cati atomi de hidrogen se gasesc in fiecare din cantitatile de mai sus? 10 g H2O 20g NH3 10g HCL
Răspunsuri la întrebare
10g H2O MH20=2+16=18
nr. atomi H 18g H2O-------1 mol H2O
10 g H2O-------X
X=10:18=0,55 moli H2O
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1molH2O---------2.6,023 .10 atomi H
0,55 moli h2o----------y atomi H
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Y=0,55.2.6,023 .10 =6,6253.10 atomi H
20g NH3 MNH3=14+3=17
nr. atomi 17 g NH3---------1mol NH3
20 gNH3--------X
X=20:17=1,17 moli NH3
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1mol NH3-------------3.6,023.10 atomi H
1,17 moli NH3-----------Y
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Y=1,17.3.6,023.10 atomi H
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Y=21,14073.10 atomi H
10 g HCl MHCl=1+35,5=36,5
nr.atomi H 36,5 g HCl-----------1mol HCl
10gHCl---------------x
x=10:36,5=0,27 moli HCl
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1mol HCl--------------6,023 .10 atomi H
0,27 moli HCl-----------y
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y=0,27.6,023.10 atomi H
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y=1,62621.10 atomi H