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NO(2) + CO--> NO +CO(2) is 125 Kj/mol and delta E for reaction is -216 kJ/mol. What is the activation energy for the reverse reaction. (NO+CO(2)--> NO(2) +CO
The Ka of a monoprotic weak acid is 7.76 × 10-3. What is the percent ionization of a 0.127 M solution of this acid?
Calculate that how many grams of potassium chloride remain dissolved and how many grams came out of this given solution?
How efficient is the extraction of tea leaves containing 1.0 g of caffeine with two 30-mL portions of chloroform over that of a single step extraction (K25ºC = 8.36)?
when 157 mg. of dipentylamine was added to 122 mg. of benzoic acid and 2 mL of water, a completely homogenous solution was formed. Draw the structure of the species present into the water.
The dry ice is allowed to sublime and the mixture is allowed to return to 25.0 degrees Celsius. what is the total pressure in the flask?
The _______ of a titration occurs when the indicator changes color.
Calculate the hydrogen ion concentration for an aqueous solution that has a pH of 3.45.
How much energy (in kilojoules) is required to convert 285 ml of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 ?
To the alchemists, gold was the material representation of purity. It is a very soft metal that can be hammered into extremely thin sheets. If a 1.07 g piece of gold is hammered into a sheet whose area is 30.0 ft2,
Suppose 10.0 g of CH4 is used in a reaction that can theoretically produce 95.8 g of CCl4. What is the percent yield of CCl4 if the reaction produces only 80.0 g of CCl4.
Calculate the pressure when temperature is increased to 383 0C and volume of container keeps constant?
The solution of iron (III) chloride used in this experiment is 0.02M. Determine the amount of iron (III) chloride hexahrdrate
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