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1. Write equations for the reaction of 2,4-dinitrophenyldrazine with
a. Propanal
b. Acetophenone
2. Write an equation for the reaction of semicarbazide with cyclopentanone to form a semicarbazone. What is the melting point of this derivative?
3. Write an equation for the reaction of the Tollen%u2019s Reagent with heptanal.
4. Write the structure of the organic product resulting from the reaction of basic KI/I2 reagent with 2-butanone.
5. What should be done with the waste from the chronic acid reagent? What should be done with excess reagent?
In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed?
Calculate the entropy and Gibbs energy of mixing when the partition is removed. Assume that the gases are perfect.
A mass of 2.052 g of a metal carbonate, MCO3, is heated to give the metal oxide and 0.4576 g CO2.
The equilibrium concentration of I2 is 0.0900M. What is the equilibrium constant, Kc , for the reaction at this temperature?
Which of the following is both a decomposition reaction and a reduction-oxidation reaction? a. H2CO3(aq) --> Co2(g) + H2O(l) b. Zn(s) + SuNO3(aq) --> Cu(s) + ZnNO3 (aq) c. Ca(OH)2(aq) + 2HCl(aq) --> CaCl2(aq) + 2H2O(l)
V is the volume, and n is a number that can be 1, 2, 3, ... . Assume that A=1. Determine the work done by the piston. Propose a physical meaning to the term "n" in the above equation.
An aqueous solution is made by dissolving 24.5 grams of manganese(II) chloride in 466 grams of water.
Which of the following are a conjugate acid-base pair in the above reaction?
A block of metal has a width of 3.2 cm, a length of 17.1 cm, and a height of 2.7 cm. Its mass is 1.5 kg. Calculate the density of the metal. Express in grams per cubic centimeter using two significant figures.
What is the molarity of a solution made by dissolving 68 g of Mg(NO3)2 in enough water to make 450 ml of solution?
Determine the ion notation for an atom with 18 electrons and 20 protons
what is the diameter of an aluminum atom? the mass of 1 mold is 27 g the density of aluminum is 2.7g mol
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