This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Alright 千 — let's do this. 1. Calculate the concentration of hydrogen ion in orange juice with pOH of 11.40. Step 1: Calculate the pH using the relationship between pH and pOH. pH + pOH = 14 pH = 14 - pOH pH = 14 - 11.40 pH = 2.60 Step 2: Calculate the hydrogen ion concentration ([H^+]) from the pH. pH = -_10[H^+] [H^+] = 10^-pH [H^+] = 10^-2.60 [H^+] = 2.51 × 10^-3 mol/dm^3 The concentration of hydrogen ion is 2.51 × 10^-3 mol/dm^3. 2. Find the hydrogen ion and hydroxide ion concentration in a 0.02 M solution of H_2SO_4. Step 1: Write the dissociation equation for sulfuric acid (H_2SO_4). Sulfuric acid is a strong acid and dissociates completely. H_2SO_4(aq) 2H^+(aq) + SO_4^2-(aq) Step 2: Determine the hydrogen ion concentration ([H^+]). Since each mole of H_2SO_4 produces 2 moles of H^+ ions: [H^+] = 2 × [H_2SO_4] [H^+] = 2 × 0.02 M [H^+] = 0.04 M Step 3: Calculate the hydroxide ion concentration ([OH^-]) using the ion product of water (K_w). At 25^, K_w = [H^+][OH^-] = 1.0 × 10^-14 M^2. [OH^-] = (K_w)/([H)^+] [OH^-] = 1.0 × 10^-14 M^20.04 M [OH^-] = 2.5 × 10^-13 M The hydrogen ion concentration is 0.04 M, and the hydroxide ion concentration is 2.5 × 10^-13 M. 3. Find the pH in which the hydrogen ion concentration is 6.38 × 10^-6 mol/dm^3. Step 1: Use the definition of pH. pH = -_10[H^+] Step 2: Substitute the given hydrogen ion concentration and calculate the pH. pH = -_10(6.38 × 10^-6) pH = -(-5.195) pH = 5.195 The pH is 5.195. Send me the next one 📸