дано
m(NaOH) = 90 g
m(H2SO4) = 98 g
m(Na2SO4) - ?
M(NaOH) = 40 g/mol
M(H2SO4) = 98 g/mol
n(NaOH) = m/M = 90 / 40 = 2.25 mol
n(H2SO4) = m/M = 98/98 = 1 mol
n(NaOH) > n(H2SO4)
2NaOH + H2SO4-->Na2SO4+2H2O
n(H2SO4) = n(Na2SO4) = 1 mol
M(Na2SO4) = 160 g/mol
m(Na2SO4) = n*M = 1*160 = 160 g
ответ 160 гр
Объяснение:
дано
m(NaOH) = 90 g
m(H2SO4) = 98 g
m(Na2SO4) - ?
M(NaOH) = 40 g/mol
M(H2SO4) = 98 g/mol
n(NaOH) = m/M = 90 / 40 = 2.25 mol
n(H2SO4) = m/M = 98/98 = 1 mol
n(NaOH) > n(H2SO4)
2NaOH + H2SO4-->Na2SO4+2H2O
n(H2SO4) = n(Na2SO4) = 1 mol
M(Na2SO4) = 160 g/mol
m(Na2SO4) = n*M = 1*160 = 160 g
ответ 160 гр
Объяснение: