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The product of this reaction, ozone, is a pollutant in the lower atmosphere. Ozone is an eye and lung irritant and also accelerates the weathering of rubber products. write Lewis strucktures of each
If a solution contains 0.60 mol of OH^-, how many moles of H^+ would be required to reach the equivalence point in a titration?
The isomerization of cyclopropane follows first order kinetics. The rate constant at 700 K is 6.20*10^-4 min-1, and the half life at 760 K is 29 min. Calculate the activation energy for this reactio
What is the expected boiling point of a solution prepared by dissolving 5.83 g of sodium iodide (NaI) and 59.2 g of water (H2O)? For water, Tb=100.00C and Kb=0.512C*m^-1.
How much heat is needed in kJ to convert 878 g of ice at -10°C to steam at 134°C? (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.
Our book shows a radioactive decay series in which a sample that starts out as U-238 eventually winds up becoming non-radioactive Pb-206. The half life for this process is extremely long, being 4.51
The "colbalt treatments" used in medicine for arresting certain types of cancer rely upon the ability of gamma rays to destroy canercous tissues. Cobalt-60 decays with the emission of Beta particles
Describe the physical origins of linewidths in absorption and emission spectra. Do you expect the same contributions for species in condensed and gas phases
The neutrons from one treatment source have an average velocity of 3.4 x 10^7 m/s. If the velocities of the individual neutrons are known to within 2% of this value, what is the uncertainty in this
Acid rain over the Great Lakes has a pH of about 4.5. Acid rain over of the West Coast has a pH of 5.3. How many times more concentrated is the acid in rain over the Great Lakes?
net ionic equation for the reaction of 0.100 M nitrous acid with Barium hydroxide. Calculate the pH of the acid - I'm lost - can you help with the calculations
what are two structural features that allow soap molecule to work in either to have a good soap
Acid rain over the Great Lakes has a pH of about 4.5. Calculate the [H_3O^+] of this rain.
For the strong base solution 4.0×10?3 M Ca(OH)_2, determine [OH^-], [H_3O^+], pH, and pOH.
starting with 1-pentanoic acid and using any other required reagents outline a synthesis for 1-penten-2-ol
A sample of KHP weighed 1.126 g. Titration of this KHP required 20.19 ml of base (NaOH). What is the molarity of the base?
Investigators have reported experimental observation of the He2 ‘complex' (i.e., a very weakly bonded molecule). The fact that the observation required temperatures in the neighborhood of 1 mK
A titration required 16.86 mL of 0.1672 M of NaOH - how many moles are in the volume
If a solution contains 0.60 mol of OH^-, how many moles of H^+ would be required to reach the equivalence point in a titration. Express your answer using two significant figures.
What is the volume of added base at the equivalence point for KOH in mL. b) What is the volume of added base at the equivalence point for CH3NH2 in mL
A radioactive element has a half-life of 2.2 hours. How many hours will it take for the number of atoms present to decay to one-sixteenth of the initial value? Show your calculations
Consider the following solutes and the composition of their aqueous solutions. In which of the following is the composition of the aqueous solution of the solute given
A chemist needs to determine the concentration of a solution of nitric acid, HNO_3. She puts 865 mL of the acid in a flask along with a few drops of indicator.
how do you calculate the hydrogen ion concentration in moles per liter for a solution with at pH value of 11.21? Need the steps please.