7,8 5. If the pKa of HCOOH is 3.74 and the pH of an HCOOH/NaHCOO solution is 3.11,which of the following is TRUE?A) [HCOOH]<[NaHCOO]B) [HCOOH] = [NaHCOO]C) [HCOOH]> [NaHCOO]D) It is not possible to make a buffer of this pH from HCOOH and HCOO.6. Which of the following is TRUE?A) The equivalence point is where the amount of acid equals the amount of baseduring any acid-base titration.B) At the equivalence point, the pH is always 7.C) An indicator is not pH sensitive.D) A titration curve is a plot of pH vs. the [base]/[acid] ratio.E) None of the above are true.7. When a weak acid is titrated with a strong base, the pH at the equivalence pointis alwaysa. 7b. <7c. > 7d. <1e. > 4blos gnoua doum oor gnibbs yd bovoutash8. Consider the Ka values for the following acids:Cyanic acid, HOCN, 3.5 x 10-4Formic acid, HCHO₂, 1.7 x 10-4Lactic acid, HC3H5O3, 1.3 x 10-4Propionic acid, HC,H,O2, 1.3 x 10-5Benzoic acid, HC₂H5O2, 6.3 x 10-5Which has the strongest conjugate base?a. HOCNb. HCHO₂ c. HCHO, d. HC,H,O,3e. HC₂H₂O₂

#7) in the titration of a weak acid with a strong base , salt of weak acid & strong base is…

Answered: 7. When a weak acid is titrated with a…

7. When a weak acid is titrated with a strong base, the pH at the equivalence point is always a. 7 b. <7 C. > 7 d. <1 e. > 4 Hq

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...

See similar textbooks

Similar questions

8:35 A moodle.nct.edu.om P Flag question Answer the following questions by using mole concept. (a) Calculate the molarity of a 105 g NazSO4 in 570 ml solution. [Atomic mass: Na=23 g/mol, S= 32 g/mol, O=16 g/mol, C=12 g/mol, H= 1 g/mol] (a1)no of moles of Na,SO4 (a2) molarity of solution (b) 29 g C6H12Og is dissolved in 210 g of water. Find out the molality of the solution. (b1) no of moles of CeH1206 (b2) molality of solution (c) How much volume of 1.9 M NaOH solution can be made by diluting 74 ml of 4 M NaOH. (d) Aspirin (CgHgO4) is a medication used to reduce pain, fever, or inflammation. Find out the mass of 3.5x1023 molecules of aspirin in gram. (d1) no of moles of Aspirin (d2) mass of aspirin Question 28 -> 11 •.. +
2.) Five standardized dilutions of aqueous lead(II) chromate solution were prepared by adding a volume of 0.0010 M PbCrOa(ag) from a buret and then diluting the solution with deionized water to a total volume of 100.0 mL. Use the provided information to determine [CrO42] in each. Hint: enter the decimal before the scientific notation. Mixture Initial Buret Reading (mL) Final Buret Reading (mL) [CrO4?] (M) 5 16.83 42.60 ? x 104
More than 40% of the world's population has limited access to clean water. One proposed method for the production of clean water involves removing salt from seawater. Which technique would be used to separate the salt from the saltwater mixture?
The metal has a molar mass of 206.77 gmol and crystallizes in a body centered lattice and has a density of 14.1 gcm3. The edge length of this cube is [word1] pm. (1 pm = 1 x 10-10 cm)
It keeps telling me I have the wrong answer, am I inputting it incorrectly??
Substance A is a liquid at room temperature, dissolves substance B, and the resulting solution can conduct electricity. Substance C does not dissolve in substance A. Which of the following statements correctly identifies the substances? Substance A and B are ionic, and substance C is non-polar. Substance A is polar molecular, substance B and Substance C are ionic. Substance A is polar molecular, substance B is ionic, and Substance C is non- polar. All three substances are polar. Substance A is non-polar molecular, substance B is polar, and Substance C is polar.
PLEASE PROVIDE DETAILED SOLUTION AND GIVE THE EXPLANATION OF CORRECT AND INCORRECT OPTIONS....
2 OH MeO OTBS MeO OTBS Me Me 3 HO Me 4
Use the following atomic masses (in g/mol): Mg = 24.31; O = 16; Ca = 40.08; C = 12.01; Na = 23; H = 1; N = 14.01; S = 32.06; Cl = 35.45 In the assay of NaHCO3, 3.0g of the solid is dissolved in 25mL water. What is the normality? How many mL of 1N H2SO4 will be required to neutralize this solution? From this volume of acid, compute the percent purity of NaHCO3.
Balence the equation
Ni (s) + Cu,SO, (aq) >