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A mixture of sodium salts may enclose one or more of the anions studied in this experiment. All of the salts are readily as well as completely soluble in cold water. While silver nitrate is added to the solution, a precipitate forms. Explain what anions are shown to be conclusively present in the unknown solution? Explain what anions are shown to be the definitely absent? For which anions are the test inadequate to confirm their presence or absence? Anions cl-,I-,SO42-,CO32-,NO3-,PO42-
A steel cylinder with a volume of 19.5 L contains N2 gas at a pressure of 91.0 atm and a temperature at 0 C. Determine the mass of N2 in the cylinder
After 12.76 g of a non-volatile solute was dissolved in 100.0 g of pure toluene, the vapor pressure of toluene dropped from 235 Torr to 187 Torr. Find the molar mass of the solute. Molar mass of toluene is 92.1 g/mol.
How many kilograms of chalcopyrite must be mined to obtain 290. g of pure Cu ?
Write balanced equations of toulene, isopropylbenzene, ethylbenzene, t-butylbenzene with bromine in the presence of dichloromethane
For the reaction A --> B, the activation energy is Ea = 125 kJ/mol and the heat of reaction, H = 50 kJ/mol. What is Ea for the reverse reaction in kJ/mol?
The printed label on a bottle of commercial vinegar states that the acetic acid concentration is 5%. (a) If the manufacturer had reported two significant figures int he concentration, what would the percentage range be so that all values would rou..
strontium-90 and radon-222 both pose serious health risks. sr-90 decay by beta particle production and has a relatively
Would you expect benzene to be more reactive or less reactive than toluene toward electrophilic substitution. explain.
Describe how you will prepare a H2PO4-/HPO42- buffer using solid sodium dihydrogen phosphate and sodium hydrogen phosphate (pH 7.4, 500 mL 0.40M each).
Write balanced net ionic equations for the reactions that occur when the following aqueous solutions are mixed. If no reaction is likely to occur, so indicate.
the volume of a typical bacterical cell is on the order of 1.0 cubic microns. at ph 7.0 how many hydrogen ions are
Can someone continue on what I already have please. Water cannot be used as a solvent for the Diels-Alder reaction between maleic anhydride and 1,3-cyclopentadiene because
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