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Problem- 1) What is the solubility of lead chloride (PbCl2) in 0.505 M NaCl (aq)? The Ksp of PbCl2 = 2.4 x 10-4.
2) If 0.20 M NaOH was added dropwise to a solution containing 0.35 M Ca(NO3)2 and 0.50 M Fe(NO3)2, which would precipitate first, Ca(OH)2 or Fe(OH)2 ? The Ksp of Ca(OH)2 = 8 x 10-6 and the Ksp of Fe(OH)2 = 1.6 x 10-14. Justify your answer by giving the maximum hydroxide concentration for both Ca2+ and Fe2+ before precipitation would begin. Be sure to show your work.
Illustrate all work utilize additional paper if required.
for the reaction n2g 2 o2g 2 no2g kc 8.3 times 10-10 at 25degc. what is the concentration of n2 gas at equilibrium
What is the pH of a solution prepared by mixing 50 ml of a .01055 M solution of lactic acid with 30 ml of a .0125 M NaOH. ka for lactic acid = 1.4E-4. What is the new pH if you add 15 ml more of the NaOH to the above solution
The first ionization energy of lead (Pb) is 716 kJ/mol. If a Pb atom is ionized using a photon of ultraviolet radiation having an energy of 1.987E-18 J, what is the amount of leftover energy that goes into the kinetic energy of the ejected electro..
Please review the occurrence and cycling of calcium in nature, along with its use. Analyze and evaluate the article as to it's contemporary relevance regarding the elements availability, health implications and environmental impact.
While 111g of 2-methyl-2-propanol was heated with phosphoric acid, a colorless gas evolved. This gas was passed through a CCl4 solution containing 0.16 g Br2 per mL solution. Exactly 1.0 L ofthe solution was discolored by the gas generated in ther..
125 mL of H2O is initially at room temperature(22°C). A chilled steel rod at 2°C is placed in the water.If the final temperature of the system is 21.3°C, what is themass of the steel bar
What small molecule is eliminated during the dehydration reaction when acetaldehyde is heated in the presence of KOH
What is the IUPAC name for a molecule with a tert-butyl chain binded to the 3rd carbon of a cyclopentane, with an OH at the top (on first carbon)
One of the product formed when 5-hexen-1-ol is treated with a catalytic amount of sulfuric acid is a cyclic ether
Problem- Pressurized carbon dioxide inflators can be used to inflate a bicycle tire in the event of a flat. These inflators use metal cartridges that contain 16.0 g of carbon dioxide.
The pH of 0.325g of aspirin (Molar mass 180.2) tablet in 0.5L water is 3.03, What is the pKa for weak, monoprotic acid aspirin? do not disregard x
In 1992 1/3 of the homes in Chicago was found to have a lead concentration of 10 ppb. If you lived in one of these homes and dranl 2 L of tap water a day, Explain what is the total mass of lead you have ingested per year
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