1.

How many electrons are present in 18mL of water?

Answer»

Solution :18mL WATER=18g water=1 mole water=`6.02xx10^(23)`
MOLECULES, each molecule consists 10 electrons (8 electrons per oxygen atom, 2 electrons for TWO hydrogen atoms). TOTAL electrons `=10xx6.02xx10^(23)=6.02xx10^(24)`.


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