Question

W(C) =85,7%,Dh2(CxHy)=21
Срочнооооо

Answer 1

M(r) = 21 * 2 = 42 г/моль

n(C) = (85.7*42)/1200 = 3
n(H) = (14.3*42)/100 = 6

C3H6 пропен