Oh, dude, preparing 80% ethanol is like making a mediocre cocktail. You just mix 80 parts ethanol with 20 parts water. It's not rocket science, but hey, close enough for government work, right? Just don't drink it thinking it's a fancy cocktail - trust me, that's a party foul waiting to happen.
To prepare 95% ethanol from absolute ethanol, you would need to dilute the absolute ethanol with a calculated amount of distilled water. Since absolute ethanol is 100% pure, you can use the formula C1V1 = C2V2, where C1 is the initial concentration (100%), V1 is the volume of absolute ethanol, C2 is the desired concentration (95%), and V2 is the final volume of the diluted solution. By rearranging the formula and solving for V1, you can determine the volume of absolute ethanol needed to achieve a 95% ethanol solution when mixed with water.
400 gallons of gasoline with 8% ethanol must be added to the 2000 gallons of gas with no ethanol to achieve a mixture that is 4% ethanol. This is because in the final mixture, the quantity of ethanol is the average of the ethanol content in the two types of gasoline.
To prepare a 0.2 millimolar (mM) DPPH solution in ethanol, you need to dissolve 0.2 millimoles of DPPH in a final volume of 1 liter of ethanol. First, calculate the molecular weight of DPPH (usually around 394.33 g/mol) to determine the mass needed to dissolve in ethanol. Then add this mass of DPPH to ethanol and make up the volume to 1 liter.
The total volume of the solution is 48 mL + 144 mL = 192 mL. The percent by volume of ethanol is calculated as (volume of ethanol / total volume of solution) * 100%. Plugging in the values, we get (48 mL / 192 mL) * 100% = 25%. So, the solution contains 25% ethanol by volume.
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.
30 ml of ethanol to 70ml of distilled water.
150 ml ethanol to 350 ml distilled water
To increase the concentration of ethanol from 80% to 100%, you can use a process called distillation. By distilling the 80% ethanol solution, you can separate the ethanol from the water and other impurities, resulting in a higher concentration of ethanol.
1. Extract 959,6 mL from the 99 % solution. 2. Add 40,4 mL water.
Find the volume of the 100% ethanol Add 1/19 of water to the volume (if it is like 190ml, add 10ml of water since 190/200=95%)
Absolutely, recent painstaking scientific research has showed that 70% ethanol is the same as 70% ethanol.
to save the ethanol
Mix 1.6 L of 180 proof ethanol with 3.4L of H2O
To prepare 95% ethanol from absolute ethanol, you would need to dilute the absolute ethanol with a calculated amount of distilled water. Since absolute ethanol is 100% pure, you can use the formula C1V1 = C2V2, where C1 is the initial concentration (100%), V1 is the volume of absolute ethanol, C2 is the desired concentration (95%), and V2 is the final volume of the diluted solution. By rearranging the formula and solving for V1, you can determine the volume of absolute ethanol needed to achieve a 95% ethanol solution when mixed with water.
Ethanol is totally burned.
The percent volume of ethanol in a solution is the volume of ethanol divided by the total volume of the solution, multiplied by 100. It is commonly used to express the concentration of ethanol in alcoholic beverages or solutions.
To prepare an 80% glycerol solution, you would mix 80 parts glycerol with 20 parts water. For example, you could mix 80 mL of glycerol with 20 mL of water to make 100 mL of an 80% glycerol solution. Make sure to thoroughly mix the glycerol and water until the solution is homogenous.