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A solution containing 25.3 mol% benzene and 74.7 mol% toluene boils at 100°C. If the vapor is collected and condensed back to liquid the liquid is found to boil at 94.8°C. The vapor pressure of pure benzene is 1357 torr at 100°C and 1108 torr at 94.8°C. Assume that the vapors and solutions are ideal. Calculate the composition (mol% each component) of the condensed liquid. What is the vapor pressure of pure toluene at 94.8°C?
A certain second-order reaction (B-product) has a rate constant of 1.25×10?3M^-1s^-1 at 27 degree celcius and an initial half-life of 264s . What is the concentration of the reactant B after one half-life
a solid sample containing some Fe+2 ion weighs 1.062g. It requires 24.12mL 0.01562 M KMnO4 to titrate the Fe+2 in the dissolved sample to a pink end point.
Calcultae the observed rotation of a mixture of + and - tartaric acid containing 60% of the S isomer
an antifreeze solution prepared by mizing equal volumes of ethylene glycol, C2H6O2 (density 1.12g/cm^3) with water (density 1.00 g/cm^3). Estimate the freezing point of the mixture
How much energy is released per Kg of Dilithium formed? Mass of one atom of 6 Li is 6.015121 amu. Do not know where to start.
The solubility product of lead chromate is 2.0x10^-16 calculate the solubility in moles per liter of lead chromate in each of the following solutions:
The electron microscope has been widely used to obtain highly magnified images of biological and other types of materials
What is the HCl concentration if 69.7 mL of 0.350 M NaOH is required to titrate a 30.0 mL sample of the acid?
An equilibrium mixture contains 0.450 mol of each of the products (carbon dioxide and hydrogen gas) and .200 mol of each of the reactants (carbon monoxide and water vapor) in a 1.00 L container.
To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.59 mg/mL was mixed with 1.00 mL of the plant stream material, and analysis of the mixture gave a peak area of 463 for peak A and 425 for peak B. What is the concent..
The total precipitate was dissolved in HCl + HNO3. When the solution thus formed was treated with excess NaOH followed by H2O2, a colorless solution and a reddish brown precipitate were formed. The precipitate was found to be soluble in HCl, H2SO4..
What did you observe in the reactions of zinc with 4 different acids: HCL, H2SO4, H3PO4, and CH3COOH
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