules ofdinitrogen tetrafluoride ?  

e) How many GRAMS of dinitrogentetrafluoride are present in 1.98 molesof this compound ?   

Answer & Explanation Solved by verified expert
4.1 Ratings (703 Votes)
a Molar mass of Cu 6355 gmol massCu 357 g use number of mol of Cu n mass of Cumolar mass of Cu 357 g6355 gmol 05618 mol Answer 0562 mol b Molar mass of N2F4 MM 2MMN 4MMF 21401 4190 10402 gmol massN2F4 333 g use number of mol of N2F4 n mass of    See Answer
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