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a. Atmospheric pressure on Mount Everest is 224 mm Hg.What is the boiling point of water there?
b. What is the freezing point of water on Mount Everest?
A 0.20M of acetic acid, CH3COOH, at a temperature of 25degC has pH of 2.73. Calculate the hydrogen ion concentration
What are the energies of the lowest five energy levels in a 3 dimensional box where a=b=c and the degeneracy of each level
calculate the amount of heat transferred when 2.7 g of rm mgrm s reacts at constant
what is the simplest formula for chalcocite if a sample of this ore contains 8.274 g copper and 2.088 g
Prepare a plot of absorbance versus concentration for your four standard solutions. Fit a line to this plot, and determine the equation of the best-fit line.
a student titrated three different samples of khp and determined that the sodium hydroxide molarity was 0.1234 m
Use standard enthalpies of formation to determine Horxn for: 3NO2(g) + H2O(l) ? 2HNO3(aq) + NO(g) Enter in kJ. -133.5 Find the change in internal energy for this reaction.
If a sample of optically pure (+)-2-iodobutane (specific rotation = +32.1) was dissolved in an 18% sodium iodide solution, what would happen to the optical rotation over time
Without first writing a full molecular or ionic equation, write the net ionic equations for any precipitation reactions that occur when aqueous solutions of the following compounds are mixed.
Show the products of the reactions of these carboxylic acid with PBr3/Br2 before and after hydrolysis. a) Pentanoic acid
Hydrogen bonding between polyamide chains plays an important role in determining the properties of a nylon such as nylon 6,6. Draw the structural formulas for two adjacent chains of nylon 6,6 and show where hydrogen-bonding interactions could occu..
which the excess HClO4 was back-titrated with 8.72-mL of 0.3045 M NaOH using bromocresol green as an indicator. What is the concentration of the perchloric acid solution?
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