Question

please find the molecular mass of the following u​

Answer 1

Explanation:

there is no difference in the value of molecular mass in grams or in u

difference is the amount which is being measured

molecular mass in grams is the weight of 1 mole i.e Na no. of molecules (Na is avagadros number)

and molecular mass in u is the weight of 1 molecule

a. NH₃=(14)+3(1)=17u

b. CH₃COOH=(12)+3(1)+(12)+(16)+(16)+1=60u

c.C₂H₅OH=2(12)+5(1)+16+1=46u

hope it helps u

Answer 2

Answer:

1. NH3

   1x14+3x1

   14+3=17u

2.CH3COOH

      1x12+3x1+1x12+1x16+1x16+1x1

     12+3+12+16+16+1=60u

3.C2H5OH

       2x12+5x1+1x16+1x1

       24+5+16+1=46u

Explanation: