Question 5 4 pts
Consider the following salts and corresponding Ksp values at 25°C:
1. silver chromate, Ag2 CrO4(s), Ksp = 1.12 x 10-12
II. silver carbonate, Ag2CO3(s), Ksp = 8.46 x 10-12
III. silver chloride, AgCl(s), Ksp = 1.77 x 10-10
A. Identify the salt with the smallest molar solubility in water.
silver chromate
B. Identify the salt with the largest molar solubility in water.
silver carbonate
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A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.

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Each step in the following process has a yield of 70% ch4 + 4cl2 yield ccl4 +4hcl ccl4 + 2hf yield ccl2f2 + 2hcl of 4.50 mole ch4 reacts what is the total amount of hcl produced