Question

Calculate the number of molecules in 10 gram of ethyl alcohol

Answer 1

Answer:

Molar mass of C  

2

​  

H  

5

​  

OH = 46 g

No. of molecules present in 1 mole of C  

2

​  

H  

5

​  

OH = 6.022×10  

23

 

No. of moles of C  

2

​  

H  

5

​  

OH =  

46

46

​  

=1

So, the no. of molecules of C  

2

​  

H  

5

​  

OH present in 1 mole of C  

2

​  

H  

5

​  

OH = 1×6.022×10  

23

=6.022×10  

23

Answer 2

Explanation:

1. n.o of molecules in 10 g of ethyl alcohol=10×46×6.022×10^23
2. =27.7× 10 ki power 26