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The following diagram represents a reaction shown going to completion.
(a) Letting A = red spheres and B = blue spheres, write a balanced equation for the reaction.
(b)Write the equilibrium- constant expression for the reaction.
(c) Assuming that all of the molecules are in the gas phase, calculate ?n, the change in the number of gas molecules that accompanies the reaction.
(d) How can you calculate Kp if you know Kc at a particular temperature?
What is the expected freezing point of a 0.50 m solution of Li2SO4 in water? Kf for water is 1.86°C/m.
Mercury is a 6th row and Zinc is a 4th row transition metal. if ionization energy depends upon effective nuclear charge and the distance of electrons from the nucleus, why do you think it takes more energy to ionize Mercury than Zinc
Which of the following is correct regarding an acid-base conjugate pair. a. The conjugate base will have one less proton and one less negative charge. b. The conjugate acid will have one more proton and one less positive charge.
A 100.0 mL sample of 0.18 M HClO4 is titrated with 0.27 M LiOH. Determine the pH of the solution before the addition of any LiOH.
Assuming the only weight loss for the rat is the loss of CO2 gas (i.e. water is retained), how many grams does the rat weigh once the sugar is metabolized?
A hypothetical weak acid, HA, ws combined wih NaOH in he following proporions: .2 mol of HA, .08 ml of NaOH. The mixture was diluted o a total volume of 1.0 L and the pH measured.
Calculate the concentration of bicarbonate ion, HCO3 -, in a 0.010 M H2CO3 solution that has the step wise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.
Barium sulfate is used clinically to provide x-ray images of the digestive tract. How might barium sulfate be prepared in the laboratory from a double-displacement reaction of an ionic nitrate compound and sodium sulfate?
All living things contain carbon. Most of this carbon is stable carbon-12. However, a small percentage will be carbon-14, a radioactive isotope of carbon that decays with time. As living things eat and breath, carbon is constantly recycled and the..
Question- For the titration of 30.0ml of 0.400M NH_3 with 0.500 M HCl at 25 degrees determines the relative pH at each of these points.
Explain A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. Define what is the molar mass of the protein
Question- Can water serves as an electron acceptor and/or electron donor in a biological system. Please explain and give examples.
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