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A rate constant obeys the Arrehnius equation, the factor A being 2.2 * 10^13 s-1 and the activation energy being 150 kj mol -1. What is the rate constant at 227 C, in s-1?
Use arrows to predict what will happen when you react phenyl Grignard (C6H5MgCl) with 3-methyl-2-butanone followed by treatment with HCl and distillation
calculate the heat of fusion of ice if you had 15 grams of warm water at 40 degrees celsius in a styrofoam cup and you
A coffee cup calorimeter contains 28.32 g of water, at 20.2 deg C. Then 79.68 g of water, with an initial temperature of 65.8 deg C, was added to the calorimeter. The final temperature of the water in the calorimeter was 23.5 deg C. What is the he..
Using the Moles of HCL and the mole ratio of the balance equation calculate the moles of NaHCO3 that reacted with the HCL
WHen dimethyl ether (CH3OCH3) is burned, 1450 kj of heat are released per mole. How much heat is released when 3.89 grams of dimethyl ether is combusted
Calculate how many mL of 0.100 M NaOH are needed to neutralize completely 26.0 mL of 0.0300 M acetic acid. 2) Calculate how many mL of 0.100 M NaOH are needed to neutralize completely 36.0 mL of 0.0400 M H2SO4 (forming Na2SO4 and water)
After running the reaction for some time, we collect the product and find a total of 3.1 x 10-3moles of COOH groups. What is the molecular weight of the material? Extent of reaction?
when sodium hydroxide naoh of 4.00 g of was dissolved in water of 150.00 grams a value for deltat of 10.00 degree
The specific heat of the mixture is 4.21 J/(g.c), What is the enthalpy change for the neutralization reaction of 2.80 mol of CsOH in KJ?
Calculate concentrations of H30+ and the pH of each acidic solution. Since HCl is a monoprotic acid, the H30+ concentrations are equivalent to HCl. First do equation: (M con)(V con)=(M dil)(V dil)
A chemist needs a pH 3.5 buffer. Should she use NaOh with formic acid ( Ka =1.8x10-4exp.) or with aceticacid ( Ka = 1.8x10-5 exp)? Why. What os the disadvantage of choosing the other acid. What is the role of NaOH
Determine all concentrations after 15 minutes. What is the chlorine concentration. What is Q after 15 minutes?
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