![subject](/tpl/images/cats/himiya.png)
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 01:20
1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:00
Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:00
What is the percentage of hydrogen in nitrogen trihydride
Answers: 1
![question](/tpl/images/cats/himiya.png)
You know the right answer?
The amount of lead in drinking water is 0.025 mg/l. express this concentration in molality. {molar m...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 18:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 18:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 18:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 18:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 15.12.2020 18:10
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 15.12.2020 18:10
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 18:10
![question](/tpl/images/cats/pravo.png)
Law, 15.12.2020 18:10
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 18:10
![question](/tpl/images/cats/ekonomika.png)
Business, 15.12.2020 18:10
![question](/tpl/images/cats/istoriya.png)
History, 15.12.2020 18:10
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 18:10