Question

Пожалуйста помогите прошу

Answer 1

Mr (P4O10) = Ar (P) * N (P) + Ar (O) * N (O) = 31 * 4 + 16 * 10 = 284;

ω (P) = N (P) * Ar (P) * 100% / Mr (P4O10) = 4 * 31 * 100% / 284 = 43,66%;

ω (O) = 100% - ω (P) = 100% - 43,66% = 56,34%;

кислотний.

Mr (CaO) = Ar (Ca) * N (Ca) + Ar (O) * N (O) = 40 * 1 + 16 * 1 = 56;

ω (Ca) = N (Ca) * Ar (Ca) * 100% / Mr (CaO) = 1 * 40 * 100% / 56 = 71,43%;

ω (O) = 100% - ω (Ca) = 100% - 71,43% = 28,57%;

основний.