Реакция вида: MgCl2 + 2AgNO3 = 2AgCl + Mg(NO3)2 сокращенная ионная молекулярная электронная полная йонна

1.

дано

m(NH2-CH(CL)-COOH) = 219 г

V(CL2)-?

NH2- CH2-COOH+CL2-->NH2-CH(CL) - COOH+HCL

M(NH2-CH(CL)-COOH) = 109.5 g/mol

n(NH2-CH(CL)-COOH) = m/M = 219 / 109.5  = 2 mol

n(NH2-CH(CL)-COOH) = n(CL2) = 2 mol

V(CL2) = n*Vm = 2* 22.4 = 44.8 L

ответ 44.8 л

2.

дано

m(C17H35COOH) =  5 kg

m(C17H35COOK)-?

C17H35COOH+KOH-->C17H35COOK+H2O

M(C17H35COOH) = 284 kg / kmol

n(C17H35COOH) = m/M = 5 / 284 = 0.0176 mol

n(C17H35COOH) = n(C17H35COOK) = 0.0176 mol

M(C17H35COOK) = 322 kg / kmol

m(C17H35COOK) = n*M = 0.0176 * 322 = 5.67  kg

ответ 5.67 кг

3.

дано

m(C6H2NH2Br3) = 75 g

m(C6H5NH2)-?

C6H5NH2+3Br2-->C6H2NH2Br3 + 3HBr

M(C6H2NH2Br3) = 330 g/mol

n(C6H2NH2Br3) = m/M = 75 / 330 = 0.227 mol

n(C6H5NH2)= n(C6H2NH2Br3) = 0.227 mol

M(C6H5NH2) = 93 g/mol

m(C6H5NH2)  = n*M = 0.227 * 93 = 21.1 g

ответ 21.1 г

Объяснение: