Ответ:
дано
m(ppa NaOH) = 100g
W(NaOH) = 0.13 = 13 %
HBr
-----------------------------
n(NaBr) - ?
m(NaOH) = m(ppa NaOH) * W(NaOH) / 100% = 100 * 13 / 100 = 13 g
NaOH + HBr-->NaBr + HOH
M(NaOH) = 40 g/mol
n(NaOH) = m(NaOH) / M(NaOH) = 13 / 40 = 0.325 mol
n(NaOH) = n(NaBr) = 0.325 mol
ответ 0.325 моль
Объяснение:
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Answers & Comments
Ответ:
дано
m(ppa NaOH) = 100g
W(NaOH) = 0.13 = 13 %
HBr
-----------------------------
n(NaBr) - ?
m(NaOH) = m(ppa NaOH) * W(NaOH) / 100% = 100 * 13 / 100 = 13 g
NaOH + HBr-->NaBr + HOH
M(NaOH) = 40 g/mol
n(NaOH) = m(NaOH) / M(NaOH) = 13 / 40 = 0.325 mol
n(NaOH) = n(NaBr) = 0.325 mol
ответ 0.325 моль
Объяснение: