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At 35.0 oC, the vapor pressure of chloroform is 295.1 torr and that of ethanol is 102.8 torr. a. Which of these liquids has the higher boiling point? b. A chloroform-ethanol solution at 35 oC with ?ethanol=0.200 in the liquid phase has a vapor pressure of 304.2 torr and a vapor composition of Yethanol= 0.138. Calculate the activity and activity coefficient for ethanol in this solution. c. Calculate ?mixG for a solution that contains 0.12 moles of ethanol and 0.83 moles of chloroform at 35.0 oC.
4HCl + MnO2 = MnCl2 + 2H2O + Cl2 When 1.22 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?
Predict if the following conditions would result in the formation of a precipitate, explain briefly: a) 0.0025 M Fe 3+ at pH 6.00
double bond energy= 837 h single bond cl = 431 C single bond C = 347 C single bond H = 414 C single bond Cl 339 It says answer is -154 kJ but im not getting that
A solution of acid is titrated with NaOH. Give the net ionic equation for this reaction. 2. Determine the pH for the following solutions, and identify them as acidic, basic, or neutral.
Calculate the molar concentration of OH- ions in a 0.560 M solution of hypobromite ion (BrO-; Kb = 4.0 x 10^-6). What is the OH- and PH
3CuSO4 + 2Fe --> 3 Cu + Fe2(SO4)3 If you place .092 mol of iron filling in a solution containing .158 mol of CuSO4, what is the limiting reactant? How many moles of Cu will be formed.
How many milliliters of 1.50 M H2SO4 are needed to neutralize 50.0 g of NaOH?
Gastric juice is made up of substances secreted from parietal cells, chief cells, and mucous-secreting cells. The cells secrete HCl, proteolytic enzyme zymogens, mucin, and intrinsic factor
A sector instrument is designed to operate with a radius of 30.0 cm and an accelerating voltage of 3000 V. Calculate the magnetic field necessary to focus the M positive ion of methane (CH^4)
Draw the major and minor products generated in the reaction of 1-Bromo-3methylene-cyclopentane in methyl alcohol and heat.
The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common
What is the isotropic difference (in per mil) at 25 degrees between gas, liquid, and solid phase for the elements carbon and sulfur? Show calculations
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