What is the molar mass of a nonpolar molecular
What is the molar mass of a nonpolar molecular compound if 5.52 grams dissolved in 36.0 grams of benzene begins to freeze at -1.87oC? The freezing point of pure benzene is 5.50 oC and the freezing point depression constant, Kfp, is -5.12oC/m."
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A compound is 40.0% C , 6.70% H, and 53.3% O by mass. Assume that we have a 100.-g sample of this compound. The molecular formula mass of this compound is 240 amu. What are the subscripts in the actual molecular formula?
The reaction of peroxydisulfate ion (S2O8)2- with iodide ion (I-)is, S2O82-(aq) + 3I-(aq)= 2SO42-(aq) + I3-(aq) From the following data collected at a certain temperature, determine the rate law and calculate the rate constant.
For the following processes at 700 degrees celcius, what is the partial pressure of each gas if the total pressure is 0.75 at equilibrium?
Find the Ka for benzoic acid (C6 H5COOH and then find pH of a buffer solution that is prepared with 100 mL of 0.10 M benzoic acid mixed with 100 mL of 0.10 sodium benzoate (NaC6 H5COO) solution.
If 414 mL of a gas measured at 26°C and 641 torr has a mass of 0.384 g, what are the molecular mass and molar mass?
In an experiemtnt, hydrogen gas produced from a reaction between a piece of aluminum and HCL is collected over water and found to have a volume of 3.75 Liters at 25 degrees Celsius.
what is the final temperature of A metal sample weighing 34.526 g was heated to 98.0 degrees Celcius then quickly transferred into a styrofoam cup calorimeter containing 74.365 g of distilled water at a temperature of 27.0 degrees celcius.
What is the pressure in millimeters of mercury of 0.0110 of helium gas with a volume of 214 at a temperature of 50
If 9.00 of CaCl2 (Cl two)is added to the calorimeter, what will be the final temperature of the solution in the calorimeter? The heat of solution Delta H solution of CaCl2 (Cl two)is -82.8 KJ/Mol.
If 7.00 mol calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2) will be produced?
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