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The lid is tightly sealed on an empty 2.0L soda bottle at 25.0 degrees Celsius and 732 mm Hg. If the bottle is heated to 100.0 degrees Celsius, what is the pressure in the bottle?
What volume of 0.200M Hydrochloric acid must combined to 250mL of 0.300M C8H7NaO3 to produce a buffer of solution with a pH of 3.37?
Explain solubility rules used to predict precipitation reactions. Predict if precipitation occurs in the mixing reactions of the following aqueous solutions
If you wanted to prepare a 1.45 L buffer with a total phosphate concentration of 0.0500 M, how many grams of NaH2PO4 and Na2HPO4 would you mix together? How many grams of conjugate acid do you need? How many grams of conjugate base do you need?
Determine How many grams of NaOCl are in the solution if the percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%.?
Determine hydroxyl and hydrogen ion concentration in this solution. (if Ka for ammonium ion = 5.0 x 10^-10.)
A solution is prepared by dissolving 11.5 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 10.00 mL sample of this stock solution is added to 52.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
compare the number of valence electrons in an atom of oxygen, O , with the number of valence electrons in an atom of selenium in the same period or group.
Determine mass of water is contained in 2.8 Litres of the vapor in this solution at 55 degree celcius temperature express your answer in grams
If the metal crystallizes in a body-centered cubic structure, which choice is closest to the atomic mass?
The major isotopes of tungsten are 182W (26.32%), 183W (14.31%), 184W (30.67%), and 186W (28.62%). What is the atomic weight of W?
If a chemistry student collected 834 mL of gas at 25 degrees C and 8.00 x 10^2 torr, how many moles did she collect?
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution
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