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Problem: Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.
a. 0.0200 mol of sodium phosphate in 10.0 mL of solution
b. 0.300 mol of barium nitrate in 600.0 mL of solution
c. 1.00 g of potassium chloride in 0.500 L of solution
d. 132 g of ammonium sulfate in 1.50 L of solution.
an equilibrium mixture at 727ordm? contains 0.276 mol h2 0.276 mol co2 224 mol co and 0.224 mol h2o. co2 g h2 g ? co g
Zinc metal can be getting from zinc oxide by reacting the oxide with the element carbon. The products of the reaction are Zn and CO2. Explain what mass of zinc oxide is needed to react completely with 5.31 mol of carbon
A sample of nitrogen gas is contained in a pistol with a freely moving cylinder. At 0.0 C , the volume of the gas is 375 ml. To what temperature must the gas be heated to occupy a volume of 500.0ml
Describe three ways to could make and acetic acid/acetate buffer with acetic acid, sodium acetate, deionized water, a solution of hydrochloric acid and a solution of sodium hydroxide.
A 0.204 g sample of a CO3^2- antacid is dissolved with 25.0 mL of a 0.0981 M HCl. The hydrochloric acid that is not neutralized by the antacid is titrated to a bromophenol blue endpoint with 5.83mL of 0.104 M NaOH. a) Calculate the number of moles..
If the formula weight (g/mole) of acetate is 136.1 g/mole, how many grams do you need to make 100ml of a 0.1M buffer
A sample of material contains contains 20 mg of Iodine ^131. Calculate: A) The number of I ^131 atoms initially present. B) The activity in becquerels and curies.
How the two solutions are properly mixed together? What is the role of the meniscus in this process?
You are the chief environmental officer of an industrial operation of your choosing. Describe your operation, its different components or stages, the materials used and the type of wastes generated.
A 0.456 gram sample of an unknown monoprotic acid (lets call it HZ) was dissolved in some water . Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
The solubility of oxygen in water at 25 C and 1.0 atm pressure of oxygen is .041 g/L. The solubility of oxygen at 3.0 atm and 25 C is what
a balloon is filled to a volume of 7.00x102 ml at a temperature of 20.0 degrees c. the balloon is then cooled at
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