Dashi run run run
na na na na na na
dashi run run run
na na na na na ...
![subject](/tpl/images/cats/himiya.png)
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:40
Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:40
Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.03.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 01.03.2021 14:00
![question](/tpl/images/cats/mkx.png)
Arts, 01.03.2021 14:00
![question](/tpl/images/cats/en.png)
English, 01.03.2021 14:00
![question](/tpl/images/cats/biologiya.png)
Biology, 01.03.2021 14:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.03.2021 14:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
English, 01.03.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 01.03.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 01.03.2021 14:00
![question](/tpl/images/cats/en.png)
English, 01.03.2021 14:00
![question](/tpl/images/cats/biologiya.png)
Biology, 01.03.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.03.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.03.2021 14:00
![question](/tpl/images/cats/en.png)
English, 01.03.2021 14:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.03.2021 14:00