Ответ:

дано

m(NaOH) =  4 g

+HCL

--------------------

m(NaCL)-?

m(H2O)-?

NaOH+HCL-->NaCL+H2O

M(NaOH) = 40 g/mol

n(NaOH) = m/M = 4 / 40 = 0.1 mol

n(NaOH) = n(NaCL) = n(H2O) = 0.1 mol

M(NaCL) = 58.5 g/mol

m(NaCL) = n*M = 0.1 * 58.5 = 5.85 g

M(H2O) = 18 g/mol

m(H2O) = n*M = 0.1 * 18 = 1.8 г

ответ 5.85 г , 1.8  г

Объяснение: