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Problem- A solution that was made by dissolving 9.81 g of a nonvolatile molecular compound in 90.0 g of water boiled at 100.37 degrees Celsius at 1.00 atm. What is the approximate molar mass of the substance? (For water, Kb=0.521 degrees Celsius/m)
Explain each and every step in detail. I need proficient help in the above problems.
If a temperature increase from 19.0 to 37.0 triples the rate constant for a reaction, what is the value of the activation barrier for the reaction
The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
A small spherical virus has a molecular weight of 1.25x10^6 g/mol and a diameter of 100 Angstrom. Calculate the intrinsic viscosity in units of cm3/g of an aqueous solution of this virus.
Two common substances that are used in the northern U.S. to melt snow and ice are sodium choride (rock salt) and calcium chloride. You have a bag of a substance sold as melting salt
Balance the following equation and write the corresponding ionic and net ionic equations (if appropriate include) phase abbreviations HNO3+(BaOH)2
Question- What volume (L) of the solvent tetrahydrofuran should be added to 0.358 L of the solute diethyl ether to prepare a solution that contains 7.60 % by mass (C2H5)2O.
explain why even though 16 annulene is not aromatic it adds two electrons readily to form an aromatic
The initial concentration of a reactant in a first order reaction is 0.620 molar. What will be its concentration after 3 half-lives
question a 74.8 g sample of copper at 143.2degc is added to an insulated vessel containing 165 ml of glycerol c3h8o3 l
Draw the structure of an alkane or cycloalkane that has more than three but fewer than ten carbon atoms, and only primary hydrogens.
Draw the missing intermediate and add curved arrows for the production of phenylethyne by the double dehydrohalogenation
Determine what would be the final temperature if thirty grams of Al at 95 degrees Celsius are added to 100 grams of H 2 O at 25 degrees Celsius?
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