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Describe the energy changes in a reaction
The half-life for a first-order reaction is known to be 379 seconds at a given temperature. What is the rate constant at this temperature?
Calculate the relative amounts of 1-chloropropane and 2-chloropane obtained the radical chlorination of propane
If a student weighed out a 500. mg tablet of vitamin C, measured to the nearest 0.001g and recovered 0.254g of ascorbic acid. What is the percent mass of vitamin C in the tablet
Calculate the molarity of a solution made by taking 25.0 mL of 3.95 M. CaCl2 and diluting it to a final volume of 200. mL
A 0.146 g sample of an unknown monoprotic acid (molar mass = 83.0 g/mol) was dissolved in 50.0 mL of water and titrated with a 0.101 M NaOH solution. After the addition of 14.0 mL of base, the pH was 5.12. What was the Ka for the unknown acid
What are the products expected to be formed in good yeild in the reaction 2-methyl-1-hexene is treated with a dialkylborane prepared from borane and an optically active sample of alpha-pinene, and then wit basic hydrogen peroxide.
What is the pH of a solution in which 323 mL of HCl(g), measured at 26.8 degrees Celsius and 1.02 atm, is dissolved in 1.5 L of aqueous solution?
If the yellow molecules have a molecular mass of 50 {\rm amu}, what is the molecular mass of the blue molecules
The rate constant for this reaction at 25 degrees C is 4.9 x10-6 L/(mol s) while the rate constant at 35 degrees Cis 1.5 x 10-5 L/(mol s). Use this data to calculate the energy of activation for this reation.
answer the following questions for the soil data listed below.nbspnbspnbspnbspnbspnbspnbspnbsp exchangeable cations
A solution was prepared by dissolving 5.76g of KCL*MgCl2*6H2O (277.85g/mol) in sufficient water to give 2.000L
Use the reactions below and their equilibrium constants to predict the equilibrium constant for the reaction, 2A(s) 3D(g).
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