Ответы на вопрос:
Ch4+cl2--> ch3cl+hcl 2ch3cl+2na--> c2h6+2nacl c2h6+cl2--> c2h5cl+hcl c2h5cl+ch3cl+2na--> c3h8+2nacl c3h8+cl2--> c3h7cl+hcl 2c3h7cl+2na--> c6h14+2nacl c6h14--> c6h6+4h2 c6h6+cl2--> c6h5cl+hcl c6h5cl+naoh--> c6h5oh+nacl c6h5oh+3hno3--> c6h2(no2)3oh+3h2o
H2SO4 + 2KOH —> K2SO4 + 2H2O
n = m / Mr
Mr ( KOH ) = 39 + 16 + 1 = 46
n ( KOH ) = 100 / 46 = 2,17 моль
n ( H2SO4 ) = 2,17 : 2 = 1,08 моль
m = n • Mr
Mr ( H2SO4 ) = 1 • 2 + 32 + 16 • 4 = 98
m ( H2SO4 ) = 1,08 • 98 = 106 г
n = m / Mr
Mr ( KOH ) = 39 + 16 + 1 = 46
n ( KOH ) = 100 / 46 = 2,17 моль
n ( H2SO4 ) = 2,17 : 2 = 1,08 моль
m = n • Mr
Mr ( H2SO4 ) = 1 • 2 + 32 + 16 • 4 = 98
m ( H2SO4 ) = 1,08 • 98 = 106 г
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