Question

You have noticed the changes in the stone tools. Similarly, can you analyse the gradual

changes in human life with the help of the chart you have completed earlier? Use the hints given

below
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Answer 1

Since the density is equal to the mass divided by the volume, so the mass will be equal to the multiplication of the density and mass. Hence, we have given the one mole of the water in the problem. =6.023×1024 electron. Hence the total number of electrons present in 18mL water is 6.023×1024.

Since the density is equal to the mass divided by the volume, so the mass will be equal to the multiplication of the density and mass. Hence, we have given the one mole of the water in the problem. =6.023×1024 electron. Hence the total number of electrons present in 18mL water is 6.023×1024.