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- 12.67 Hydrofluoric acid is a weak acid used in the building industry to etch patterns into glass for elegant windows. Because it dissolves glass, it is the only inorganic acid that must be stored in plastic containers. A 0.1 M solution of HF has a pH of 2.1. Calculate [Hj0"| in this solution.TRUE OR FALSE. Write T on the space provided if the statement is true. Write F if the statement is false. _6. Catalysts only affect the rate of a reaction. -7. The rate of the forward reaction in a reversible reaction is sometimes greater than the rate of the reverse reaction. 8. Keq of a gaseous solution can be expressed in terms of Kc. 9. If an inert gas is added to a system at equilibrium, the reaction will shift to the direction of fewer molecules. _10. Pressure and volume affect a gaseous system in equilibrium in the same manner.reaction? a. Ph Ph Ph + CH,=CHCHO Ph Ph Ph N(CH3)3 heat C. Ph. Ph CH3 Ph CHO Ph
- ||| 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…2- Calculate the AH of NaCl when it is heated from 0.0°C to 100.0°C.HCI + 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
- Analyze both reactions and indicate whether the equilibrium tends to favor the reactants or the products. Reaction A: H30* + NH,* NH2 HO, Reaction B: + "OH + ОН Select the true statement(s). Reactions A and B tend to favor the products. Reactions A and B tend to favor the reactants. Reaction A tends to favor the reactants, Reaction B favors the products. Reaction A tends to favor the products, Reaction B favors the reactants.For the reaction: 2HBr → H2 + Br2 ΔH = -17.4 kcal/mol. And Keq = 32 X 10 20 Is the reaction exothermic or endothermic? Are products or reactants favored? Using Le Chatelier’s Principle, what happens to the equilibrium if the concentration of Br2 is increased? Using Le Chatelier’s Principle, what happens to the equilibrium if the concentration of H2 is decreased?What is the most suitable solvent for perchloric acid? a. HCl b. CH3COOH c. Glacial Acetic Acid d. H2SO4 e. Dioxane
- 50.0 mL of 0.100 M hydrochloric acid moles of H+ is equal to 0.005 100.0 mL of 0.200 M nitric acid moles of H+ is equal to 0.02 500.0 mL of 0.0100 M barium hydroxide moles of OH- is equal to 0.01 200.0 mL of 0.100 M rubidium hydroxide moles of OH- is equal to 0.02 When it asks you calculated the four moles of the solutions, this is what they are referring to.Would the reaction between NAOH and NH4OH be endothermic or exothermic ?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
