No prob...but note that this ans is correct only if whatever you typed after that full stop has a value of 1. ;)
Ok..coming to the point
0.05 ml is nothing but 0.05g (because density of water is 1g/cc or 1g/ml)
number of moles=0.05/18 (say x)
number of molecules= x * 6*1023
This is the answer
you can calculate it urself
just joking...
final ans: 0.0167*1023 (pls cross check)
PLS APPROVE
THANK YOU