QuestionQuestion

You need to make an aqueous solution of 0.120 M aluminum bromide for an experiment in lab, using a 300 mL volumetric flask. How much solid aluminum bromide should you add?
         grams


In the laboratory you dissolve 12.0 g of aluminum bromide in a volumetric flask and add water to a total volume of 375 mL.
What is the molarity of the solution?
M.
What is the concentration of the aluminum cation?
M.
What is the concentration of the bromide anion?
M.


You wish to make a 0.311 M hydrochloric acid solution from a stock solution of 12.0 M hydrochloric acid. How much concentrated acid must you add to obtain a total volume of 75.0 mL of the dilute solution?
    mL


When aqueous solutions of sodium phosphate and aluminum bromide are combined, solid aluminum phosphate and a solution of sodium bromide are formed. The net ionic equation for this reaction is: (Use the solubility rules provided in the OWL Preparation Page to determine the solubility of compounds.)


Write the net ionic equation for the following molecular equation.
AlBr3 (aq) +Na3PO4(aq) ------> AIPO4(s)+3NaBr(aq)
(Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.)


How many grams of Cu(OH)2 will precipitate when excess KOH solution is added to 77.0 mL of 0.634 M CuCl2 solution?
CuCl2(aq)+2KOH(aq) ------> Cu(OH)2(s)+2KCI(aq)
      g


What volume of a 0.367 M hydrochloric acid solution is required to neutralize 13.2 mL of a 0.169 M barium hydroxide solution?
            mL hydrochloric acid


An aqueous solution of hydrochloric acid is standardized by titration with a 0.169 M solution of barium hydroxide.
If 13.2 mL of base are required to neutralize 27.8 mL of the acid, what is the molarity of the hydrochloric acid solution?
          M hydrochloric acid


Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to standardize strong base solutions. It has the unwieldy formula of KHC8H4O4- This is often written in shorthand notation as KHP.
How many grams of KHP are needed to exactly neutralize 20.0 mL of a 0.394 M potassium hydroxide solution ?
               grams KHC8H4O4


In the laboratory, a student dilutes 13.6 mL of a 7.17 M hydrobromic acid solution to a total volume of 300.0 mL. What is the concentration of the diluted solution?
Concentration =          M

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