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It is a dilution by a factor of 0.729166, which is quite close to 3/4.
For a 3/4 dilution (that will give a 72% final solution, add 3 parts 96% alcohol and 1 part water. You can do this with any volume container.
For an exact dilution, add 0.729 parts alcohol and 0.271 parts water. You'll need a graduated cylinder to do this accurately.
See the Related Questions to the left for more information.
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∙ 16y ago
Anonymous
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∙ 15y agoTo make 70% alcohol from 95%, add to 70 c.c. of 95% alcohol enough water to make 95 c.c. The result will be 95 c.c. of 70 % alcohol. See "A simple method of diluting Alcohol to any desired per cent" http://www.biolbull.org/cgi/reprint/s1-1/5/245.pdf
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∙ 15y agoFirst, here is the more abstract solution. Give a little twist to the well-known formula, V1 * M1 = V2 * M2 0.95x + 0.3y = 0.7 (x+y) 95x + 30y = 70x + 70y 25x = 40y 5x = 8y x = (8/5)yNow Specific example: You are trying to make 1L of 70% ethanol solution by mixing 95% ethanol with 30% ethanol. x (95% EtOH) + y (30% EtOH) = 1000mL (1L, 70% EtOH) (8/5)y + y = 1000mL (13/5)y = 1000mL y = 385mL (approximation) x = 615mL (approximation) So you'll need to mix 615mL of 95% ethanol with 385mL 30% ethanol to get 1L of 70% ethanol.
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∙ 15y agoyou buy a bottle of 100% alcohol and drink 30% of it!
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∙ 11y agoAlcohol with high concentrations can be obtained after double or triple distillation of some cereals grains or fruits.
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∙ 11y agoAlcohol with high concentrations can be obtained after double or triple distillation of some cereals grains or fruits.
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∙ 10y agoIf you are talking about % or proof, dilute it 4 in 5 parts. eg, if you have 50ml glass, it should be 40ml 100% alcohol and 10ml mixer.
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∙ 14y agohao to prepare a 70% alcohol
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HOW MANY ML OF ETHYL ALCOHOL ARE PRESENT IN A 50 ML OF BOTTLE OF RUBBING ALCOHOL?
Usually zero ml because ethanol is not normally used in rubbing alcohol. However, there is a little Ethanol-based rubbing alcohol and rubbing alcohol is usually 70 percent, so multiply 50 ml x .7 to get your answer.
How do you diluted water?
to dilute water you have to add rubbing alcohol to it
How do rubbing alcohol used as antiseptic?
Rubbing alcohol comes in a few varieties but all can be simply wiped on a surface, or on the skin, to kill bacteria.70% isopropanol (isopropal alcohol) is the main ingredient in many hand sanitizers, and is sometimes the only ingredient - so save your money and buy a 95 cent bottle of rubbing alcohol rather than a $6.00 bottle of "hand sanitizer".Rubbing alcohol is also available as 99% isopropanol, and as 95% ethanol (ethyl alcohol).
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!)
Why 70 percent alcohol used in laboratory?
If WE Use 90% alcohol it will get evaporated, for 30% alcohol no reaction occurs as water content will be high . so, 70% is used
What is 70 percent alcohol and what is 95 percent alcohol which is better to use and why?
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.
How much 95 percent alcohol must be used to prepare 1000 ml of 70 percent alcohol?
how much 95% alcohol must be used to prepare 1000 ml of 70% alcohol
Can alcohol evaporated from mixture of waterand alcohol?
Yes, the process is known as Distillation. Works on the property that Alcohol (ethanol) and Water have different boiling points. Water boils at 100 C and Alcohol at about 60-70 C. Heating above 70 but below 95 will vaporise the alcohol, leaving Water.
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.
How do you dilute volatile oil?
alcohol
How much water is needed to make 70 percent alcohol from one gallon?
To prepare 100ml of 70% Ethanol, measure 70ml of 95% ethyl alcohol in a graduated cylinder and add 30ml of distilled water. To prepare 100ml of 70% Ethanol, measure 70ml of 95% ethyl alcohol in a graduated cylinder and add 30ml of distilled water.
What is the range of 75 80 95 75 70?
smallest number is 70 largest is 95 95-70=25=range
What is 95 plus 52 plus 70?
95 + 52 + 70 = 217
How do you reduce alcohol percentage?
Dilute it. Usually with water
The factors of 70 and 95?
Factorsf 70: 1 2 5 7 10 14 35 70 Factors of 95: 1 5 19 95 Common factors of 70 and 95: 1 and 5
HOW MANY ML OF ETHYL ALCOHOL ARE PRESENT IN A 50 ML OF BOTTLE OF RUBBING ALCOHOL?
Usually zero ml because ethanol is not normally used in rubbing alcohol. However, there is a little Ethanol-based rubbing alcohol and rubbing alcohol is usually 70 percent, so multiply 50 ml x .7 to get your answer.
How do you diluted water?
to dilute water you have to add rubbing alcohol to it
