Homework Answers
pH of a solution tell about
nature of solutions wether acidic or basic pH values ranges from 0
yo 14
0 to 7 acidic
At pH 7 neutral
7 to 14 basic
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DATA SHEET Solution to test Molarity (except water) Measured pH Calculated pH Water NaCl NaOH HCI...
DATA AND CALCULATIONS A. pH of Acid Solutions: 1. Strong Acid [HCI), [HCI), 2. 21 Measured pH Molarity Calculated p...
DATA AND CALCULATIONS A. pH of Acid Solutions: 1. Strong Acid [HCI), [HCI), 2. 21 Measured pH Molarity Calculated pH 2. Weak Acid [HC,H,O,1 2.92 [HC,H,0,12 3.45 Measured pH Molarity Calculated pH Compare and explain the observed values of pH for these two acids. Which acid pH changed the most on dilution? Explain why (consider the equilibrium occurring)
5. Will the calculated molarity of NaOH be lower or higher if you use tap water...
5. Will the calculated molarity of NaOH be lower or higher if you use tap water rather than deionized water to dissolve the KHP crystals or to rinse down the walls of the flask during the titration? Tap water contains some calcium bicarbonate. The calculated molti O NAOH will be lower lose top water rother thon deionited water to dissolve the crystals 6. Write and balance the equation for a neutralization of a sulfuric acid solution of unknown concentration by...
H2O NaCl Balance the equation for the reaction that occurs in this titration: HCI + NaOH...
H2O NaCl Balance the equation for the reaction that occurs in this titration: HCI + NaOH - ROUGH TITRATION (with 1 mL increments to reach approximate end point) Rough Titration data 0.00 m Initial volume of NAOH (mL); read the buret Final volume of NaOH (m L); read the buret Volume of NAOH used (mL); subtract 13.00 mL 13 00 mL PRECISE TITRATIONS (with drop-by-drop increments to reach precise endpoint) Trial 3 Trial 2 Trial 1 data data data 13.00...
STR Data Standard solution: NaOH concentration 025M volume of initial NaOH buret reading final NaOhH buret readingG TUTHL volume of NaOH used Concentration of HCI Calculations(Show all work and r...
STR Data Standard solution: NaOH concentration 025M volume of initial NaOH buret reading final NaOhH buret readingG TUTHL volume of NaOH used Concentration of HCI Calculations(Show all work and remember your units and significant figures) Determine the Molarity (concentration) of HCl using the data you collected and the titration formula. (The concentration of the NaOH used was 0.25M) Record your answer on your data form. Questions 1. State the purpose of this experiment The ouredse of thrs expetmeot bn of...
how do you determine the molarity of the diluted hcl solution from the data in the...
how do you determine the molarity of the diluted hcl
solution from the data in the table?
.1M Naoh
how do you determine the molarity of the original hcl solution from
the diluted solution?
Show one set of calculations for the determination of the molarity of the diluted HC Partner Name DATA-PARTI in the puce me the balanceschewiowywarin the machine HC with below 9 - - 1 in the table hele anul asterisk. Im maculated Trial 4 Show your calculation...
Name ace Section DATA SHEET: EXPERIMENT 16 Date Determination of NaOH Concentration A. Molarity of HCI...
Name ace Section DATA SHEET: EXPERIMENT 16 Date Determination of NaOH Concentration A. Molarity of HCI solution 1 м Trial #1 Trial #2 Trial #3 A6 mt Volume of acid 2 ml. ml. Final buret reading 12 3. ml. mL mL. Initial buret reading 4 mL mL mL 13 Volume of NaOH 5. mL mL ml Molarity of NaOH 6. M М (Show set-up) HCL 25ML0.08mol Hel mol NaoH lmol HCI 0.035L 7. Average molarity of NaOH 155 O
Na Title: Sample Measured pH of Solution. Additions of 1.OM HCI Initial 3 drops 6 drops...
Na Title: Sample Measured pH of Solution. Additions of 1.OM HCI Initial 3 drops 6 drops 9 drops 12 drops A pH Water 6.43 2.25 2.10 1.98 1.82 Weak Acid: 4.58 3.15 2.85 2.62 241 Weak Base 9.15 9.00 8.878.72 8.64 Buffer: 6.96 6.90 6.78 6.696.55 ApH-Final pH. Initial pH Title: Sample Measured pH of Solution. Additions of 1.0M NaOH 0 drops 3 drops 6 drops 9 drops 12 drops A pH Water 6.49 11.32 11.65 11.79 11.88 Weak Acid:...
Please help, I'm so confused!!!! This is due wednesday night!!! i'm gonna fail :(((( pH of...
Please help, I'm so confused!!!! This is due wednesday night!!!
i'm gonna fail :((((
pH of Buffer Solutions Procedure: Acetic Acid-Sodium Acetate Buffer (pKa acetic acid = 4.75) Weigh about 3.5 g of Na2C2H302 3H2O, record the exact mass, and add to a 250 ml beaker. Measure exactly 8.8 mL of 3.0 M acetic acid (use 10 mL grad cylinder) and add to the beaker containing the sodium acetate. • Measure exactly 55.6 mL of distilled water and add to...
help;( Data Sheet Titration and Buffers Name Date Part One: Buffer Solution (record the results from...
help;(
Data Sheet Titration and Buffers Name Date Part One: Buffer Solution (record the results from the video) Lab Section Number of Drops of HCl added to "water": Color changed from to Number of Drops of HCl added to "buffer": Color changed from to to Number of Drops of NaOH added to "water": Number of Drops of NaOH added to "buffer": _Color changed from Color changed from to Part Two: Titration Results for Acid-Base Neutralization (record the results from the...
pH of a buffer solution pH and Buffers IV pH of a Buffer Solution A.2019 Mass of sodium acetate, CH,COONa, g Mea...
pH of a buffer solution
pH and Buffers IV pH of a Buffer Solution A.2019 Mass of sodium acetate, CH,COONa, g Measured pH Calculated pH buffer solution prepared with dissolved CH,COONa +8.5 mL CH,COOH (aq) 5.54 40 mL buffer + 1.0 mL of 6.0 M HCI (aq) 4/.ces 40 mL buffer + 1.0 mL of 6.0 M NaOH (aq) 5.02 Calculated pH Measured pH 5,54 deionized water 40 mL DI water +1.0 mL of 6.0 M HCI (aq) 1.C03 40...
DATA AND CALCULATIONS A. pH of Acid Solutions: 1. Strong Acid [HCI), [HCI), 2. 21 Measured pH Molarity Calculated pH 2. Weak Acid [HC,H,O,1 2.92 [HC,H,0,12 3.45 Measured pH Molarity Calculated pH Compare and explain the observed values of pH for these two acids. Which acid pH changed the most on dilution? Explain why (consider the equilibrium occurring)
5. Will the calculated molarity of NaOH be lower or higher if you use tap water rather than deionized water to dissolve the KHP crystals or to rinse down the walls of the flask during the titration? Tap water contains some calcium bicarbonate. The calculated molti O NAOH will be lower lose top water rother thon deionited water to dissolve the crystals 6. Write and balance the equation for a neutralization of a sulfuric acid solution of unknown concentration by...
H2O NaCl Balance the equation for the reaction that occurs in this titration: HCI + NaOH - ROUGH TITRATION (with 1 mL increments to reach approximate end point) Rough Titration data 0.00 m Initial volume of NAOH (mL); read the buret Final volume of NaOH (m L); read the buret Volume of NAOH used (mL); subtract 13.00 mL 13 00 mL PRECISE TITRATIONS (with drop-by-drop increments to reach precise endpoint) Trial 3 Trial 2 Trial 1 data data data 13.00...
STR Data Standard solution: NaOH concentration 025M volume of initial NaOH buret reading final NaOhH buret readingG TUTHL volume of NaOH used Concentration of HCI Calculations(Show all work and remember your units and significant figures) Determine the Molarity (concentration) of HCl using the data you collected and the titration formula. (The concentration of the NaOH used was 0.25M) Record your answer on your data form. Questions 1. State the purpose of this experiment The ouredse of thrs expetmeot bn of...
how do you determine the molarity of the diluted hcl
solution from the data in the table?
.1M Naoh
how do you determine the molarity of the original hcl solution from
the diluted solution?
Show one set of calculations for the determination of the molarity of the diluted HC Partner Name DATA-PARTI in the puce me the balanceschewiowywarin the machine HC with below 9 - - 1 in the table hele anul asterisk. Im maculated Trial 4 Show your calculation...
Name ace Section DATA SHEET: EXPERIMENT 16 Date Determination of NaOH Concentration A. Molarity of HCI solution 1 м Trial #1 Trial #2 Trial #3 A6 mt Volume of acid 2 ml. ml. Final buret reading 12 3. ml. mL mL. Initial buret reading 4 mL mL mL 13 Volume of NaOH 5. mL mL ml Molarity of NaOH 6. M М (Show set-up) HCL 25ML0.08mol Hel mol NaoH lmol HCI 0.035L 7. Average molarity of NaOH 155 O
Na Title: Sample Measured pH of Solution. Additions of 1.OM HCI Initial 3 drops 6 drops 9 drops 12 drops A pH Water 6.43 2.25 2.10 1.98 1.82 Weak Acid: 4.58 3.15 2.85 2.62 241 Weak Base 9.15 9.00 8.878.72 8.64 Buffer: 6.96 6.90 6.78 6.696.55 ApH-Final pH. Initial pH Title: Sample Measured pH of Solution. Additions of 1.0M NaOH 0 drops 3 drops 6 drops 9 drops 12 drops A pH Water 6.49 11.32 11.65 11.79 11.88 Weak Acid:...
Please help, I'm so confused!!!! This is due wednesday night!!!
i'm gonna fail :((((
pH of Buffer Solutions Procedure: Acetic Acid-Sodium Acetate Buffer (pKa acetic acid = 4.75) Weigh about 3.5 g of Na2C2H302 3H2O, record the exact mass, and add to a 250 ml beaker. Measure exactly 8.8 mL of 3.0 M acetic acid (use 10 mL grad cylinder) and add to the beaker containing the sodium acetate. • Measure exactly 55.6 mL of distilled water and add to...
help;(
Data Sheet Titration and Buffers Name Date Part One: Buffer Solution (record the results from the video) Lab Section Number of Drops of HCl added to "water": Color changed from to Number of Drops of HCl added to "buffer": Color changed from to to Number of Drops of NaOH added to "water": Number of Drops of NaOH added to "buffer": _Color changed from Color changed from to Part Two: Titration Results for Acid-Base Neutralization (record the results from the...
pH of a buffer solution
pH and Buffers IV pH of a Buffer Solution A.2019 Mass of sodium acetate, CH,COONa, g Measured pH Calculated pH buffer solution prepared with dissolved CH,COONa +8.5 mL CH,COOH (aq) 5.54 40 mL buffer + 1.0 mL of 6.0 M HCI (aq) 4/.ces 40 mL buffer + 1.0 mL of 6.0 M NaOH (aq) 5.02 Calculated pH Measured pH 5,54 deionized water 40 mL DI water +1.0 mL of 6.0 M HCI (aq) 1.C03 40...
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