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    bcaked's Avatar
    bcaked Posts: 2, Reputation: 1
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    #1

    May 4, 2013, 10:51 PM
    Help Chemistry PH and Titration Calculations. Due in 2 days.
    #1. Given the ph of 7 explain how many hydroxide -OH and hydronium H30+ are present in the solution.

    #2. given the molar concentration of .0045 Hydrochloric acid (a strong acid) please calculate the pH of the solution.

    #3. While performing a Titration of Vinegar (acetic acid) to determine its concentration using Sodium Hydroxide the following data was collected.
    150 ml of vinegar with unknown molarity
    45.5 ml of .5 M NaOH added to reach equivalence point
    Determine the Molarity of the vinegar show all work for credit.
    bcaked's Avatar
    bcaked Posts: 2, Reputation: 1
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    #2

    May 4, 2013, 10:55 PM
    Chemistry Reaction Rates and Equilibrium Dues in 2 days.
    #1. Gaseous Hydrogen Iodide is placed in a closed container at 425 C, Where it partially decomposes to Hydrogen and Iodine:
    2HI (g) H2 (g) + I2 (g)
    The following are given:
    [HI] = 2.53 * 10-3 M [H2] = 3.79 * 10-4 M [I2] = 3.79 * 10-4 M
    Show the equilibrium Constant formula
    What is the value of Kc at this temperature? Show all work for credit.

    #2. The two common chlorides of Phosphorus, PCl3 and PCl5, both important in the production of other phosphorous compounds, coexist in equilibrium through
    PCl3 (g) + Cl2 (g) PCl5 (g)
    At 250 C, an equilibrium mixture in a 2.50 L flask contains 0.105 g PCl5, 0.220 g PCl3, and 2.12 g Cl2.
    Show the equilibrium Constant formula
    What are the values of (a) Kc for this reaction? Show all work for credit.
    Curlyben's Avatar
    Curlyben Posts: 18,514, Reputation: 1860
    BossMan
    		  
    #3

    May 4, 2013, 11:30 PM
    What do YOU think ?
    While we're happy to HELP we won't do all the work for you.
    Show us what you have done and where you are having problems..
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