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When an ion-selective electrode for X was immersed in 0.0480 M XCl, the measured potential was 0.0330 V. What is the concentration of X when the potential is 0.0480 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
The temperature is held at 271 K. Calculate the work done by the gas(in joules). to give the appropriate sign
calculate the new temperature in Celcius- tank of helium gas with a pressure of 270 torr at 4 degrees celcius is heated to give a pressure of 1500 torr
What are the equilibrium concentrations of each reactant and product? (All three substances are gases at 250 °C)
A reaction vessel at 27 degrees C containsa mixture of SO2 (P = 3.10 atm) and 02 (P=1.10 atm). When a catalyst is added to the reaction 2SO^2(g) + O2 (g) = 2SO3 (g) takes place
Calculate the molar solubility of barium sulfate a) in water, and b), in a solution containing 0.60 M of sodium sulfate.
What is the driving force for the rearrangement of intermediate carbocations during the dehydration of alcohols
Pyruvic acid, HC3H3O3, is involved in cell metabolism. It can be assayed for (that is, the amount of it determined) by using a yeast enzyme. The enzyme makes the following reaction go to completion.
How Many minutes will it take to plate out 4.56 g of Ni metal from a solution of Ni^+2 using current of 45.5 amps in an electrolytic cell
Devise tests which allow you to distinguish between the ions in each case.
Arrange the items on the food chain according to increasing mercury levels: microorganisms, people, small fish, and sharks.
SO3 can be produced in the following two-step process: FeS2 + O2 ---> Fe2O3 + SO2 , SO2 + O2 ----> SO3 Assuming that all the FeS2 reacts, how many grams of SO3 are produced when 20.0 g of the FeS2 reacts with 16.0 g of O2?
A student wanted to determine the molar concentration of acetic acid in a commercial vinegar sample. He used a volumetric pipet to deliver 3.00 mL of vinegar to an Erlenmeyer flask, added about 30 mL of water and 3 drops of phenolphthalein indicat..
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