College Chemistry

posted by .

i measured out 2 different tared mass of TUMS sample. One is 0.1554g and the other 0.1546g.

Then i did two titrations with the conclusion of one being 17.91mL of NaOH and the other 17.47mL

my question is: "if you consumed two 1.00g tablets of TUMS, how many moles of acid would be neutralized"??

this is a back titration of standardized HCl with Sodium Hydroxide solution

  • College Chemistry -

    You didn't provide the volume or M of the HCl and you must have that to answer this question.
    You added an excess of HCl. How much HCl did you add? moles HCl = M x L = ?
    Then you back titrated with NaOH. mols NaOH = M x L = ?
    The difference in moles = moles of acid consumed by the TUMS. I would calculate each titration separately and divide the final result of each by the mass of the original sample which should give you moles H^+/grams and that times 2 will give moles/2 grams.

  • College Chemistry -

    the volume and M of HCl is 0.1312M and 150mL

    how do i find then excess of HCl

  • College Chemistry -

    What volume of 0.1125 M K2Cr2O7 would be required to oxidize 48.16 mL of 0.1006 M Na2SO3 in acidic solution? The products include Cr3+ and SO42- ions.

  • College Chemistry -

    FDAS

  • College Chemistry -

    fgbkwbfkw

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. College-Chemistry

    NaOH(s)+ H2SO4(aq)=Na2SO4(aq) + H2O(l) Consider the unbalanced equation above.A 0.900 g sample of impure NaOH was dissolved in water and required 37.0 mL of 0.145 M H2SO4 solution to react with the NaOH in the sample. What was the …
  2. Chemistry

    I am doing a lab online and have no clue on how to get started with the following questions?
  3. acid and base titrations

    Which of the following solutions should be used when titrating a 25.00mL sample of CH3COOH that is approximately 0.1 M?
  4. mc questions

    Question # 1-What is the magnitude of the momentum of a particle of mass 2 kg with a speed of 5 m/s?
  5. chemistry

    A TUMS tablet was dissolved in 110.00 ml of 0.1022 M HCl and analyzed for CaCO3 according to the procedure described in the lab manual. It took 7.48 ml of 0.1005 M NaOH to reach the endpoint. Calculate the mass of CaCO3 in TUMS tablet …
  6. Chemistry

    What effect would be on the normality of unknown acid?
  7. Language Arts

    How are the speakers in the two poems different?
  8. Science

    Imagine Two Artificial Satellites Orbiting Earth At The Same Distance. One Satellite Has A Greater Mass Than The Other One?
  9. Chemistry

    Determine the mass of CaCO3 in your TUMS tablet?
  10. Chemistry

    A SAMPLE OF ANTIMONY, Ar=121.8, WAS ANALYSED AND WAS FOUND TO CONSIST OF 60% OF 121Sb AND ONE OTHER ISOTOPE. DETERMINE THE MASS NUMBER OF THE OTHER ISOTOPE IN THE SAMPLE OF ANTIMONY. please help I'm really stuck,

More Similar Questions