Question

w(C)=82,76% D(возд.)=2 CxHy-?

Answer 1

Ответ:

дано

W(C) = 82.76% = 0.8276

D(возд) = 2

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CxHy - ?

W(H)  = 1 - 0.826 = 0.1724

M(CxHy) = 2*29 = 58 g/mol

CxHy / M(CxHy) = W(C) / Ar(C) : W(H) / Ar(H)

CxHy / 58 = 0.8276 / 12 : 0.1724 / 1

CxHy = 4 : 10

C4H10

ответ: C4H10

Объяснение: