Don't use AI. 69. A major ion in biological systems whichclearly has a profound effect on the AG forATP hydrolysis is: with explanation.(a) Mg2+(b) Na(c) K(d) Ca

Detailed explanation:Correct Answer: (a) Mg²⁺ Explanation:ATP (adenosine triphosphate) is the…

Answered: 69. A major ion in biological systems…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter14: Principles Of Neutralization Titrations

Section: Chapter Questions

Problem 14.25QAP

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A substance that functions to prevent rapid, drastic changes in the pH of a body fluid by changing strong acids and bases into weak acids and bases is called an: a.salt. b.buffer. c.enzyme. d.coenzyme.
. How is the strength of an acid related to the fact that a competition for protons exists in aqueous solution between water molecules and the anion of the acid?
Consider citric acid, H3C6H5O7, added to many soft drinks. The equilibrium constants for its step-wise ionization areKa1=7.5104 ,Ka2=1.7105, andKa3=4.0107. Write the overall net ionic equation and calculate K for the complete ionization of citric acid.
n aqueous splution contaiOS 0.100 M NADHH at 25.0°C. the PH of the gokution is
(a) Ionic Solids do not dissolve in non-polar solvents. (TRUE OR FALSE) (b) H3AsO4 is a weak acid. (TRUE OR FALSE) (c) Once a chemical reaction has come to equilibrium, the reaction comes to a complete halt.(TRUE OR FALSE)
2. The reaction of an acid (such as HCI) and a base (such as NaOH) is called: (a) hydrolysis (b) esterification (c) chelation (d) neutralization
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(d) Explain two industrial applications of acidic buffer solutions.
HF(g) + H,O(1) H,0*(aq)+ F"(aq) K = 1.1 x 10-3 F (aq) + HF(g) HF;(ag) K= 2.6 x 10- a. Is fluoride in pH 7.00 drinking water more likely to be present as F"(aq) or HF2 (aq)? O HF2 (aq) O F(aq) b. What is the equilibrium constant for this equilibrium? Number 2 HF(g) + H,0(1) H,0*(aq) + HF, (aq) c. What are the pH and equilibrium concentration of HF2" in a 0.150 M solution of HF? (HF, - Number Number pH = M Check Answer View Solution
7. (a) Predict whether, KCN, potassium cyanide will form an acid, base or neutral solution. (b) Calculate the pH of a 0.500 M solution of KCN. K, for HCN is 5.8 x 10-". 14 INQ
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69. A major ion in biological systems which clearly has a profound effect on the AG for ATP hydrolysis is: with explanation. (a) Mg2+ (b) Na (c) K (d) Ca