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Consider the following equilibrium between 2-methylpropanoic acid (K, -1.610-5) and its conjugate base: o consenton Crypto...
Consider the following equilibrium between pentanoic acid (Kx = 1.610-5) and its conjugate base: CHACH, CHA + H20 = CHSCHACHACHE + H30 CH3CH2CH2CH2C-OH CH2CH2CH2CH2C0- (1) Will raising the pH shift the equilibrium to the right or to the left? (2) Calculate the ratio of the concentration of pentanoate ion to the concentration of pentanoic acid at a pH of 6.81. ratio (conjugate base] / [acid] Submit Answer Retry Entire Group 8 more group attempts remaining Previous Next
Consider the following equilibrium between 2-ethylbenzoic acid (K4 = 4.0x10-5) and its conjugate base: он + HOP 0 + H20 CH2CHE CH2CH3 (1) Will lowering the pH shift the equilibrium to the right or to the left? (2) Calculate the ratio of the concentration of 2-ethylbenzoate ion to the concentration of 2-cthylbenzoic acid at a pH of 1.93 ratio (conjugato base]/(acid) - Submit Answer Retry Entire Group 8 more group attempts remaining Cero Next
1. The formula for the conjugate acid of CO,is 2. The formula for the conjugate base of HPO42- is Submit Answer Retry Entire Group 9 more group attempts remaining
Calculate the hydronium ion concentration in an aqueous solution of 4.95x10-2 Mascorbic acid, H,CH/06 (aq). [H30]= Submit Answer Retry Entire Group 9 more group attempts remaining Calculate the concentration of CH 062. in an aqueous solution of 8.83x10-2 M ascorbic acid, H,CH,06 (aq). [CH,062= M. Submit Answer Retry Entire Group 9 more group attempts remaining
Calculate the hydronium ion concentration in an aqueous solution of 4.95x10-2 Mascorbic acid, H,C6H 06 (aq). [H30*]= Submit Answer Retry Entire Group 9 more group attempts remaining Calculate the concentration of HCH.00 in an aqueous solution of 0.0713 M ascorbic acid, H,CH,06 (aq). [HC H/06)= M. Submit Answer Retry Entire Group 9 more group attempts remaining
A buffer is composed of formic acid and its conjugate base, the formate ion. K, for formic acid is 1.8 x 10- a What is the pH of a solution that has a formic acid concentration of 0.020 M and a sodium formate concentration of 0.055 M? pH = 4.18 Correct pK, = - log(1.8 x 10^4) = 3.74 We use the Henderson-Hasselbalch equation to calculate the pH of a buffer solution. (HCO3 pH=pk.vlog HCO, = 3.74 +log 0.055 020...
Question 1 (2 points) The relationship between a weak acid and its conjugate base at the 1/2 neutralization point is: the weak acid's concentration is greater than the conjugate base concentration. the weak acid's concentration is less than the conjugate base's concentration the weak acid's concentration is 1/2 the concentration of the conjugate base's concentration the weak acid and conjugate base have the same concentration. Question 2 (3 points) ✓ Saved The pka of acid is 4.8. Determine the acid's...
a b c d e Use the References to access important values if needed for this question. Consider the following equilibrium between benzoic acid (K, 6.3x10-5) and its conjugate base: + -OH H20 ? + -0 H30+ (1) Will lowering the pH shift the equilibrium to the right or to the left? to the left (2) Calculate the ratio of the concentration of bazoate ion to the concentration of benzoic acid at a pH of 1.61. ratio (conjugate base] /...
1. Identify the Brönsted acid and base in the following reaction, and identify the conjugate base and acid formed. HSO3-(aq) + CH3NH3(aq) ------ H2SO3(aq) + CH3NH2(aq) 2. Write the formulae for the conjugate acids of: 1. a) C2042: the oxalate ion. 2.b) C6H5NH2, aniline. 3.c)NH2OH, hydroxylamine. (Use above question as a guide for where to put the H.) 3. Calculate the molarity of OH' in solutions with the following concentrations of H30*: a) 0.020 mol LP b) 1.0 x 10-5...
Set+ 16/viewContent/869712ViewTou 59016 5. Identify the acid, base, conjugate acid, and conjugate base in the reactions below. Circle any amphoteric species. a) HOCl (aq) + H2O (l) → H3of (aq) + OCǐ b) NH3(aq)+H2NH4 (aq) OH (aq) 6. Consider the following reaction: 2 H20)+2 SO2() 2H2S(g)-3 O2(2) A reaction mixture initially contains 2.8 M H20O and 2.6 M SO2. Determine the equilibrium concentration of H2S if Kc for the reaction at this temperature is 1.3 10-6 2 13 Mew as...