Asked in Chemistry
Is anhydrous isopropanol the same thing as isopropanol?
Yes, both isopropanol and anhydrous isopropanol are forms of rubbing alcohol. ...
Asked in Biology, Chemistry, Genetics
Why do you use ice cold isopropanol in DNA extraction?
DNA is insoluble in isopropanol and therefore, it is ideal for DNA extraction because it allows the DNA to precipitate. The isopropanol is also ice cold because it helps keep the DNA in shape so that it can be readily observed. ...
Asked in Organic Chemistry, Chemistry, Chemical Bonding
How does isopropanol differ in polarity from water?
yes isopropanol is non polar while water is polar yes isopropanol is non polar while water is polar ...
Asked in Biology, Genetics, Biotechnology
What is the function of isopropanol in DNA extraction?
To concentrate or purify the DNA, which is insoluble in isopropanol. Once the solution containing your DNA is placed in isopropanol and centrifuged, the DNA will precipitate to a little pellet at the bottom of your tube. Everything else in your tube is soluble in isopropanol and will remain in liquid form. Pipet the liquid out and now you have just DNA. ...
Asked in Biotechnology, Biochemistry, Molecular Biology
What is preferred in DNA extraction ethanol or isopropanol and why?
Isopropanol is more preferred than ethanol in DNA extraction, as isopropanol facilitates precipitation more better, as it possess very less i.e., 0.6 to 0.7 volumes of alcohol. ...
Asked in Chemistry
What is the solute and what is the solvent in the solution called rubbing alcohol?
The convention is that you call the solvent that which there is more of in the solution. If you have 70% isopropanol (rubbing alcohol), that is going to be 30% water. The alcohol would be the solvent. ...
What are the Ingredients for green rubbing alcohol?
Rubbing alcohol contains two ingredients. One is isopropanol (also called isopropyl alcohol or propan-2-ol), which has C3H7OH as its chemical formula. The other ingredient is water. The rubbing alcohol sold in pharmacies is typically 70% isopropanol by mass and 30% water. It also comes as a 91% isopropanol. The 70% is actually a better disinfectant. Ethyl alcohol is also available as a rubbing alcohol, and is a smaller molecule than isopropanol. Also note that rubbing alcohol that is bought over the counter, especially...
Asked in Chemistry
Is anhydrous isopropanol the same thing as anhydrous isopropyl?
Both Anhydrous Isopropanol and Anhydrous Isopropyl are the same thing. The name varies as to the company distributing them. ...
Asked in Math and Arithmetic, Algebra, Trigonometry
What is the exact value of cos 70 degrees?
The exact value is an irrational number, and can't be written on paper with digits. 0.34202 is less than 0.000042 percent wrong. Cos(70 deg) is an irrational number and it is impossible to give its exact value. ...
How does 70 isopropanol works on bacteria?
Here is a great website to check out for more description about how alcohols kill bacteria... http://www.byedr.com/medicine/4075-byedr-1.html Basically, the alcohol causes the proteins of the bacteria to denature and coagulate. This is a lethal event. Interestingly, solutions that are mixed with water (ie 60-70% isopropanol or ethanol) are more effective at killing bacteria that 100% alcohol. This is because the water helps the alcohol permeate into the bacteria better where it can do it's killing action... ...
How do you separate isopropanol from a water-ethanol-isopropanol-solution?
One could try dimethyl- or diethyl-ether but it won't give a 'total' separation, only fractional: more isoprpanol than ethanol is extracted. Ether can be evaporated after this, and-or the whole procedure can be repeated. ...