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Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body. Explain the atomic nature of one element and one compound found in human body.
The reaction previously done was just having trans-cinnamic acid reacted with Br2 forming all the isomers with the double bond being broken and Br put into place.
The speed of sound in air is 344 m/s at room temperature. The lowest frequency of a large organ pipe is 30 s-1 and the highest frequency of a piccolo is 1.5 x 104 s-1. Find the difference in wavelength between these two sounds.
Moneybags was found dead on the floor of his study. Investigators found an open bottle of scotch on his desk, and a broken glass on the floor near his body
What is the purpose of the gas trap in the reaction set-up? (Hint: What gas(es) are present?What are their safety issues?)
the rate constant for the second order -reaction is 2NOBr(g)------>2NO(g)+Br2(g) is 48 L/mol*min at a certian temperture. How long will it take for 90.0% of a .0200M solution of NOBr to decompose.
Using the data in your textbook, calculate the concentrations of the molecular and ionic species and the pH in aqueous solution that has a formal composition of 0.0700 M KH2PO4 + 0.5500 M K2HPO4.
Determine what mass of hydrogen is required to form 624g of methanol by the reaction CO+2H2->CH3OH.
calculate the number of moles of AgCrO4(Ksp=9.0x10^12) that will dissolve in 1.00L of 0.010 M K2CrO4 solution. what will be the ion concentrations at equilibrium?
element mercury has a density of 13.6 g/ml. how many kg of mercury could occupy a volume of 500ml?
Which of the acids in question #3 would be the best choice to create a buffer with pH = 7.35? If you had 250.0 mL of a 0.20 M solution of the acid, what mass of the corresponding sodium salt of the conjugate base would be required to make the buff..
How much heat is required to warm 225 grams of ice from negative 46.8 degrees celsius 0 degrees celsius melt the ice, warm the water from 0 degrees celsius to 100 degrees celsius.
Find the standard free energy change in G at 25 C for the following reaction using standard free energies of formation. What is the value of K at 25 C for this process?
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