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What is the solvent in 70 percent alcohol?
70% alcohol signifies the amount the alcohol present in 100 ml of the solution. Considering the solvent to be water, 70% alcohol contains 70ml alcohol and 30ml water. Thus, the total comes out to 70 + 30 = 100ml. That's what the "%" signifies - (out of 100!)
What fraction of 10 percent alcohol should be mixed with 70 percent alcohol to obtain 50 percent alcohol?
2/3 of 70% and 1/3 of 10%
How much 95 percent alcohol must be used to prepare 1000 ml of 70 percent alcohol?
To prepare 1000 ml of 70% alcohol solution, you would need to mix 700 ml of 95% alcohol with 300 ml of water. Starting with a base of 95% alcohol ensures that the final solution will be at least 70% alcohol.
What is the density of 70 isopropyl alcohol?
The density of 70% isopropyl alcohol is approximately 0.87 grams per milliliter at room temperature.
Why 40 percent alcohol cheaper than 70 percent alcohol?
Because the concentration of alcohol is lower; you pay the alcohol not the water.
What are the active ingredients in rubbing alcohol?
I believe it's ethyl alcohol. Also I think rubbing alcohol is 70% isopropyl alcohol and 30% water.. Hope i helped!Rubbing alcohol is a solution of 70% isopropyl alcohol (also called isopropanol or 2-propanol), and 30% Deionized water.Ethyl alcohol is something entirely different.Note that there are also different solutions of Isopropyl alcohol that can also be used for disinfecting and first aid, but Rubbing alcohol is the household name for the 70% Isopropyl alcohol solution.
How much 95 percent alcohol is required to prepare 5 L of 70 percent alcohol?
70/19 or 3.684 liters. Here's how. 5 liters of 70% alcohol contains 3.5 liters of pure alcohol. So if X equals the answer to the question, then 0.95 * X = 3.5. That means X = 3.5/0.95 or "normalizing" the fraction gives 70/19 = 3.684L.
Is 70 percent Isopropyl rubbing alcohol a heterogeneous?
No, 70% isopropyl rubbing alcohol is a homogeneous mixture because it is a uniform solution of isopropyl alcohol with water. It has the same composition throughout and its components are evenly distributed.
How many kilocalories is provided by 10 grams of pure alcohol?
Alcohol provides 7 kilocalories per gram, so 10 grams of pure alcohol would provide 70 kilocalories.
Why 70 percent alcohol is used for sterilization not 100 percent?
First of all, because technological limits mean that we can only get alcohol at a purity of about 90%. 90% alcohol is also far more expensive than 70%, so it is more cost effective to use 70%. Ignoring all of that, the main reason is that 70% alcohol works just fine and sterilizes object very well.70%alcohol is the efficient concentration to denature the protein.
How many ml of ethyl alcohol are present in ml bottle of 70 ethyl rubbing alcohol?
.
Is 70 percent isopropyl alcohol a mixture?
Yes, it is.
