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The rate constant for a reaction increases by a factor of 1.41 when the temperature is increased from 20 °C to 27 °C. What is the activation energy of the reaction
Calculate the energy in joules and calories required to heat 40.0 silver (Ag) from 112 C to 270 C
How many grams of NaOH would you add to a 600mL solution of 0.25M acetic acid in order to achieve a pH of 5.0
Calculate the pH during the titration of 32 mL of 1.149 x 10-1 M NaOH with 1.161 x 10-1 M HBr solution after the following additions of acid.
what would the concentration of copper be in a solution created by combining 10ml of it with 10 ml of the 0.100M copper (II)sulfate solution?
(Calculate using the given masses.) lighter isotope amu heavier isotope amu (c) Determine the average molecular mass of a Br2 molecule. amu (d) Determine the average atomic mass of a bromine atom. amu (e) Calculate the abundances of the two isotop..
the density of liquid water at 0 degrees celsius is 0.9987 grams per centimeter cubed the density of ice at the same
Draw the following peptides, AND indicating the amide bonds that are formed through the side chains. What are the pKa values of the various groups on the peptide?
Rate Constant with Temperature Changes, Rearrangement of methyl isonitrile to acetonitrile has activation energy of 25.0 kJ/mol and a rate constant of 8.1*10^-4s-1 @ 80 Celsius.
determine how much energy will be required to heat 69.7 gal of h2o from 22 degree celsius to 110 degree celsius if it
Copper has two naturally occurring isotopes,63Cu (isotopic mass 62.9396 amu) and 65Cu (isotopic mass 64.9278 amu). If copper has an atomic mass of 63.546 amu, what is the percent abundance of each isotope?
A container is filled with 4.0 X 10^22 O2 molecules at 5 degrees C and 845 mmHg. What is the volume, in mL, of the container
a robust first grader goes for swimming lessons three times a week and he enjoys it thoroughly. during the first week
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