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The formation of SO3 from SO2 and O2 is an intermediate step in themanufacture of sulfuric acid, and it is also responsible for theacid rain phenomenon. The equilibrium constant Kp for the reactioni
An automobile tire has a pressure of 325 kPa when the temperature is 10 degrees celcuis. If the temperature of the tire rises to fifty degrees celcuis and its volume is constant, what is the new pre
An ice cube tray holds 455 g water. If the water initially has a temperature of 33°C, how many kilojoules of heat must be removed to cool and freeze the water at 0°C?
Calculate the amount of Zn metal in grams consumed in the reaction. (Vapour pressure of water at 25C = 23.8 mmHg).
Exactly 5.00 mL of 1x10^-3 M F- standard was added to the 50.0mL solution and the potential on the fluoride ISE became +68mV. Calculate the fluoride content in the soil as %F-.
What is the biological importance of OH- (hydroxide), what are the daily minimum requirements, what are the effects of deficiency and excess.
Explain the interaction effect between nitrogen and phosphorus and Nitrogen and potassium. Describe the dynamics amoung various potassium forms in soil and discuss the fates of potassium added to th
If 100. mL of 0.05M NaCl is added to 200.0 mL of solution containing 0.005 M AgNO3 and 0.100 M Pb(NO3)2, does a precipitate form? If so, which one forms? Justify your answer
In a reaction where PbCl2 precipitate was formed using Pb(NO3)3 and HCl, explain why the PbCl2 precipitate dissolved when water was added. (What was the effect of the added water on the [Pb2+] and [
At 25.0°C, a sample of Xe gas occupies 550 mL in a piston-cylider apparatus when the external pressure is 353 torr. At what pressure (torr) will its volume become 894 mL if the temperature does
Discuss the pros and cons of the various METHODS of application of solid fertilizers. Describe the revelant facets of fertility evaluation.
What is the percent ionization of a solution made by adding 6.00 grams of CH3COOH to 100 g of water (Kb = 0.512 ? C/m) if the boiling point of the solution is 100.712 ? C? Answer in units of %.
Most community water supplies contain 0.5 ppm chlorine added for purification. What mass of chlorine must be added to 1500. L of water to reach this level. .
What is the formula and electron dot structure for phosphite?
A certain organic compound was burned, producing 1.481 g of CO2 and 0.303 g of H2O. The mass of the original sample was 0.438 g. What is the empirical formula of the compound?
Can you write the oxidation reduction reaction for a solution of potassium dichromate added to an acidified solution of sodium iodide?
Calculate the heat of reaction from the standard heats of formation listed below. Then, calculate the standard enthalpy change when 36.8 grams of water is consumed in this reaction.
A 1.50-liter sample of dry air in a cylinder exerts a pressure of 3.0 atmospheres at a temperature of 25°C. Without change in temperature, a piston is moved in the cylinder until the pressure in
At 700k the equilibrium constant kc for the gas phase reaction between no and o2 forming no2 is 8.7x 10^6 the rate constant 0.54m-1s-1 what is the value of the rate constant for the forward reaction
A tire has a pressure of 780 mmHg at 27°C. If the tire is heated to 47°C on hot pavement, what the new pressure will be:
Sulfuryl chloride (SO2Cl2) in the gas phase decomposes to sulfur dioxide and chlorine gas. A) what is the rate law?
130 mL of an HCl solution with pH of 3.90 is added to 200 mL of an HNO3 solution. The resulting solution is 1.40. What was the pH of the original HNO3 solution?
A bacterial culture isolated from sewage produced 35.0 mL of methane, CH4, at 31°C and 753 mmHg. What is the volume of this methane at standard temperature and pressure (0°C, 760 mmHg)?