H,0 + HCN = H,0* + "CN a. Identify each species as a Brønsted acid or base. Select the correct assignments. H,0 is the base and HCN is the acid. V H,0* is the acid and "CN is the base. O H,0 is the acid and HCN is the base. O H,0* is the base and "CN is the acid. b. Which direction does equilibrium lie? Equilibrium lies to the right. Equilibrium lies to the left. Use the data to estimate the Keg of the forward reaction. K, pK. H,O* 50 -1.7 HCN 6.3 х 10-10 9.2

[H+] = .0001 [H+] = 0.0030 [ОН-] — 8.6 е -8 РОН 3 4.9 pH = 7.3 %3D At 37 degrees C, which of these solutions can we say is nearly neutral?

0/1 point Which one of the following conjugate acid-base pairs is correct? Acid Base HCO3 NO3 a. b. NO3 HNO3 HCO3 co, (aq) C. NO3 co,2- d. HCO3 HNO3 e. d. 0/1 point

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

Potassium Hydroxide is classified as a base because KOH contains

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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

IDENTIFY THE CONJUGATE ACID-BASE PAIRS. Show complete solution.

Rank the following solutions in order of decreasing [H3O+]. Rank solutions from largest to smallest [H3O+]. To rank items as equivalent, overlap them. Largest 0.1 mol L-¹ CH₂CH₂OH |0.1 mol L | HCIO. 0.1 mol L1 CH₂COOH The correct ranking cannot be determined. 0.1 mol L-1 HCI Reset Help - Smallest

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