moi nguoi oi giup minh giai bai nay voi

S

suaconlonton95

cho 2,84g mot hon hop 2 ruou don chuc la dong dang ke tiep nhau tac dung vua du voi Na thu dc 4,6g chat ran va V lit H2 (dktc) xac dinh V
m tăng = 1,76 g
1H----1Na----22g
0,08 mol<---1,76g
1H------1/2H2
0,08-----0,04
=> V = 0,896l
 
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