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propanol (p*1 = 20.9 torr at 25 °C) and 2-propanol (p*2 = 45.2 torr at 25 °C) form ideal solutions in all proportions. Let x1 and x2 represent the mole fractions of 1-propanol and 2-propanol
A vapor composed of 0.20 mole fraction ethanol and 0.80 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid.
Based on the Ksp values of CuS, PbS, MnS and HgS, which the the following ion pair will be the easiest to separete by fractional precipitation
In a pure sample of which of the following is there no hydrogen bonding? a. CH3NH2 b. (CH3)2NH c. (CH3)N d. none, pure samples of all these have hydrogen amines
Calculate the maximum work for the following cell if 88.9 g of Cl2 are produced and the emf is 0.520 V: 2 BaCrO4 + 16 H3O+ + 6 Cl- 2 Ba2+ + 2 Cr3+ + 3 Cl2 + 24 H2O
what would be the effect on this experiment if the student Aceton +benzaldehyde ----> dibenzalacetone a. added half the amount of benzaldehyde?
Consider the combustion reaction of acetylene (C2H2), H2O(l) is one of the products. Which of the following statements are correct? Choose all that apply.
A block of alumium with a volume of 91.1cm^3 absorbs 64.6 j of heat. If its initial temperature was 33.7C, what is its final temperature
A cell is constructed at 298 K based on the reaction 2 Co3+(aq) + 2 H2O(l) H2O2(aq) + 2 H+(aq) + 2Co2+(aq), E° = 0.14 V. Calculate the pH in the anode compartment if the cell emf = 0.23 V when [
Calculate the value of the equilibrium constant at 298 K for the reaction: Sn(s) + Sn4+(aq) 2 Sn2+(aq).
What is the theoretical yield and limiting regent if 2.6 g of benzaldehyde is reacted with 0.7 g of acetone to produce dibenzalacetone
Calculate the volume of each of the following gas samples at STP 8.1 mol c2h2, .255 mole ci,0440 mol co2, 24.1 mol n2o in L
which cation will precipitate first. What minimum concentration of Na2SO4 is required to cause the precipitation of the cation that precipitates first
In the synthesis of t-butyl chloride from t-butyl alcohol, what is the purpose of using concentrated HCl instead of dilute HCl
a. added half the amount of benzaldehyde? b. forgot to add benzaldehyde? c. forgot to add acetone, but added a high (50%) concentration of sodium hydroxide? d. washed the product with large amounts
In the molecular orbital model of benzene, the six p-orbitals combine to form how many molecular orbitals
Consider the titration of 43.2mL of .240M HF with .220M NaOH. Calculate the pH at halfway to the equivalence point. Ka = 3.5 * 10^4
In the molecular orbital model of the cyclopentadienyl cation, how many pairs of degenerate pi-antibonding molecular orbitals are there
Given: H-H bond energy = 435 kJ, Cl-Cl bond energy = 243 kJ, and the standard heat of formation of HCl(g) is -92 kJ/mol, calculate the H-Cl bond energy.
There are no results for a heat engine cycle is executed with steam in the saturation dome between the pressure limits of 7 and 2 MPa. If heat is supplied to the heat engine at a rate of 150 kJ/s, c
An intravenous replacement solution contains 4.0mEq/L of Ca2+ ions. How many grams Ca2+ are in 3.0L solution
Write the cell diagram for a galvanic cell consisting of a tin electrode in contact with 0.0100M tin(II) chloride solution and a chromium electrode in contact with a 0.50M chromium (III) nitrate sol
An aqueous solution contains 545 g of ThCl3. If the solution is electrolyzed using inert electrodes, calculate the current needed to remove all of the thorium from the solution in 5.00 hours.
Predict the major and minor products of the following reaction.
Now suppose that an additional 5.00 moles of argon are added to the vessel, again without any change in the volume or the temperature. What is the partial pressure of argon now