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cate grame reprezinta 1.5 moli de H2O
Helllp dau coroana


Răspuns :

H20
M H2O = 2× AH +A O = 2×1+16 =2+16 =18 (18 g/mol
1mol....... 18 g
1,5 moli...... X g
1/1,5= 18/x=>x= 1,5×18 /1= 27 g H2O