![subject](/tpl/images/cats/User.png)
Engineering, 23.10.2019 17:30 ofmiceandkj1
Select the procedure that will not saturate a thin‑layer chromatography (tlc) developing chamber with developing solvent vapors. (a) place a paper wick (like a piece of filter paper) inside the chamber.(b) gently swirl the solvent in the chamber prior to placing the tlc plate inside.(c) add ninhydrin (a visualization technique) to the developing solvent.(d) cover the chamber.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 03.07.2019 14:10
Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 16:10
An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
Answers: 2
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
You know the right answer?
Select the procedure that will not saturate a thin‑layer chromatography (tlc) developing chamber wi...
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 30.08.2019 00:30
![question](/tpl/images/cats/en.png)
English, 30.08.2019 00:30
![question](/tpl/images/cats/istoriya.png)
History, 30.08.2019 00:30
![question](/tpl/images/cats/mat.png)
Mathematics, 30.08.2019 00:30
![question](/tpl/images/cats/istoriya.png)
History, 30.08.2019 00:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 30.08.2019 00:30
![question](/tpl/images/cats/istoriya.png)
History, 30.08.2019 00:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 30.08.2019 00:30
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 30.08.2019 00:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.08.2019 00:30