Given the following, how do you calculate the mole fractions of water and alcohol in commercial vodka?
Commercial vodka is typically sold at a concentration of 40.0% alcohol by volume (ABV), which is equivalent to 31.2% by mass ethanol(#CH_3CH_2OH# ) in water. The vapor pressure of pure water and ethanol at 20 °C are 17.5 torr and 44.6 torr respectively.
Commercial vodka is typically sold at a concentration of 40.0% alcohol by volume (ABV), which is equivalent to 31.2% by mass ethanol(
Well, let's take a
Each component in the solution will have a vapour pressure that is proportionate to its mole fraction; the total vapour pressure of the solution will be this amount.
As is typical of the vapour of such solutions, the vapour is ENRICHED with respect to the MORE VOLATILE component, in this case, ethanol, when compared to the vapour pressures of the pure solvents.
By signing up, you agree to our Terms of Service and Privacy Policy
To calculate the mole fractions of water and alcohol in commercial vodka, you need to know the mole fractions of water and alcohol in the solution, which can be determined from the composition of the vodka. You can use the following formula:
Mole fraction of water = (moles of water) / (total moles of water and alcohol)
Mole fraction of alcohol = (moles of alcohol) / (total moles of water and alcohol)
To find the moles of each component, you can use the given mass of water and alcohol and their respective molar masses, then convert them to moles using the formula:
moles = mass / molar mass
By signing up, you agree to our Terms of Service and Privacy Policy
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- Limiting reagent problem? For the reaction #C_2H_6+O_2 to CO_2+H_2O#
- Coal gasification is a process that converts coal into methane gas. If this reaction has a percent yield of 85.0%, how much methane can be obtained from 1250 g of carbon?
- Given #Fe_2O_3(s) + 3CO(g) rarr 2Fe(s) + 3CO_2(g)#, how do we calculate the molar equivalence?
- The fuel methanol (#CH_3OH#) is made by the reaction of carbon monoxide and hydrogen. What is the balanced chemical equation? How many grams of hydrogen are needed to produce 45.0 grams of methanol?
- How many molecules of #O_2# are required for the complete combustion of 23.0 grams of hexane in the reaction #C_6H_14 + O_2 -> CO_2 + H_2O#?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7