Answer:
Step-by-step explanation:
C₂E₁₀H₁₂ = 144
molecular weight of given compound
= 2 x 12 + 10 x E + 12 x 1 = 144 ( atomic weight of C = 12 , H = 1 , E = E )
24 + 10 E + 12 = 144
10 E = 108
E = 10.8
Atomic mass of E = 10.8 u .
7.8m questions
10.5m answers