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Why 70 percent of alcohol kills bacteria not 90 percent or less or more?
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Which has more alcohol in it a solution of one percent by volume or one percent by weight?
One percent by weight. Alcohol has a density of less than water, so 1 g of alcohol is more than 1 mL.
When patterning a shotgun what is a sufficient percentage of pellets within a inch circle?
60 to 80 percent to make clean, ethical kills , anything less than 50 percent is unethical and may not kill the animal it may just run away and suffer
Why is alcohol 70 percent?
Isopropyl rubbing alcohol is usually around 70% (by volume) because this is the optimum concentration for its action as a disinfectant. At lower concentrations it is not as effective. However at higher concentrations its effectiveness declines because of the way in which it works. Alcohol kills cells in the target organisms by causing the coagulation of proteins which it contacts. If very strong alcohol is used then it penetrates the cell wall of the organism and coagulates the proteins which are immediately inside the cell wall and this mass of coagulated protein protects the inner parts of the cell from the alcohol. Then, if conditions improve, the cell can recover. Alcohol which is less concentrated works in the same way but because it coagulates the proteins more slowly, more of the alcohol is able to penetrate deeper into the cell and so is more effective in destroying the cell.
What is the difference of 50 percent less 46.67 percent?
50% less 46.67% = 3.33%
What is 10 percent less of125?
10 percent less of 125 is 112.5.
What percent of bacteria caus disease?
less than 1 percent
Can Copper nitrate be used to kill algae in pool water?
3% or less copper. Silver kills bacteria, Copper kills algae
Why is pure alcohol more dangerous than adulterated alcohol?
Pure alcohol is far more dangerous than adulterated alcohol because pure alcohol has one hundred percent alcohol in comparison to aldulterated alcohol which is less than 100 percent.
Which has more alcohol in it a solution of one percent by volume or one percent by weight?
One percent by weight. Alcohol has a density of less than water, so 1 g of alcohol is more than 1 mL.
What is the percent of alcohol in rock and rye?
Most whiskeys (rye) are 86 proof. Percent is half that so they are 43% alcohol. When mixed with anything in a drink they become diluted -- less alcohol %
Is it safe to put rubbing alcohol on a small open wound?
YesBut it will hurt like hell. Rubbing alcohol will dehydrate the tissue around the wound and stretch it besides which can sometimes slow healing. If available, hydrogen peroxide makes for a better clensing agent. Edit: Betadine (Povidone Iodine) is another - less painful - alternative.
Why 100 percent alcohol doesn't kills bacteria?
Probably because 100% alcohol is very flammable, truly an explosion hazard, hard to keep from evaporating, and lower concentrations will do the job.The alcohols used in the medical disinfection role are about 70% of either ethyl alcohol, iso-propyl alcohol, or maybe a mixture. Also known as "rubbing alcohol". Its VERY poisonous, not only to bacteria. Used for wiping needles medical instruments, etc as a fast way of sterilizing. Some combination of alcholols are delivered in evaporating gels to make a hand wipe that visitors to hospitals can use.Also disinfecting is "de-natured" or industrial alcohol, which is a mixture of ethanol with 10% methanol, and almost no water. The industrial type is stained purple, and includes a foul tasting disinfectant emetic to discourage drinking it (because methanol is toxic causing blindness, insanity and death). The lab type is clear, smells of vodka, and is just as toxic! It will sterilize medical equipment.
Why is 70 percent isopropyl alcohol more expansive than 40 percent isopropyl alcohol?
It is difficult and expensive to refine anything to 100% purity. Best to use 70% as it is just as effective and cost a whole lot less.
Does miller 64 have less alchol than other beers?
Yes, it has much less alcohol, only 2.8 percent.
Does salt sanitize?
The sodium and chloride make cells unable to function. This kills bacteria, which are much less able to handle the effects, but not body cells that can.
How does salt sanitize?
The sodium and chloride make cells unable to function. This kills bacteria, which are much less able to handle the effects, but not body cells that can.
If i add 40 percent alcohol plus 7 percent alcohol is it more alcohol?
More than what The final alcohol content would be somewhere between 40% and 7% alcohol by volume depending on how much of each you have. To answer the question, the resulting solution would be less alcoholic than the 40% and more alcoholic than the 7%.
