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Determine the freezing temperature of a 10 mM solution of Formic Acid (FaOH) in Water which also contains 25 mM Na2SO4 and 15 mM Ca(NO3)2. pKa of Formic Acid is 3.75, Kf(H2O)=1.85 (K*kg)/mol
General Chemistry: Energy, Volume, Mass, Molarity, and Moles, Benzene is an organic solvent with the formula C6H6. It boils at 80.1 degrees celcius and melts at 5.5 degrees Celsius. Benzene's density is 0.88gm/ml; its heat of vaporization is 30.0 ..
What is a variable which has no effect on the rate of a chemical reaction under any circumstance is
Calculate Ka for acetic acid in both the molal and molar standard states. Use as many sig figs as your calculations in part b.) warrant.
The activity of an isolated sample of gas obtained from a basement containing radon-222 was found to be 8 pCi/L. This isotope has a half-life of 3.8 days. If no additional radon-222 entered the sample, how long would it take for the activity to de..
A 325-mL sample of solution contains 25.3 g of CaCl2, which is fully dissolved. (a) Calculate the molar concentration of Cl- in this solution. (b) How many grams of Cl- are in 0.100 L of this solution?
Displays the volume and pH at which equivalence was reached and plots this point on the graph and validates the code by plotting the midpoint using both methods and displaying the volume and pH for both methods in the Command Window.
When iodine solution is mixed with cyclooctene, the color of the iodine disappears. Write a reaction that shows the product
Using the oxidation numbers of carbons in malate and oxaloacetate, predict if the conversion of malate to oxaloacetate an oxidation or a reduction. You need to show the calculation of the oxidation numbers
If toluene(density 0.87) were used to extract ethylene bromohydrin (density 2.41) from an aqueous solution.
Why are homopolymers of polyethylene and isotactic polypropylene rigid plastics, but ethylene-propylene (EPR) copolymer soft
When NO(g) reacts with H2(g) to form N2(g) and H2O(l), 376 kJ of energy are evolved for each mole of NO(g) that reacts. Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
Alcohols are less volatile than ethers of the same molecular weight, but the two classes of compounds have approximately the same solubility in water because:
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