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Question- The boiling point of a substance is defines as the temperature at which liquid and vapor coexist in equilibrium.
Use the heat of vaporization (delta H vap=30.91 kJ/mol) and the entropy of vaporization [delta S vap= 93.2 J/(K*mol)] to calculate the boiling point (degrees C) of liquid bromine.
Provide your answer in scientific notation
During a Fischer esterification of p-aminobenzoic acid using absolute ethanol and concentrated sulfuric acid, what is the solid that separates when the sulfuric acid is added to the ethanolic solution of p-aminobenzoic acid
Explain a sample of liquid mercury mass 67 g and temperature 92 C is poured into 96 g of H2O at 15 C. Compute the final temperature of the mixture assuming no heat is lost. The heat capacities of Hg as well as H2O are 27.98 and 75.33 J/mol/K, resp..
Calculate the concentration of the hydronium ion in a 3.433 * 10^(-2) M solution of potassium perchlorate acid to the correct number of significant figures or decimal places.
Calculate the molar solubility of CaF2 at 25C in a solution that is (a) 0.010M Ca(NO3)2 and (b) 0.010M NaF
In the Hofmann Degradation of amines an amine is exhaustively methylated with Methyl Iodide and the resultant compound treated with Silver Hydroxide and heated. An alkene is formed which is not the Saytzeff product.
determine volume of na2s2o3 sodium this sulfate and h2o water are required to produce an estimated 0.10 m solution
Nitrogen gas (N2) reacts with hydrogen gas (H2) to form ammonia (NH3). At 200°C in a closed container, 1.3 atm of nitrogen gas is mixed with 2.2 atm of hydrogen gas. At equilibrium, the total pressure is 2.1 atm. Calculate the partial pressure of ..
Rank them in order of size from largest to smallest. In this diagram, A and B are different palindrome sequences on a DNA strand. Only the restriction enzyme that recognizes site B is present. Explain why only two fragments would be produced. How ..
What is the chemical make-up of natural cleaners? How do these products compare to traditional cleaners? Are the active ingredients the same or different?
Suppose a snack bar is burned in a calorimeter and heats 2,000 g water by 20 °C. How much heat energy was released? (Hint: Use the specific heat equation.) Give your answer in both joules and calories.
in a coffee-cup calorimeter 1.50 g of nh4no3 is mixed with 76.0 g of water at an initial temperature of 25.00degc.
a sample of a compound containing only magnesium and oxygen is found to have 194g Mg and 256g of O. What percentages of Mg and O in this compound?
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