{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Measurement 6B

# Measurement 6B - Stoichiometry Date Performed Date...

This preview shows pages 1–4. Sign up to view the full content.

Stoichiometry Date Performed: 10/16/08 Name: Neal Moriconi Date Submitted: 9/23/08 Partner: Stephen Hunter Instructor: Diaqiang Xu Stoichiometry Objective: The purpose of this experiment is to determine the stoichiometry of the reaction between sodium hypochlorite (NaClO) and potassium iodide (KI) in aqueous solution. Experimental Data: Vol NaClO (ml) Vol KI (ml) Temperature initial NaClO ( C) Temperature initial KI ( C) Temperature final ( C) 45 5 23.71 23.55 26.55 40 10 23.88 24.61 24.03 35 15 24.02 23.32 31.17 30 20 24.01 23.12 29.72 25 25 24.02 23.03 28.81 20 30 24.05 22.89 27.55 15 35 24.11 22.98 26.43 10 40 24.09 23.22 25.38 5 45 24.16 23.44 24.34 Sample Calculation: Mole fraction NaClO = + moles of NaClOmoles of NaClO moles of KI = Volume NaClOVolume + NaClO Volume KI EX) . . + . 45 045 0 5 0 = 0.9 T Initial = + ( )( + ) T1V1 T2V2 V1 V2 EX) ( . * . )+( . * . )( . + . ) 23 710C 45 0ml 23 550C 5 0ml 45 0ml 5 0ml = 27.9618 C ≈27.96 C ΔT = T final - T initial EX) ΔT = 26.55 C –23.69 C = 2.86 C

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Stoichiometry Results and Conclusions: Vol NaClO (ml) Vol KI (ml) Mole fraction of NaClO Initial Temp ( C) Final Temp ( C) Delta T ( C) 45 5 .9 23.69 26.55 2.86 40 10 .8 24.03 24.03 0.00 35 15 .7 23.81
Stoichiometry 31.17 7.36 30 20 .6 23.65 29.72 6.07 25 25 .5 23.53 28.81 5.29 20 30 .4 23.35 27.55 4.20 15 35 .3 23.32 26.43 3.11 10 40

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern