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A solution of 5.36 g of a molecular compound dissolved in 76.8 g benzene (C6H6) and has a boiling point of 81.46oC. What is the molar mass of the compound?
Boiling point of benzene = 80.1oC
Kb for benzene = 2.35oC kg solvent/mol solute
Empirical formula and molecular formula, 2) Two substances Q and R each have the elemental composition C = 60% h=13.3% 0=26.7% by mass 0.60 grams of each substance occupied a volume of 0.336 liters at 137 Celcius and standard pressure
Complete this equation to show how hydrofluoric acid, HF, acts as a Brønsted-Lowry acid in water. HF+H2O=?
The preparation of chlorobenzene by the reaction of chlorine with benzene occurs by the reaction C6H6 (l)+Cl2 (g)- ->C6H5Cl (l)+ HCl (g). If 52.6 g of benzene reacts with an excess of chlorine to give 51.6 g of chlorobenzene, what was the percent ..
An 0.758 mol sample of neon gas at a temperature of 18.0 oC is found to occupy a volume of 24.0 liters. The pressure of this gas sample is. answer in mm Hg please.
a solution is prepared by dissolving 285 g of sucrose c12h22o11 in 624 g of water. what is the vapor pressure of this
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity as 0.015 M Na2SO4 at 18,000 units?
Although this site is not desirable for making a bond between atoms, it is a good site in the sense that the electrons can be close to the nucleus.
The following compounds are dissolved in 1.00 L of water: 0.180 mol HA (Ka = 1.36 x 10-3), 0.020 mol NaA, 0.08 mol HNO3, and 0.08 mol Ca(OH)2 (strong base). What is the pH of the resulting solution
The atmospheric activity of 14 C is 15 cpm/gC (counts per minute per gram of carbon). Assume that the cloth was made in the year 24 B.C. The half-life of 14 C is 5730 years. What will be the expected activity of 14 C of this sample
If 100.0mL of water at 50 degrees celsius is added to 100.0mL of water at 20.0 degrees celsius. What temperature would the mixture of water reach
What is the activation energy for the reaction shown below k=1.89x10^-8 /s at 540 K and 2.45 x 10^-7 at 601 K
57.0 mL of a 1.80 M solution is diluted to a volume of 238 mL. A 119-mL portion of that solution is diluted using 117 mL of water. What is the final concentration.
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