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Q/Assume your solution contains lead and iron but not silver or nickel. Explain how will you know that:
- Either silver or lead is present ( that is, describe what you will see that will tell you at least one of these is there)
-Lead is present but not silver (how can you tell them apart)
- Either iron or nickel is present
- iron is present but not nickel
Your chemiluminescence reaction will actually occur very slowly in air. What component of air will bring about this reaction and what is its approximate concentration in air? If you had a stoppered flask with basic luminol and then opened it to th..
A 275-g sample of nickel at 100.0C is placed in 100.0 mL of water at 22.0C. What is the final temperature of the water.
A 800 mL sample of a saturated aqueous solution of calcium oxalate, CaC2O4, at 95 degrees C is cooled to 13 degrees C. How many milligrams if calcium oxalate will precipitate?
suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen. what is the limiting reagnant?
using all atoms and bond structure, show an ionization reaction for benzoic acid
Complete the following equation that illustrates a Brønsted-Lowry acid/base reaction. Phases are optional.
A solution is prepared by adding some solid CaF2 to water and allowing the solid to come to equilibrium with the solution. The equilibrium constant for the reaction below is Kc = 3.9x10-11.
Draw both extended and Fischer representation of each of these compounds.
A precipitate resulted when the solution was treated with 6M sodium hydroxide. The precipitate dissolved in ammonia, giving a royal blue solution
A 1.20 gram sample of dry ice is added to a 755mL flask containing nitrogen gas at a temperature of 25.0 degrees Celsius and a pressure of 725 mmHg. The dry ice is allowed to sublime and the mixture is allowed to return to 25.0 degrees Celsius. wh..
Write the cell reaction and electrode half-reactions, and calculate the standard potential for each of the following cells: a) Pt|Fe3+(aq),Fe2+(aq)||Sn4+(aq),Sn2+(aq)|Pt
A system absorbs 295 kJ of heat and the surroundings do 177 kJ of work on the system. What is the change in internal energy of the system?
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