Honors Chemistry

posted by .

1. .0025 M tartaric acid completely reacts with .0030 M of Al bicarbonate if .913 l of CO2 forms at 298 Kelvin with pressure of 1.4 ATM how much base used?


2. 3.1 x 10^23 molecules of .0035 M hydriodic acid reacts with 25 grams of magnesium bicarbonate how much carbon dioxide if at stp?



3. 50.0 mL of lead (II) phosphate reacts with enough ammonium chloride. Following data collected. What is molarity of lead phosphate solution?

T1 1.56
T2 1.67
T3 1.51


4. What is ph and poh of solution made by adding 500 ml of water to 250 ml of 7.5 x 10^-4 M of NaOH?

  • Honors Chemistry -

    I see you've posted this a number of times. What is it you don't understand? Perhaps I can get you started.

  • Honors Chemistry -

    This is a few of my final review questions. I basically just need to know the steps for each one because my teacher doesn't explain them very well. I would really appreciate some help.

  • Honors Chemistry -

    Please I really need your help here, you seem to be very knowledgable in the subject.

  • Honors Chemistry -

    Is #1 Al bicarbonate? You need to write the formula or the full name; otherwise it doesn't make sense. I'll assume Al(HCO3)3. I'll call tartaric acid H2T.
    2Al(HCO3)3 + 3H2T ==> Al2T3 + 6CO2 + 6H2O
    How many mols CO2 were formed? Use PV - nRT, substitute the conditions and solve for n = number of mols. Convert mols CO2 to mols Al(HCO3)3 by using the coefficients in the balanced equation. The M bicarbonate = mols/L. You have mols and M, solve for L. (Note: you have no volume given for H2T even though that appears to the the limiting reagent from the way the problem iks stated.)
    2.

  • Honors Chemistry -

    2. 3.1 x 10^23 molecules of .0035 M hydriodic acid reacts with 25 grams of magnesium bicarbonate how much carbon dioxide if at stp?

    This is a limiting reagent problem.
    Mg(HCO3)2 + 2HI ==> MgI2 + 2H2O + 2CO2
    mols HI = #molecules/6.02E23 = ?
    mols Mg(HCO3)2 = grams/molar mass.

    Using the coefficients in the balanced equation convert mols HI to mols of the product.
    Do the same for mols Mg(HCO3)2.
    It is likely that the two answers for mols of the product will not agree; therefore, one of them must be wrong. The correct answer in limiting reagent problems is ALWAYS the smaller value and the reagent producing that number is the limiting reagent. The problem doesn't tell us the units so mols may be sufficient. If you want grams, that is mols x molar mass = grams. If you want volume, that is mols x (22.4L/mol) = L CO2.

  • Honors Chemistry -

    #3. What's the significance of T1, T2, T3? You don't have units on the other numbers

  • Honors Chemistry -

    mols NaOH = M x L = ?
    (NaOH) = (OH^-) = moles/L soln

    pOH = -log(OH^-)
    For pH,
    pH + pOH = pKw = 14. You know pOH and pKw, solve for pH.

  • Honors Chemistry -

    Thank you very much!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. AP chem

    a 2L container is charged with 2atm of O2 at 298 Kelvin. Ch4(g) + 2O2(g) --> CO2(g) + 2H20(g) calculate the partial pressure of methane needed to react completely with the O2 in the vessel. What is the total pressure after the reaction …
  2. Chemistry

    In a fixed volume container, 6*10^23 molecules of a gas exert a pressure of 12 N/m^2. If 12*10^23 molecules of gas were added to the container, what would the pressure become?
  3. Chemistry

    In a car engine, gasoline (represented by C8H18) does not burn completely, and some CO forms along with CO2 and H2O. If 5 percent of the gasoline forms CO, A)What is the ratio of CO2 to CO molecules in the exhaust?
  4. chem

    Some sulfuric acid is spilled on a lab bench. It can be neutralized by sprinkling sodium bicarbonate on it and then mopping up the resultant solution. The sodium bicarbonate reacts with sulfuric acid as follows. 2 NaHCO3(s) + H2SO4(aq) …
  5. chemistry

    The reaction of calcium bicarbonate, Ca(HCO3)2 with hydrochloric acid, HCl, produces a solution of CaCl2, gaseous carbon dioxide, CO2, and water, H2O. Write a balanced chemical equation for this reaction and determine the volume of …
  6. Chemistry

    URGENT!!!!! 4 questions total! 1. .0025 M tartric acid completely reacts with .0030 m of al bicarbonate if .913 l of co2 forms at 298 k with pressure of 1.4 ATM how much base used?
  7. SUPER URGENT-- CHEMISTRY

    1. .0025 M tartric acid completely reacts with .0030 m of al bicarbonate if .913 l of co2 forms at 298 k with pressure of 1.4 ATM how much base used?
  8. Chemistry

    At 298 K, the Henry\'s law constant for oxygen is 0.00130 M/atm. Air is 21.0% oxygen.At 298 K, what is the solubility of oxygen in water exposed to air at 1.00 atm?
  9. Analytical Chemistry

    Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the equilibrium equation. CO2(g) <----> CO2(aq) The acid dissociation constants listed in most standard reference …
  10. Chemistry

    One reaction of iron with hydrochloric acid is represented by the following thermochemical equation. Fe(s) + 2HCl(aq) ?

More Similar Questions