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What are the conductance cell and the cell constant? Describe experimental method for the determination of the cell constant.
How much ice (in grams) would have to melt to lower the temperature of 351 mL of water from 26 C to 6 C. (Assume the density of water is 1.0 g/mL.)
After you determine the concentration of the unknown stock solution, you will need to use the density to calculate the % mass of thymol
A solution contains 0.50 M Cl^- and 0.50 M Br^- ions. Solid AgNO3 is added without changing the volume of the solution. What is the Br^- concentration when AgCl(s) first begins to precipitate?(Ksp for AgCl = 1.8 x 10^-10 and Ksp for AgBr = 5.1 x 1..
Decide whether or not each of the following metals dissolves in 1 M HCl . For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves.
Draw structural formulas for propanal and propanone. From these formulas, do you think that aldehydes and ketones are isomeric with each other? Show evidence and substantiate your answer by testing with a four carbon aldehyde and ketone.
Propose a step-by-step microscale extraction procedure that could be used to separate a mixture nitrobenzene, 4-methoxybenzoic acid, and benzylamine into the pure compounds using extraction technique. All of the molecules are organic-soluble in di..
A 1.304 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.500 grams of KI and 50.00 mL of a 0.00919 M KIO3 solution.
A buffer is composed of 0.400 mol H2PO4^- and 0.400 mol HPO4^2- diluted with water to a volume of 1.00 L. The pH of the buffer is 7.210. How many moles of HCl must be added to decrease the pH to 6.210?
Draw the product(s) which can be formed by anti elimination of water from trans-2-methylcyclohexanol.
A gaseous mixture of O2 and N2 contains 38.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 365mmHg
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO, and then treat the oxide sample with HCl.
Write out and label the oxidation half-reaction and the reduction half-reaction. b) Combine your balanced half-reactions to show the balanced total reaction. c) What is the oxidizing agent? What is the reducing agent?
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