Well, darling, you can't make 90% ethanol from 100% ethanol because, sweetie, 100% means it's already pure ethanol. You can dilute it with a calculated amount of water to get to 90%, but you ain't changing that 100% ethanol into something else. So, mix it up with water like a fancy cocktail and voilà, you've got yourself some 90% ethanol.
No, it is not possible to achieve absolute alcohol (100% ethanol) through fractional distillation of a 90% ethanol solution. Fractional distillation can only separate the components present in the solution, not create new ones. To obtain absolute alcohol, additional methods such as azeotropic distillation or molecular sieves are needed.
most "absolute" ethanol used in the lab is 95% ethanol by volume,this is due to the fact the ethanol is very miscible with water so its difficult to remove all the water that is present in the atmosphere,it is possible to get 100 alcohol but it is an awkward process and generally 95 does the job just fine
A mixture of ethanol and gasoline is called gasohol or E10. Gasohol typically contains 10% ethanol and 90% gasoline. It is used as a fuel for vehicles that can run on ethanol blends.
Ethylene glycol and hexane is not a homogeneous mixture. This is because hexane cannot interact with ethylene glycol due to lack of dipoles.
To make a percent sucrose solution, dissolve a specific weight of sucrose in a specific volume of water. For example, to make a 10% sucrose solution, dissolve 10 grams of sucrose in 90 mL of water. The formula to calculate the amount of sucrose needed is: (percent sucrose/100) x volume of solution = weight of sucrose (in grams).
It is: 90%
5.75 lbs
Percent means out of 100: → 90% = 90/100 = 90 ÷ 100 = 0.9
90 percent of 100 is 90
no 9 percent 90 over 100 is 90%
90 percent out of 100 percent = 9/10 or 0.990%/100% = 9/10 or 0.9
90/100 = 90%
100 percent is 725.59 90 percent is 653.031
90 percent of 31.5 is 28.35 31.5 x 90/100 =2835/100 = 28.35
90% = 90/100 or 9/10 in fraction
190 100 x 0.90 = 90 100 + 90 = 190
0.5845842 or 58.45842%