Question

Find no. of electron in one cup of water of 250 ml (8.36 x 1025)​

Answer 1

Answer:

as density of water is 1g pet ml so water is equal to 250 gram

then moles=250÷18 =13.89

Now electron in water molecule=10

so no of electron in one mole=10×6.023×10`23

so no of electrons in 13.89 moles=13.89×10×6.023×10'23

Answer 2

Answer:

HERE IS YOUR ANSWER BRO

Explanation:

LET US CONSIDER 1CUP =250ML = 250 GRAM .

WE KNOW THAT DENSITY OF WATER =1gm / ccwhich is 1gm /(ml)square

ALSO WE KNOW THE FORMULA OF WATER IS H2O .

HENCE , 18 GRAM OF WATER , CONTAINS 8 ELECTRON AND 8 PROTON .

so the number of proton and electron in 250g of water is

=(250×8)/18= 111

THEREFORE, 111 NUMBER OF ELECTRON AND 111 NUMBER OF PROTON IN 250 ml OF WATER

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