how many molecules are present in 1 drop of water . Given that molecules of one drop of water =0.05ml and density =1g/cc
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Answered by
5
it is 1.67*10^21 molecules,not gram
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saswat156:
sis u give the question and i will answer it after some time
till then good bye
i have that question in my profile its a cbemistry question and i have got no answer gor it. and i need ylur help now not.....
no i mean its quite complicated
u have only mentioned 55% what is that 55%
55%by mass
thanks
that is the mass of sugar
ok let me see
:)
Answered by
18
Density = mass / volume
1 cc = 1 ml
Hence 0.05 ml = 0.05 cc
Density = 1 g/cc
1 g/cc = mass / 0.05 cc
= > mass = 0.05 g
Water has gram mass of ( 2 + 16 ) = 18 g
18 g contains 6.023 × 10²³ molecules .
1 g contains 6.023/18 × 10²³ molecules
1 g contains 0.3346 × 10²³ molecules
0.05 g contains 0.3346 * 0.05 × 10²³
= 0.0167 × 10²³ molecules
The number of molecules is 1.67 × 10²¹.
hey jishu it cant be more that 1 mole
yeah cuz 1 mole contains only 6.022 ×1023
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