Predicting the qualitative acid-base properties of salts Consider the following data on some weak acids and weak bases: base acid K а K₁ name formula name formula hydrofluoric acid HF -4 6.8 × 10 hydroxylamine HONH2 1.1 × 10¯ 8 hydrocyanic acid HCN 10 4.9 × 10 methylamine CH3NH2 | 4.4 × 10¯ 4 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 M KCN 0.1 M CH3NH3Br 0.1 M HONH3Cl choose one v choose one choose one v 0.1 M NaBr choose one v 6

Predicting the qualitative acid-base properties of salts Consider the following data on some weak acids and weak bases: base acid K а K₁ name formula name formula hydrofluoric acid HF -4 6.8 × 10 hydroxylamine HONH2 1.1 × 10¯ 8 hydrocyanic acid HCN 10 4.9 × 10 methylamine CH3NH2 | 4.4 × 10¯ 4 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 M KCN 0.1 M CH3NH3Br 0.1 M HONH3Cl choose one v choose one choose one v 0.1 M NaBr choose one v 6

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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Which one is the strongest acid and why?
For many weak acid or weak base calculations, you can use a simplifying assumption to avoid solving quadratic equations. Ka = [HA] — х [НА] Classify these situations by whether the assumption is valid or the quadratic formula is required. Assumption is valid Quadratic formula is required Answer Bank [HA] = 0.001 M [HA] = 0.01 M Ka = 1 x 10¬4 [HA] = 0.1 M [HA] = 1 M [HA] = 0.01 M Ka = 1 × 10–5 Ką = 1 × 10-3 Ka = 1 × 10–3 Ka = 1 × 10-5
The chemical formulae of some acids are listed in the first column of the table below, and in the second column it says whether each acid is strong or weak. Complete the table. List the chemical formula of each species present at concentrations greater than about 10-6 mol/L when about a tenth of a mole of the acid is dissolved in a liter of water. acid H₂SO3 HIO3 HCIO2 H₂S strong or weak? weak strong weak weak species present at 10-6 mol/L or greater when dissolved in water ☐ 0 0 0 X Start over 0,0,... Ś
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The chemical formulae of some acids are listed in the first column of the table below, and in the second column it says whether each acid is strong or weak. Complete the table. List the chemical formula of each species present at concentrations greater than about 10-6 mol/L when about a tenth of a mole of the acid is dissolved in a liter of water. acid HNO₂ H₂SO3 HBrO3 H Br strong or weak? weak weak strong strong species present at 10-6 mol/L or greater when dissolved in water 10 0 0 0 Ś
The chemical formulae of some acids are listed in the first column of the table below, and in the second column it says whether each acid is strong or weak. Complete the table. List the chemical formula of each species present at concentrations greater than about 10-6 mol/L when about a tenth of a mole of the acid is dissolved in a liter of water. acid HCIO3 H Br H₂SO3 H₂S strong or weak? strong strong weak weak species present at 10-6 mol/L or greater when dissolved in water X 0.0.
Ka for benzoic acid, C6 H; COOH, is 6.30 × 10-5. Ka for phenol (a weak acid), C6H5 OH, is 1.00 × 10¬10. Ka for formic acid, HCOOH, is 1.80 x 10-4. What is the formula for the strongest acid? Drag and drop your selection from the following list to complete the answer: C6 H; OH C,H; COOH HCOOH
The chemical formulae of some acids are listed in the first column of the table below, and in the second column it says whether each acid is strong or weak. Complete the table. List the chemical formula of each species present at concentrations greater than about 10-6 mol/L when about a tenth of a mole of the acid is dissolved in a liter of water. acid H₂SO3 HCIO H₂S HNO3 strong or weak? weak weak weak strong species present at 10-6 mol/L or greater when dissolved in water 0 0 0 × 0,0,... Ś ? 0!!! olo 18 Ar
Each value represents a different aqueous solution at 25 °C. Classify each solution as acidic, basic, or neutral. Acidic Basic Neutral pH = 3.64 pH = 13.41 [OH-] = 9.3 x 10-8 pOH = 4.73 pOH = 12.12 [H+]=1.0 x 10-7 [H+] = 2.9 × 10-10 [H+]=4.0 x 10-4 [OH-] = 1.4 x 10-3 pOH = 7.00 Answer Bank
Calculate the concentration of all species in a 0.240 MC6H5NH3Cl solution. Enter your answers numerically separated by commas. Express your answer using two significant figures. [C6H5NH+3], [Cl−], [C6H5NH2],[H3O+], [OH−] =
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