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trushinakristina0987
@trushinakristina0987
August 2021
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определита кол-в вещ. в 14.2 гр. сульфата натрия
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LissaAlissaa
N = m/M
M(Na2SO4) = 23*2 + 32 + 16*4 = 142 г/моль
n(Na2SO4) = 14,2 г / 142 г/моль = 0,1 моль
Ответ: n(Na2SO4) = 0,1 моль
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Answers & Comments
M(Na2SO4) = 23*2 + 32 + 16*4 = 142 г/моль
n(Na2SO4) = 14,2 г / 142 г/моль = 0,1 моль
Ответ: n(Na2SO4) = 0,1 моль