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Gabriela1005
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alfati nr de molecule din 200 grame azotat de argint

Răspuns :

Pokju8888

AgNO3

MAgNO3=108 +14+3.16=170----->1mol=170g

se transforma 200g in moli AgNO3

1 mol AgNO3---------170g

xmoli----------------------200g

x=200:170=1,17 moli AgNO3

                                             23

1mol AgNO3-----------6,023.10 molecule

1,17 moli----------------------y molec.

                        23

y=1,17.6,023.10 molecule AgNO3

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