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Abdeta
Questions (1)
If 1.8×10^-4cm3 of oil spreads to form a patch of area 150cm2, calculate the number of molecules in the drop.
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Answers (1)
First 1400=2^3*5^2*7 40=2^3*5 Then we take non common one and common with the biggest power x=2^3*5^2*7 can be one answer but the question says an odd number the other possible outcome would be x=5^2*7=175,this is because 2^3 had chance to be in x and also
