plz answer all my questions correctly I will mark you as BRAINLIEST.....!!!
hrudhika plz answer all these correctly before 3pm
and Q3 also which I alredy posted....!!!
plzzzzz....!!
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Answer: percentage of CU = mass of CU/ mass of brass
= (63.5/ 321.42)×100
=.197×100
=19.7
brass ~ HNO3
321.4g ~ 63 g
5 g~ x
x=63×5/321.4
= 1g
1g HNO3 is needed
321.4 g brass ~ 80 g NH4NO3
5 g brass ~ x
x= 80×5/321.42
=1.24 g
1.24 g NH4NO3 is formed
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Answer:
this was yester days assignment why did you ask it now
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