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How does one prepare 500ml of 70 percent ethanol?
150 ml ethanol to 350 ml distilled water
Is distance ratio or interval?
It is ratio.
What is the product of the numerator of one ratio and the denominator of the other ratio called in a proportion?
The numerator of the second ratio and the denominator of the first ratio are called the means, and the numerator of the first ratio and the denominator of the second ratio are called the extremes. The product of the means equals the product of the extremes.
There are two rectangles what are the ratio of the first to the second?
I guess you mean the ratio of the areas; it depends if the 2 rectangles are "similar figures"; that is their matching sides are in the same ratio. If they are similar then the ratio of their areas is the square of the ratio of the sides.
How do you express ratio?
You express ratio as a fraction. For instance, the ratio of 3 to 4 is 3/4, or .75
What is the Ratio of carbon in ethanol?
2/9 in terms of atoms.
How do you make nitrocellulose thinner what are the solvents and the ratio?
Nitrocellulose is soluble in a mixture of ethanol and ethylether.
Is ethyl alcohol soluble in water?
Yes, ethanol (ethyl alcohol), as being a fluid by itself, is in any ratio miscible with ('soluble in') water.At 96% ethanol the mixture has the lowest boiling point, so destillation of a water-ethanol will never give a higher ethanol content.
How is ethanol made for cars?
Ethanol is alcohol made from corn/sugar cane, etc. it is the same alcohol you drink. Cars that run on ethanol, have different fuel lines, injectors, ECU programming since ethanol runs at a different ai/fuel ratio than gasoline.
How much does a gasoline ethanol blend weight per gallon if the ratio per gallon is 90 percent gasoline and 10 percent ethanol?
Around 6 lbs. Depends on temperature and elevation.
The pH of ethanol?
the pH of ethanol can be calculated using its pKa value (pKa 15.9) and the Henderson-Hasselbalch equation. pH = pKa - log [AH/A] where [AH/A] the ratio of disassociated versus undisassociated species in solution.
Does your gas tank have to be completely empty when refueling with E85 due to the ethanol and gasoline ratio?
No. Just fill as normal at any point.
How many moles of glucose are required to form 127g of ethanol?
To form ethanol, the chemical equation shows that one mole of glucose is converted to two moles of ethanol. The molar mass of glucose is around 180 g/mol and that of ethanol is around 46 g/mol. Therefore, to produce 127g of ethanol, you would need 127g/(46g/mol) = 2.76 moles of ethanol. Since glucose to ethanol is a 1:2 ratio, you would need half as many moles of glucose, which would be 1.38 moles of glucose.
Explain why during the recrystallization of p-dibromobenzene the turbidity of the hot solution was used as an indicator for the ratio of ethanol to water used?
The turbidity of the hot solution during recrystallization can indicate the saturation level of the solvent system. If the solution becomes turbid at a certain ratio of ethanol to water, it suggests that the solvent system is nearing its saturation point for dissolving the compound. This can help determine the ideal solvent ratio for recrystallization to achieve maximum yield and purity of the compound.
What is the optimal ratio of sugar corn water and yeast to make ethanol?
The optimal ratio for making ethanol through fermentation can vary depending on the specific conditions and desired ethanol concentration. A common starting ratio is around 5-6 pounds of sugar per gallon of water, with a small amount of yeast to initiate fermentation. It is important to monitor the process closely and adjust the ratios as needed to achieve the desired fermentation rate and ethanol yield.
Calculate the molarity of a solution of ethanol in water in which the mole fraction is 0.040 assume that the density of water to be one?
To calculate the molarity, first calculate the concentration of ethanol in the solution using the mole fraction. Since the mole fraction of ethanol is 0.040, the mole fraction of water would be 1 - 0.040 = 0.960. Then, convert the mole fraction of ethanol to molality by dividing by the molar mass of ethanol. This gives you the molality of ethanol in the solution. Finally, since the density of water is 1 g/mL, the concentration in mol/L would be equal to the molality.
How can prepare ethanolic solution?
To prepare an ethanolic solution, simply mix ethanol (commonly known as alcohol) with a solvent such as water. The ratio of ethanol to water will determine the concentration of the solution. Be sure to measure the quantities accurately and mix well to ensure homogeneity.
