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Benzene (A) melts at 6 0C and diphenylmethanol (B) melts at 65 0C. The solids are mutually immiscible. There is a eutectic at 1 0C, the eutectic solution being 20 mol % in B, and an unstable compound, AB2, which decomposes at 30 0C. Draw and label the simplest melting point diagram consistent with the preceding information. Sketch with reasonable attention to detail the cooling curves for solutions containing 10% B and 67% B.
What volume (V) of 2.20 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.26? (The pKa of acetic acid is 4.76.)
Will a precipitate of Cu(OH)2 form when 18.00 mL of 0.010 M NaOH is added to 1.000 L of 0.010 M CuCl2
determine what percentage (by mass) of the detergent must be sodium carbonate in order to completely precipitate all of the calcium and magnesium ions in an average load of laundry water.
calculate the volume, in liters, occupied by 3.25 moles of Cl2 gas at 1.54 atm pressure and a temperature of 213 degrees celcius?
A certain acid HX is dissolved in water to make a 0.10M solution. At equilibrium, the concentration of X^- ions is 1.0 x 10^-5 M. The Pka of HX is approximately?
Complete and balance the molecular equation, including phases, for the reaction of aqueous copper(II) chloride, CuCl2, and aqueous potassium phosphate, K3PO4.
Compounds containing carbon-carbon triple bond undergo the Diels-Alder reaction. Formulate the product formed by the reaction
The solution is connected to a SCE referece cell (Esce = 0.241V) and a potential of Ecell= 1.169 V is measured. determine the concentration of BrO3 (aq) in the solution
Titration of 15mL of 0.125M unknown base with 0.103M HCl required 18.2mL to reach the equivalence point. the pH at the equivalence point was 2.74.
Calculate the electrode potential of the following half cell if it was at standard conditions. Then recalculate how this changes using.
How many grams of Na3PO4 will be needed to produce 425 mL of a solution that has a concentration of Na+ ions of 0.900 M ?.
Is the reaction exothermic or endothermic? b) Calculate the heat produced when 10.0 g of AlCl3 forms. c) How many grams of Al are required to produce 1.00 kJ of energy?
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