Question

calculate the molecular mass of the following in u
(a)NH³ (b)CH³COOH (c)C²H5OH
​

Answer 1

NH3

14+1*3

=14+3

=17

CH3COOH

12+1*3+12+16+16+1

=24+32+4

=60

C2H5OH

12*2+1*5+16+1

=24+6+16

=24+22

=46