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How many liters of 10 percent alcohol solution must be mixed with 70 liters of a 70 percent solution to get a 30 percent solution?
210Type your answer here...
Why 70 percent ethyl alcohol is used rather than 90 percent or 95 percent?
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.
In what proportion should 95 percent percent alcohol be mised with 30 percent percent alcohol to make 70 percent percent?
x = volume of 95% y = volume of 30% so (x+y) is volume of 70% 0.95 x + 0.30 y = 0.70(x+y) 0.95 x + 0.30 y = 0.70x + 0.70y 0.25x = 0.40y x/y = 0.40/0.25 = 8/5 for every 8 volumes of 95% mix in 5 volumes of 30%the volumes can be ml, liters, cups, pints etc.
Can you use 70 percent alcohol on penis?
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!
Is the percent of ocean on earth 70 percent or 75 percent?
70%
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%
Why 40 percent alcohol cheaper than 70 percent alcohol?
Because the concentration of alcohol is lower; you pay the alcohol not the water.
What percent of car crashes involve alcohol?
about 70%
Is 70 percent isopropyl alcohol a mixture?
Yes, it is.
What is the Difference between 70 percent and 50 percent rubbing alcohol?
20%
What percent alcohol does firefly vodka contain?
35 percent 70 proof
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!)
How many liters of 10 percent alcohol solution must be mixed with 70 liters of a 70 percent solution to get a 30 percent solution?
210Type your answer here...
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.
What percent of teenage pregnancies occur under the influence of alcohol?
70%
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.
How much percent of alcohol in tanduay contain?
My professor said, Vino Kulafu contain 70% of alcohol.
