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The rate constant for a reaction at 40.0 degrees Celsius is exactly 3 times that of 20.0 degrees Celsius. Calculate the Arrhenius energy of activation for the reaction.
a buffer solution is prepred by adding 5.50g of ammonium chloride and 0.0188 mol of ammonia to enough water to make 155mL of solution a) What is the pH of the buffer
How many milliliters of 1.00 M KOH should be added to 100 mL of solution containing 10.0 g of histidine hydrochloride (His HCl, FM 191.62) to get a pH of 9.30?
Determine How many mg of a 298 mg sample remains unreacted after twenty three days if 32P decompose by a first-order mechanism, half-life = 14.3 days.
Water supply in a city is fluoridated by adding NaF. The preferred concentration of F- is 1.6ppm.calculate the amount of Naf in milligrams should be added per gallon (treated water) if the water supply is 0.2 ppm in F-?
An amphoteric compound exhibits a. acidic properties b. acidic and basic properties c. metallic properties d
aqueous solution of sodium chloride (NaCl). What mass of NaCl would you need to dissolve in 500 g of water to make this solution?
Give a definition of the ?outer. Explain what structural features of the solvent contribute to the value of this term.
A solution containing iodide ions has a percent transmittance reading of 72.3%. what is the molarity of the iodide ion in this solution
what is the rate constant for this reaction at 398 K ? I know that the answer is 1.2 s-1 but I don't know how to get it . Can anyone explain it to me please?
How would the following experimental errors change the calculation of the number of mg of ascorbic acid in fresh orange juice a) student neglected to filter the juice
Choose the answer that shows a correctly balanced equation.
What is the rate law for the reaction? Please show step by step solution.
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