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Given the Ksp values for PbCl2 of1.6*10-5 at 25oC and 3.3*10-3 at80oC, if 1.00mL of saturated PbCL2(aq) at80oC is cooled to 25oC,will a sufficient amount of PbCl2(s) precipitate to be visible? Presume that you can detect as little as 1 mg of the solid.
Draw constitutional isomers of C5H8 that are terminal and internal. Name each molecule according to IUPAC.
The ternary compounds called chlorofluorocarbons, or Freons, have proved to be very valuable as refrigerants and as cleaning agents for circuit boards. Unfortunately, in the atmosphere these compounds produce chlorine atoms that catalyze the decom..
How to determine if HCl is Hydrochloric acid or Hydrogen chloride. Professor said acids should be in the presence of "something"
Determine the balanced net ionic equation when aqueous solutions of AgNO3 and NaI are mixed. The balanced net ionic equation is:
the pressure inside a soda bottle is two atmospheres 1520mmhg. if exactly half this pressure is generated by co2what is
For the decay of 226 Ac by all processes combined, the first-order rate constant is k = 0.556 d^- 1. How many days are required for 76.0% of a sample of 226 Ac to decay? equation to use is ln(n/no)=-kt
Tungsten crystallizes in a body-centered cubic unit cell with an edge length of 317pm. Explain what is the length in pico meters of a unit cell diagonal that passes through the center atom
A 500.0 mL sample of 0.200 M sodium phosphate is mixed with 400.0 mL of 0.237 M barium chloride. what is the mass of the solid produced
luminol has a molecular weight of 177 gmol. the forensic technician at a crime scene has just prepared a luminol stock
100 moles of water at 70 degrees celsius is brought into thermal contact with 100 moles of a monatomic gas at 20 degrees celsius, and the two substances exchange heat until they reach the same temperature. Assuming that no heat is lost to the surr..
If the colder block originally weighed 200g and the warmer one 100g, calculate the final temperature and the entropy change of the universe for this process.
when optically active r-2-bromooctonealpha39.6omicron was allowed to react with amixture of water and ethanol
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