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University
100 Questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
*!Раствор тиосульфата натрия не стандартизируют по бихромату калия, так как
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
*!Молярная масса эквивалента (г/моль) тиосульфата натрия, исходя из полуреакций 2S2O32- 2е - ↔ S4O62- М(Na2S2O3·5H2O)=248,19 г/моль
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
*!Молярная масса эквивалента (г/моль) дихромата калия для системы Е Сr2O72- /2Cr3+ . М(K2CrO7) = 294,06 моль/л
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
*!Прием титрования в реакции K2Cr2O7 + KI +HCI
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
*!Прием титрования при иодометрическом определении пероксида
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
*!Метод определения содержания салициловой кислоты
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
*!Титрант при броматометрическом определении содержания салициловой кислоты
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