210Type your answer here...
70% alcohol has been found to be more effective in killing microbes.Higher and lower concentration may not be as effective.90% alcohol coagulate proteins in contact.suppose 90% alcohol is poured over one celled organism,the alcohol penetrate the cellwall of the organism.the coagulated protein would then prevent the alcohol further from the cell and no more coagulation then take place.now,if 70% alcohol is added into one celled organism.The diluted alcohol also coagulates the protein, but at a slower rate,so that it penetrates all the cell before coagulation.Then all the cell coagulated and the organism died.
I personally just put some 65% ethyl alcohol hand sanitizer on mine, and it burnt really bad for a minute or two. 70% probably won't kill you. Feelin' so fresh!
70% alcohol means in hundred parts of it, 70 parts are pure alcohol, rest is water. 95% means 95 parts of pure alcohol in 100 parts, so 5 parts of water. It depends on the usage. As a solvent, 95% would be preferred. As antiseptic, both can be used, 75% being more common as medicinal spirit. For consumption, fairly dilute concentrations are preferred. Above 43% are rare so both the above concentrations are dangerous for consumption.
Isopropyl alcohol has a rather strong alcohol smell. If you were to smell regular alcohol and smell 70% Isopropyl alcohol you would have the same smell. However, there is no general way to explain it other than a strong bitter and sometimes sweet smell. It depends on solely your olfactory membranes. Smell's are after all different to everyone.
2/3 of 70% and 1/3 of 10%
Because the concentration of alcohol is lower; you pay the alcohol not the water.
Yes, it is.
about 70%
35 percent 70 proof
20%
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!)
210Type your answer here...
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.
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.
70%
My professor said, Vino Kulafu contain 70% of alcohol.