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Balance the equation and calssify the reactions. if an oxidation reduction occurs write the half reactions and identify the oxidizing and reducing agents.
Pb(NO3)2 +H2S ARROW PbS(S) +HNO3 THE NUMBERS ARE SUPOOSED TO BE BELOW THE ELEMENTS
Mg(s)+CO2(g) arrow MgO(s)+ C(s)
HCI(aq) + NH
Conjugated diene addition reaction, a) When HCl is added to 1,3-butadiene either 3-chloro-1-butene or 1-chloro-2-butene forms. Which product is more stable? Explain.
At a certain temperature, the Kp for the decomposition of H2S is 0.726 H2S = H2+S initally only H2S is present at a pressure of 0.126 atm in a closed container.
The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. But given the same kinetic energies, a lighter molecule will move faster than a heavier molecule.
A standard solution was made when 1.276g of pure copper wire (MM= 63.546g/mol) was weighed, dissolved in concentrated HNO3, and diluted to 1.00x102mL. What is the concentration of the stock solution
Aqueous silver nitrate was then added to precipitate the Cl- and Br- ions as AgCl and AgBr. The mass of silver halides obtained was 0.9974 g. What are the molarities of HCl and HBr in the original solution
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 26.50 mL of 0.0502 M NaOH but overshoot the end point, and the solution turns deep pink.
How many grams of sucrose must be added to 320g of water to lower the vapor pressure by 1.5mm Hg at 25 degrees Celcius? The vaporpressure of water at 25 degrees Celcius is 23.8mmHg
Explain why it is important that the glassware and reagents used in a Grignard reaction are completely dry. Write an equation that describes what happens if phenylmagnesium bromide reacts with water.
Give the structure and names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation.
If a temperature increase from 11.0degree C to 20.0degrees C doubles the rate constant for a reaction, what is the value of the activation barrier for the reaction
The halogenation of a hydrocarbon (RH): RH + X2 ? RX + HX may proceed by the mechanism below. Derive the rate law for the mechanism using the steady state approximation. (1) X2 ? 2X (2) X + RH ? R + HX (3) R + X2 ? RX +X (4) R + X ? RX
To extract quinine from an aqueous solution, what pH should be used and why? I'm not sure if you use both pKa's or just one.
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