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At 745K, the reaction 2AB(g) ? A2(g) + B2(g) has a Kc = 2.00 x 10-2. If a mixture of 1.00 mol AB and 1.00 mol A2 is sealed into a 10.0 L flask and heated to 745K, what will be the equilibrium concentration of B2?
Which of the following will precipitate as chloride salts: Ag+, Pb2+, Ca2+, K+, and Cu2+?
What is the pH at the equivalence point? (Kb of NH3 = 1.8 A 20.0 mL sample of 0.20 M sodium acetate is titrated with 0.11 M HCl(aq). What is the pH after the addition of 50.0 mL HCl(aq)?
Show the reaction energy diagram of two competing reactions, A & B and A & C, for which the kinetic product (C) is different from the thermodynamic product (B). Both reactions follow a one-step mechanism.
If 28 mL of a .537 M NaOH solution is needed to neturalize 20 mL of a carbonic acid (H2CO3) solution, what is the molarity of the carbonic acid? (Write a balanced chemical reaction first.)
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
Pancreatic lipases hydrolyze triacylglycerols (triglycerides) that have been emulsified by bile. Modify the triacylglycerol below to show the products of its hydrolysis
A 75 mL solution of 0.030 M Ca(OH)2 is titrated with 0.035 M HCl. Calculate the pH of the mixture after 60 mL of HCl have been added.
Determine how much PV work is done if 80.0 g of C 2 H 4 and 125 grams of hydro chloric acid are permissible to react at atmospheric pressure and the volume change = -63.9 L? express your answer in kilojoules
A 26.0-g sample of ice at -11.0°C is mixed with 123.0 g of water at 90.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
If 42.0 g of CO and 27.0 g of H2O are placed in a 5.0 L flask with 132 g of CO2 and 6.0 g of H2 and allowed to reach quilibrium, what will the concentration of CO be when the system finally reaches equilibrium?
What is the molar weight of the compound. Note: the freezing point depression constant of water is 1.86 oC/m
If 0.215 mole of calcium chloride is dissolved in 491.9 ml of water, how much will it change the temperature of water (FWt=18.02)? The delta H=-81.3 kJ/mole for CaCl2
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