3. Carbon dioxide dissolves in water and forms carbonic acid (H,CO,), as shown in the balanced chemical equation:CO2 (aq) + H,0 (1) -> H,CO; (aq)The aqueous carbonic acid formed above is in a solution containing calcium hydroxide in water.H,CO, (aq) + Ca(OH)2 (aq) -> CaCO, (s) + 2H,0 (1)a) If the student started with 85 grams of calcium hydroxide dissolved in 350 ml of water how many grams of calciumcarbonate could be theoretically formed? b) What is the molarity of the starting calcium hydroxide solution?

The mass of 1 mole of molecules of a substance is known as its molar mass Number of moles of a…

3. Carbon dioxide dissolves in water and forms carbonic acid (H,CO,), as shown in the balanced chemical equation: CO2 (aq) + H20 (1) -> H¿CO3 (aq) The aqueous carbonic acid formed above is in a solution containing calcium hydroxide in water. H,CO, (aq) + Ca(OH)2 (aq) -> CaCO, (s) + 2H2O (1) a) If the student started with 85 grams of calcium hydroxide dissolved in 350 mL of water how many grams of calcium carbonate could be theoretically formed? b) What is the molarity of the starting calcium hydroxide solution?

3. Carbon dioxide dissolves in water and forms carbonic acid (H,CO,), as shown in the balanced chemical equation: CO2 (aq) + H20 (1) -> H¿CO3 (aq) The aqueous carbonic acid formed above is in a solution containing calcium hydroxide in water. H,CO, (aq) + Ca(OH)2 (aq) -> CaCO, (s) + 2H2O (1) a) If the student started with 85 grams of calcium hydroxide dissolved in 350 mL of water how many grams of calcium carbonate could be theoretically formed? b) What is the molarity of the starting calcium hydroxide solution?

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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A) A student completely dissolves 5.16 mol of Ca(OH)2 in water. i) Which equation is the dissociation equation for Ca(OH), in water? (Give the letter choice)| A. Ca(OH) 2 (s) + H 20 ---> CaO(aq) + O 2 (g) + 2 H 2 (g) С. Са(ОН) 2 (s) --> Са 2+ (aq) + 20 2- (aq) + 2H * (aq) В. Cа(ОН) 2 (s) ---> Са 2" (аq) + 2 ОН (аq) D. Ca(ОН) 2 (s) --> CаН 2 (aq) + O 2 (g) ii) How many total moles of ions are released from the 5.16 mol of Ca(OH)2 ? mol of ions B) A sample of FeCl3 is completely dissolved in water. i) Which is the dissociation equation for FeCl3 in water? (Give the letter choice) A. FeCl 3 (s) + H 20 ---> FeCl 2 (aq) + HCI(aq) + OH (aq) C. FeCl (s) ---> Fe 3+ (aд) + Cl 2 (aq) + Cl (aq) 3 В. FeCl 3 (s) + Н20 ---> FEHCI (aq) + ОН " (aq) D. FeCl 3 (s) ---> Fe 3+ (ад) + 3 CI (аq) ii) How many total moles of ions are released if 5.71 x1019 formula units of FeCl3 were completely dissolved? (NOTE: Write answer in sci. notation using "E" or "e" to replace "x 10" & do NOT leave any space between…
What is the net ionic equation for the following molecular equation? BaCl,(aq) + K,SO.(aq) → BaSO,(s)+ 2KCI(aq) O Ba2 (aq) + SO,2-(aq) → BaSO,(s) O Ba (aq) + 2Cl-(aq) + 2K'(aq) + SO,2-(aq) → BaSO,(s) + 2KCI(aq) O Ba2 (aq) + 2CI-(aq) + 2K'(aq) + S0,2-(aq) → Ba²'(aq) + 2CI-(aq) + 2K'(aq) + SO,2–-(aq) O 2C1-(aq) + 2K'(aq) → 2KCI(s)
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3. Give the net ionic equation for the reaction (if any). that occurs when aqueous solutions of K2S and Fe(NO;)2 are mixed. A) K*(aq) + NO;(aq) – KNO;(s) B) No reaction occurs. C) Fe"(aq) + S³(aq) + 2 K^(aq) + 2 NO;(aq) → FeS(s) + 2 K“(aq) +2 NO;(aq) D) Fe"(aq) + S²(aq) + 2 K*(aq) + 2 NO;(aq) → Fe²"(aq) + s²(aq) + 2 KNO3(s) E) Fe2(aq) + S²-(aq) FeS(s)
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In a terrible accident, a solution consisting of 2.37 kg of nitric acid, HNO3, was spilled on the lab floor. Very quickly, you decide to throw 2.00 kg of sodium carbonate, Na2CO3, on the spilled acid. You then run out of the building due to the significant quantities of carbon dioxide that would form due to the reaction. As you stand outside, you wonder, "Did I add enough sodium carbonate to neutralize the acid?". a) Did you add enough sodium carbonate to neutralize the acid? Yes Ο No b) In the event that you did not add enough sodium carbonate, how much extra would be needed to completely neutralize the acid? If you have added enough, please enter a value of 0 (zero). Needed 0 c) In the event that you did add enough sodium carbonate, how much extra did you add? If you didn't add any extra, please enter a value of 0 (zero). Excess 09 g g
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15. An aqueous solution of hydrogen bromide is called hydrobromic acid. Identify the chemical equation for the reaction of hydrobromic acid with an aqueous solution of sodium hydroxide. A) HBr (aq) + N2OH (aq) Na* (aq) Вг (аq) + H2O (1) B) 2 HBr (aq) + Na (OH)2 (aq) Na?* (aq) 2 Br (aq) + 2 H2O (1) C) 2 HBr (aq) + Sn(OH)2 (aq) Sn2* (aq) 2 Bг (аq) + 2 H2O (1) + D) 2 HBr (aq) Na(OH)2 (aq) HNABR2 (aq) + 2 H2O (1) 16. Which of the following structures represents the conjugate acid of HPO:2- ? A) H2PO4 в) НАРО< C) H4PO4* D) PO 17. The solution with a pH value of 6.2 is A) ionic B) neutral C) basic D) acidic
Sodium hydrogen carbonate (NaHCO,), 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 NaHCO, neutralizes excess HCl through this reaction: HCl(aq) + NaHCO3(aq) → NaCl(aq) + H2O(1) + CO2(g) The CO, gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a woman suffering from indigestion can be considered to be 200. mL of a 0.097 M HCl solution. What mass of NaHCO, would she need to ingest to neutralize this much HCl ? Round your answer to 2 significant digits.