Post a New Question

Organic Chemistry

posted by .

I am suppose to calculate the theoretical amount (volume) of 3M sodium hydroxide needed to convert 1.5 g of benzoic acid to its salt.
Also calculate the volume of 12M HCl needed to convert the sodium benzoate back to benzoic acid.
how do I go about doing this?
Thanks

  • Organic Chemistry -

    It's a stoichiometry problem. Actually, two of them. I'll do the first and leave the second for you. By the way, the lasrt one I worked almost completely for you BECAUSE I wanted to print it out (with the solution) and put in a notebook I keep. I think benzoic acid is
    C6H5COOH + NaOH ==> C6H5COONa + HOH

    Convert 1.5 g benzoic acid to moles.
    moles = grams/molar mass.
    Using the coefficients in the balanced equation, convert moles benzoic acid to moles of NaOH.(It's 1:1)

    Now convert moles NaOH to volume.
    M = moles/L. You know moles and M, calculate L.

    For the second part, you're going the other way BUT you already now how many moles benzoic acid you started with. The moles of the salt will be the same thing. You can go directly to the last step and convert 12 M HCl to volume needed.

  • Organic Chemistry -

    I'm doing the same thing but I do not understand it fully. All of my general chemistry knowledge is gone.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. organic chemistry

    1)Why benzoic acid is soluble in NaOH? 2)Why HCl is insoluble in titration of benzoic acid and NaOH?
  2. chemistry

    you extract 10 g of benzoic acid from an ether solution with aqueous NaHCO3 what is the min amount of concentrated HCl (37% by w/v%) that would be needed to convert the sodium benzoat back to free energy?
  3. Organic Chemistry

    I realize this is a general chemistry stoichiometry question, however I can not fully grasp it. I am supposed to calculate the theoretical amount (volume) of 3M sodium hydroxide (NaOH) needed to convert 1.5g of benzoic acid to its …
  4. chemistry

    More dilute sodium hydroxide solutions are often prepared from a sastuated sodium hydroxide soltuion that's is 52.0% by mass and has a density of 1.48 g/mL. Calculate the volume, in liters, of this solution needed to prepare 35.0 L …
  5. Chemistry

    Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00?
  6. Chemistry

    Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00?
  7. Chemistry

    Predict whether the following pairs of solute and solvent will result in a solution that completely dissolves. 1. Sodium chloride and water 2. Sodium benzoate and water 3. Sodium benzoate and 1M HCl 4. Benzoic acid and 1M NaOH
  8. Chemistry

    Calculate the volume of 2.45 M NaI that would be needed to precipitate all of the Hg+2 ion from 185 mL of a 2.44 M Hg(NO3)2. AND Calculate the molarity of an acetic acid solution if 47.81 mL of the solution is needed to neutralize …
  9. chemistry

    URGENT!!! How many grams of sodium benzoate (NaC6H5CO2) must be added to 500 mL of 0.15 M benzoic acid (HC6H5CO2) to make a buffer solution with pH of 5.0?
  10. Chemistry

    4) Using your initial mass of copper (0.38), calculate the minimum volume of concentrated 12M nitric acid needed to completely react with your copper to form copper (II) nitrate 5) Using your answer from question 4 (2x10^-3 L), calculate …

More Similar Questions

Post a New Question