Reaction: HCl + NaOH → NaCl + H2OEnd pointpH: 8.00PHEquivalence point(using your graphs)pH: 8.5mLVolume of NaOH: 20mLVolume of NaOH: 22 mLDetermine the molarity of NaOH (end point):(show calculation)Determine the molarity of NaOH (equivalence point):(show calculation)What can you conclude about the end point and the equivalence point? Is there a titrationerror?

To determine the molarity of NaOH at both the end point and the equivalence point, we need to use…

Answered: Reaction: HCl + NaOH → NaCl + H2O End…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Write out a chemical equation. (The chemical equation, for example, is NaOH + HCl ® HOH + NaCl.) Explain what the equivalence point is, what the pH is at the equivalence point in this reaction and why the pH is what it is.
HCl and Na2CO3 undergo a neutralization reaction. To neutralize the acid and base, 14.4 mL of 3.2913M HCl is required, and 2.51 mL of 0.9435M Na2CO3 is required. To make sure the volumes of HCl and Na2CO3 neutralize the reaction properly, calculate the pH of the solution to see if the solution is fully neutralized (pH of 7 or close to 7).
QUESTION 1In a NaOH solution [OH-] is 2.9 x 10-4M. Calculate the pH of the solution.(Round-off your answer to two decimal place) QUESTION 2Calculate the pH of 1.0 x 10-3M HCl solution.(Round-off your answer to two decimal place) QUESTION 3Predict the direction of the following reactions in aqueous solution:Write FORWARD (if the shift is from left to right) or BACKWARD (if the shift is from right to left) CH3COOH (aq) + SO4-(aq)↔ HSO4-(aq) + CH3COO-(aq) QUESTION 4Calculate the pH of HNO3 solution whose hydrogen ion concentration is 0.76 M. (Round-off your answer to two decimal place)
This question is concerned with acid/base. The ionic product of water may be taken as 10-14 mol2dm-6. Oxalic acid (HC2CCO2H) is a dibasic acid. On the diagram below, sketch the curve showing the variation of pH when a solution of oxalic acid is neutralized with an aqueous solution of sodium hydroxide of similar concentration. The diagram should be carefully labelled.
100.0 mL of HCI required 25.00 mL of 0.2000 M Mg(OH)2 to reach pH 7. What is the concentration of the HCI ? 2 HCI + Mg(OH)₂ MgCl₂ + 2 H₂O The neutralization equation is There is enough information to calculate the moles of Mg(OH)2 ( L Mg(OH)₂ (- concentration = Then use stoichiometry to convert moles of Mg(OH)₂ into moles of HCI mol HCI a. acid i. 0.2000 p. 0.01000 mol Mg(OH)₂ (- b. base c. HCI d. NaOH mol Mg(OH)2 We now can calculate the concentration of HCI since we have both the moles of HCI and the volume of HCI j. 1.000 k. 0.005000 q. 0.001000 1 L mol HCI LHCI r. 58.31 = mol Mg(OH)2 e. NaCl I. 100.0 f. H₂O m. 0.1000 s. 5.831 = g. 25.00 mol/L n. 0.05000 h. 0.02500 mol Mg(OH)2 o. 2.000 mol HCI
Determine the molar concentrations of Ca2+ and CI- in a 0.38 M calcium chloride solution. 1) 0.38 M Ca2+ and 0.38 M CI- O 2) 00.19 M Ca2+ and 0.38 M CI- 3) 0.38 M Ca2+ and 0.76 M CI- 4) 0.19 M Ca2+ and 0.76 M CI- O 5) None of the above
How many grams (approx.) of pure sodium carbonate are needed to standardize 25.0 mL of 0.20N HCl acid? MM Na2CO3 = 106.0 g/molMM HCl = 36.46 g/mol
If a fifth solution (solution E) is made by mixing 10mL of soln C and 10mL of soln D, how will adding 10 mL of water effect the pH
A solution contains 0.48 mol of HF (pKa = 3.75). 0.24 mol of NaOH are added, and the solution is brought to a final volume of 2 L. Without using a calculator, what is the pH of the solution? A) pH is 3.75 B) pH is less than 3.75 C) pH is greater than 3.75 D) pH is less than 10.25 E) pH is 7.0
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A student is asked to design an experiment that uses indicators to identify which of three unknown solutions labelled X, Y, and Z have pH values of 1.3, 5.7, and 6.9. The student must select a maximum of four indicators from the following list to perform the experiment. 1. orange IV 2. phenolphthalein 3. bromocresol green 4. alizarin yellow R 5. bromothymol blue 6. chlorophenol red 7. cresol red 8. indigo carmine The indicators that will allow the student to identify successfully the pH of the unknown solutions are and List the numbers from lowest to highest.

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