Question

Calculate the number of molecules in a drop of water, knowing that every drop occupies a volume of 0.05 mL.

Answer 1

@hba

Answer 2

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Answer 3

Water is H20

So what would be the atomic weight ?

Answer 4

O is 16 and H is 1

Now find for H20

Answer 5

how to calculate volume
every drop of water

Answer 6

which formula is

Answer 7

H20=1x2+16=18

Now to calculate the number of moles use


# of moles=number of l/molar mass


After calculating this

molecule=# of moles *NA(Avagardo number)

Answer 8

I am sorry if i am wrong :/

Answer 9

i dont understand how to solve...

Answer 10

how to calculate every drop...
i dont know how many drops are...

Answer 11

Here the molar mass=18

and

You have V=0.05 ml

Now convert in litre

and use the formula i provided

Answer 12

Then we would multiply that by avagardos number.

Answer 13

i try

Answer 14

0,00005 L