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Question- At a given temperature, you have a mixture of benzene (vapor pressure of pure benzene = 745 torr) and toluene (vapor pressure of pure toluene = 290 torr). The mole fraction of benzene in the vapor above the solution is 0.590. What is the mole fraction of toluene in the solution?
I am not able to solve the above problem somebody help me to get the correct answer
dissolved .31 grams of KHP in 25 ml of water and it required 15.5ml of NaOH to reach end of titration, how many moles of KHP were originally present before the addition of the NaOH?
Air is about 78.% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules.
A sample of 1.00 g of lead (II) nitrate is mixed with 130 mL of 0.102 M sodium sulfate solution. Write a balanced chemical equation with phases
4-isopropyl-2-methyl hexane and 2,4- dimethyl-3-t-butyl pentane are not genuine IUPAC names. what are the correct names and structure
For a multiple choice question like which of the subsequent species does not have resonance structures. is there a shortcut to know the answer without having to draw all the Lewis structures for each molecule
A student places 2.0 moles of methylamine in 500ml of water. what is the pH? the Kb of methylamine is 4.4x10^-4.
If you wanted to prepare a 1.45 L buffer with a total phosphate concentration of 0.0500 M, how many grams of NaH2PO4 and Na2HPO4 would you mix together? How many grams of conjugate acid do you need? How many grams of conjugate base do you need?
While 14 g of baking soda (NaHCO3) is added to 550.0 mL of vinegar (an aqueous solution of CH3COOH at 5% concentration by mass), the vinegar neutralizes the baking soda as well as converts it to CO2 gas
What is the value of Keq for the reaction H2(g) + 1/2 O2(g)-> 1/2 H2O(l)?
If you weigh the lauric acid to the nearest 0.1g and you weigh the unknown solid to the nearest 0.0001g, can you calculate a molar mass of your unknown solid to three significant figures. Show clearly your reasoning.
Describe the process that will result in the greatest amount of work done by the system with a constant external pressure and calculate w. What is the least amount of work done with no restrictions on the external pressure
Find out the mass of the copper that was removed from the penny. Presuming excess nitric acid, Compute the grams of copper (II) nitrate that must have formed in the reaction
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