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A solution of 1.5 grams of solute dissolved in 25 ml of H2O at25 degrees celsius has a boiling point of 100.45 degrees celsius.A. What is the molar mass of the solute if it is a nonvolatilenonelectrolyte and the solution behaves ideally (d of H20 at25 degrees celsius = 0.997 g/mL)?
B. Conductivity measurements show the solute to be ionic of general formula AB2 or A2B. What is the molar mass if the solution behaves ideally?
C. Analysis indicates an empirical formula CaN2O6. Explain the difference between the actual formula mass and thar calculated fromthe boiling point elevation.
D. Find the van't Hoff factor (i) for the solution.
calculate the volume in ml of a 1.22 m na2s solution needed to react with 2.75 g of albr3 molar mass 266.7 gmol in the
a 2.50 l flask at 17.0 degrees celcius contains a misture of three gases n2 he and co2 at partial pressures of 0.32 atm
calculate the final temperature of a mixture of 130.0 g of ice initially at -22.5 Celsius and 310.0 g of water initially at 80.5 Celsius.
Which of the following statements correctly define SI base units and derived units in science? SELECT ALL THAT APPLY. 1. Derived units are nonmetric units. 2. The base units are the same as the decimal prefixes. 3. All that base units are metric u..
a sample of an unknown gas effuses in 10.5 min. an equal volume of h2 in the same apparatus under the same conditions
Tartaric acid is the white, powdery substance that coats sour candies such as Sour Patch Kids. Combustion analysis of a 12.01- sample of tartaric acid-which contains only carbon, hydrogen, and oxygen-produced 14.08 and 4.32.
Carbon NMR has only the following peaks: 29.8, 36.1 and 206.8 ppm. Propose a structure of this compound and explain splitting pattern and the ratio
Because of porosity of the filter paper some of the CaC2O4*H2O precipitate passes through the filter paper. Will the reported percent of the limiting reactant in the original salt mixture be reported too high or too low
Given the following heats of formation, delta H f, in kJ per mole, as obtained from a table of deltaHf data, calculate the delta H for the reaction in part f. Compare your answer with the result you obtained in Part e.
What are the spectator ions in the solution after the complete neutralization reaction occurs when mixing the strong base NaOH
Suppose solute A has a distribution coefficient of 1.0 between water and diethyl ether. Demonstrate that if 100 ml of a solution of 5 g of A in water were extracted with two 25 ml portions of ether a smaller amount of A would remain in the water t..
Which of the following compounds will have the highest molar solubility in pure water. Answer A. PbSO4, Ksp = 1.82 × 10-8 B. MgCO3, Ksp = 6.82 × 10-6 C. AgI, Ksp = 8.51 × 10-17 D. PbS, Ksp = 9.04 × 10-29 E. FeS, Ksp = 3.72 × 10-19
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