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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.
What else can I help you with?
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 smell of isopropyl alcohol 70 percent?
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.
What percent of teenagers consider themselves to be spenders rather than savers?
About 70% of teenagers consider themselves to be spenders rather than savers.
Why should you use percent equation rather than the percent proportion?
There is no "should" or "should not". The depends on the question that you are trying to answer.
Is 1 percent greater than 025 percent?
1 percent is less than 25 percent. 1 percent is greater than 0.25 percent.
Does water and ethyl alcohol mix together or create and interface?
Water and ethyl alcohol are both polar solvents, meaning they have similar intermolecular forces and are able to mix together. When they are mixed, they form a homogeneous solution rather than creating an interface between the two liquids. This is because the polar nature of water and ethyl alcohol allows them to interact and dissolve into each other.
What floats in ethyl alcohol?
Most solids and liquids that are less dense than ethyl alcohol will float in it. Some examples include oil, wax, and certain types of plastic. However, materials that are more dense than ethyl alcohol, such as most metals, will sink in it.
Is alcohol with seventy percent rubbing a substance or a mixture?
Rubbing alcohol is not a substance because it is not pure, it is a mixture of (more than 4) compounds, one of which is ethyl alcohol, among water, isopropyl alcohol and detergent (soap)
Why boiling point of ethyl alcohol is higher as compared to dimethyl ether?
The boiling point of ethyl alcohol is higher than that of dimethyl ether because ethyl alcohol has stronger intermolecular forces (hydrogen bonding) between its molecules than dimethyl ether, which only has weaker van der Waals forces. These stronger intermolecular forces in ethyl alcohol require more energy to overcome, resulting in a higher boiling point.
What is the speed of light in ethyl alcohol?
The speed of light in a medium such as ethyl alcohol is slower than in a vacuum, but depends on the specific refractive index of the material. In ethyl alcohol, the speed of light is approximately 0.66 times the speed of light in a vacuum.
Which has a higher melting point Sodium Chloride or Ethyl Alcohol?
Sodium chloride (table salt) has a higher melting point than ethyl alcohol. Sodium chloride melts at 801°C, while ethyl alcohol melts at -114.1°C.
Will milk float in ethyl alcohol?
No, density of ethanol is round 0.8 g/mL while milk is close to 1.0 g/mL
Why it is more useful to make ethyl acetate with acetic acid and alcohol rather than using other compounds like ketene alcohol or acetamide alcohol?
The reaction between acetic acid and alcohol to produce ethyl acetate is a simple and cost-effective process. These starting materials are readily available and less hazardous compared to using ketene or acetamide, which are more complex and toxic. Additionally, the acyl substitution reaction between acetic acid and alcohol is more selective and yields higher purity of ethyl acetate.
Why glycerol is more viscous then ethyl alcohol?
Glycerol (Glycerin) contains three 'OH' groups at adjacent carbon atoms so the chances of ' hydrogen bonding' are higher than normal alcohols and such a liquid is denser than ethyl alcohol so it is more viscous.
Do ice float in alcohol?
yes it doesAnswer:It depends on the alcohol and the percent of alcohol in the solution in which the ice is placed. Ice has a density of 0.9167 g/cm³ at 0°C. As ethyl alcohol is the one most people think of, lets use it as an example. Ethyl alcohol (pure) has a density of 0.789 g/cm3 so ice would sink rather quickly. It is not until room temperature (20oC) alcohol/water solutions approach 50% that the densities of the solution would be high enough for the ice to float.
Why 40 percent alcohol cheaper than 70 percent alcohol?
Because the concentration of alcohol is lower; you pay the alcohol not the water.
What is the difference between ethyl and methyl alcohol?
Methanol, also known as methyl alcohol, is madeof molecules containing one methyl group, with a chemical structure of CH3-OH. Methanol is highly toxic if inhaled, drunk, or absorbed through the skin and can cause blindness. Ethyl alcohol is the same as ethanol or grain alcohol. I has two methyl groups and looks like CH3-CH3-OH. This is the type of alcohol found in the alcoholic beverages people consume. Both compounds are organic and are good solvents and fixatives.
