C6H5COOH + H2O <-------------> C6H5COO- + H3O+
part C) initially [C6H5COOH] = 0.054 M
from part A and B it is clear that
at equilibrium [H3O+] = [C6H5COO-] = 0.0018 M
amount of C6H5COoH dissociate = amount of H3O+ formed
means concentration of C6H5COOH dissocated = 0.0018 M
at equilibrium [C6H5COOH] = 0.054 - 0.0018 = 0.0522 M
answer = [C]HCOOH = 0.0522 M = 5.2 x 10-2 M
I need help on C Review Constants 1 Periodic Table The acid-dissociation constant for benzoic acid...
The acid-dissociation constant for benzoic acid (C6H5COOH) is 6.3×10−5. Calculate the equilibrium concentration of H3O+ in the solution if the initial concentration of C6H5COOH is 0.065 M . Express your answer using two significant figures. TemplatesSymbols undoredoresetkeyboard shortcutshelp [H3O+] [ H 3 O + ] = M SubmitPrevious AnswersRequest Answer Incorrect; Try Again; 5 attempts remaining Part B Calculate the equilibrium concentration of C6H5COO− in the solution if the initial concentration of C6H5COOH is 0.065 M . Express your answer...
What mass of benzoic acid, C6H5COOH, would you dissolve in 300.0 mL of water to produce a solution with a pH = 2.75? C6H5COOH+H2O⇌H3O++C6H5COO−Ka=6.3×10−5 Express your answer using two significant figures.
Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid dissociates in water: C6H5COOH⇌C6H5COO−+H+ The pKa of this reaction is 4.2. In a 0.76 M solution of benzoic acid, what percentage of the molecules are ionized? Express the percentage numerically using two significant figures.
Answer Part A-C please, thanks. II Review | Constants | Periodic Table A 0.32 mol amount of NH3 is dissolved in 0.47 L of a 0.38 M silver nitrate solution. Kf = 1.7 x 107 Part A Calculate the equilibrium concentration of Ag+ in the solution. Express your answer to three significant figures and include the appropriate ? OCH HA Value O Units [Ag*)= Submit Request Answer Part B Calculate the equilibrium concentration of NH3 in the solution. Express your...
Review Constants 1 Periodic Table The concentration of OH in a sample of seawater is 1.2x10-6 M Y Part A Calculate the concentration of H3O+ ions. Express your answer to two significant figures and include the appropriate units. HA ? H0+ - Value Units Submit Request Answer Review Constants ! Periodic Table Water Ionizes by the equation Part A H2O(1) H+ (aq) + OH(aq) The extent of the reaction is small in pure water and dilute aqueous solutions. This reaction...
Review I Constants 1 Periodic Table Consider the following curve (Figure 1) for the titration of a weak base with a strong acid and answer each of the following questions. V = 12 mL Submit Previous Answers Correct Part E Figure At what volume of added acid is the pH calculated by working an equilibrium problem based on the concentration and k of the conjugate acid? Express your answer using two significant figures 1 of 1 > 10 AED -...
Need help with part b and c roblem 14.45 Constants I Periodic Table Part A A 210 g block hangs from a spring with spring constant 6.0 N/m. Att0 s the block is 15 cm below the equilibrium point and moving upward with a speed of 134 cm/s What is the block's oscillation frequency? Express your answer to two significant figures and include the appropriate units. f 0.85 Hz Previous Answers Correct Part B What is the block's distance from...
Ka= 1.9*10^-5 i Review | Constants | Periodic Table Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations (Ka is given in Appendix D in the textbook). Part A 0.424 M. Express your answer using two significant figures. IVO A o 2 ? ΑΣΦ Submit Request Answer Part B 0.100 M Express your answer using two significant figures. od 0 0 ? ΑΣΦ Part C 4.18x10-2 M. Express your answer using two significant...
Review Constants Periodic Table The reaction 2NO, - constant k 0.63M 2NO+O, has the rate Previous Answers Correct - Part 3 If the initial concentration of NO, is 0.140 M how would you determine how long it would take for the concentration to decrease to 200x10-2 M2 Express your answer using two significant figures. 0 AEDRO? Submit Reute
Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid ionizes in water: C6H5COOH⇌C6H5COO−+H+ The pKa of this reaction is 4.2. In a 0.62 M solution of benzoic acid, what percentage of the molecules are ionized? Express your answer to two significant figures and include the appropriate units.