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![Practice Problems
1. The concentration of H₂O* in a solution is found to be 1.75 x 108 M at 25°C. Find [OH]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fca7975f0-7bad-4799-a454-dce488604bae%2Fa096a612-29e2-474f-b9e9-90e2cf412d80%2Fbozn62q_processed.jpeg&w=3840&q=75)
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- The hydroxide ion concentration, [OH ], of an aqueous solution of 0.464 M morphine (a weak base with the formula C17H19 O3N), Kb = 7.4 x 10-7, is: [OH-] = M Submit Answer Retry Entire Group 9 more group attempts remainingConsider the following reaction scheme and complete the unknowns (A) - (E) on the following table iv. As NH, (A) + NH,C (F) (B) Br, H,O 1) EIMgBr 2) H,O NH, pH 4-5 HO OH H-H,0 -H,0 (Е) (D) (A) (B) (D) (C) (E) (F)2. Which of the following solutions has a pH = 15? (A) A solution cannot have a pH = 15. (B) 1.0 x 10-15 M NaOH (C) 10.0 M NaOH (D) 15 M NaOH (E) 1.0 M NaOH
- For each part of the below questions, choose one correct answer from the drop-down multiple choice menu box. For a solution containing 0.04 mol/L HNO3 a) [H A b) c) s Calculate [OH]. [OH']= Answer= s] Calculate pOH. POH= Answer=3. Detemine the pOH of each solution and classify it as acidic, basic, or neutral. (a) [OH]= 1.5 x 10-9 M (b) [OH¯]= 7.0 × 10-5 M (c) [OH¯] = 1.0 × 10-7 M (d) [OH¯] = 8.8 × 10-³ MHCI + Na2S -> H2S + NaCl is given. According to this reaction, if 5 moles of hydrochloric acid reacts with 5 moles of sodium sulphide, how many moles of hydrogensulphide (H2S) is formed? (ATTENTION: The reaction is not balanced, first balance the reaction!) 30 - O A) 2.5 O B) 1 O C) 1.25 O D) 3 O E) 5
- NO₂ 1) NaH THF 2) of 3) dil. H3O+If it took 27.20 mL of 0.150 M NaOH to titrate 17.45 mL of an HCI solution, what is the molarity of the HCl solution? (A) 0.390 M. 0.0962 M. 0.234M. 0.137 M. E) 4.28 M.6) Aqueous solutions (1-L, 0.1 M) are made of each of the following compounds. Which solution (a – d) would produce the most ions? a) Na2CO3 b) Al(NO3)3 c) CaBr2 d) MgSO4
- Answer the following by selecting all correct answers. (a) Dynamic equilibrium O is a condition where two opposing processes are occurring at the same rate. O can only occur in water. O is used to describe what happens when weak acids or weak bases are added to water. O is used to describe what happens when strong acids or strong bases are added to water. (b) What will happen if acetic acid (HC2H3O2) is added to water?3. The sour taste of lemons is attributed to citric acid. The dissociation of citric acid in water occurs in three steps. H&CO, 5 H*+ H;C,O, Kal= 7.4x104 H-CO, 5 H* + H,C,O,2- K= 1.7x10-5 H,C.O2- H* + H;C,O, K= 4.0x10-7 HO HO OH OH %3D Draw the ladder diagram for citric acid. nnt terthook section: 7.10||| O crosoft O 3 Sodium hydrogen carbonate (NaHCO3), also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCI), which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO3 neutralizes excess HCl through this reaction: HCl(aq) + NaHCO3(aq) NaCl(aq) + H₂O(l) + CO₂(g) The CO₂ gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a man suffering from indigestion can be considered to be 200. mL of a 0.072 M HCl solution. What mass of NaHCO3 would he need to ingest to neutralize this much HCl ? Be sure your answer has the correct number of significant digits. W CHEMICAL REACTIONS Solving for a reactant in solution Microsoft Microsoft 6.52.210... 08 g Explanation 10 Check 280 x10 X 2 NOV 13 Ś ||| - K Jay SETMANES tv ♫ MacBook Pro DZA . E © 2022 McGraw Hill…