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If a temperature increase from 10 °C to 30 °C doubles the rate constant for the reaction, what is the value of the activation barrier for the reaction.(Hint: pick your own initial rate constant for 10 °C)
Is there a good reason to use a clean filter flask when filtering off your crop of recrystallized product
which is a base that has a pKb=5.9 and FW= 121.1g/mole 1) what mass of A do you need? 2) what type of reagent do u need to add? 3) what ratio of the base to its conjugate acid is present in the final buffer
What is the ionization constant of an acid if the hydronium ion concentration of a 0.500 M solution is 1.70 x 10-4 M
how many joules of heat are needed to completely vaporize 24.40 grams of water at its boiling point?given deltahvap
Calculate the average molar mass of this element. The mass of the neutron is 1.67262164 × 10324 g and the mass of the proton is 1.67492721 × 10324 g. Assume for each isotope, the mass defect (that is, the mass of the neutrons and protons that is c..
considering the given equation fe2o3 s 3 co g ? 2 fe s 3 co2 g this is the overall reaction for the production of
Phenol is a weak organic acid with Ka=1.0x10^-10. How many grams of phenol do you need to add to 500. mL of water to make a pH=5.75 solution
in the topic of calorimetry how can bumping be avoided when heating water in a
A 10.0 ml sample of aqueous HCl requires 18.66 ml of 0.206M NaOH to reach the endpoint . What is the molar concentration of HCl ? The chemical equation of the reaction is
Consider the base monosodium phosphate and Write the structure of the conjugate acid of this base- ineffective for extracting C7H6O2 from a diethyl ether solution.
An X-ray photon of wavelength 0.962nm strikes a surface. The emitted electron has a kinetic energy of 944eV. Find binding energy.
Suppose we redefine the standard state as P=2 atm find the new standard state ^Gf values of the following substances
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