
аналитика блок 4.2,4.1
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KG
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Объём отстойника должен быть во сколько раз больше теоретически рассчитанного значения?
1.5 раза
2.5 есе
3.5 есе
3.0 раза
4.0 раза
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Рекомендуемая масса гравиметрической формы для кристаллического осадка, г
0.01
0.1
0.5
1.0
10.0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Рекомендуемая масса гравиметрической формы для аморфных осадков (г).
0.01-0.03
0.1-0.3
0.5-0.7
1.0-3.0
10.0-12.0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Чему равна грамм-эквивалентная масса ортофосфорной кислоты (М(H₃PO₄) = 98 г/моль)?
32.7
98
49
9.8
4.9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Сколько воды нужно добавить в 100 мл 0,6 Н раствора HCl, чтобы приготовить 0,3 Н раствор?
300 мл
100 мл
400 мл
200 мл
500 мл
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Сколько мл 0,025 Н раствора NaOH нужно для нейтрализации 100 мл 0,05 Н раствора HCl?
200 мл
20 мл
100 мл
5мл
150 мл
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Если молярная концентрация эквивалента NaOH равна 0,01 Н, какой будет титр раствора?
М (NaOH) = 40 г/моль.
0.0004 моль/л
4000 мл/л
0.0040 моль/л
0.0400 моль/л
0.4000 моль/ л
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