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Use the activity series to rank these reactions in order from slowest to fastest, justfiy your prediction.
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- Given the balanced reaction 4A = B + 3C, what is the ΔG of the reaction if: ΔHf (J/mol) ΔS (kJ/mol-K) A -3.98 x 105 1.4 x 10-1 B -4.37 x 105 8.3 x 10-2 C -4.33 x 105 1.5 x 10-1Jj.192.When HCl(aq) is added to calclum carbonate solid, carbon dioxide gas, liquid water and aqueous calcium chloride form: Caco,(s) + 2HCI(aq) - CO,lg) • CaCl, faq) + H,00) This reaction is used by geologists to confirm the presence of limestone (calcium carbonate) in minerals. In this experiment you are trying to determine the effect of concentration of HCI(aq) on the production of carbon dioxide. a. Based upon the information above, come up with a question to answer. (C:1) You can use the following equipment to answer this question: calcium carbonate chips, 1.90 molL HClaq). pH meter (measures hydrogen ion concentration), beaker, timer, apparatus to measure gas produced b. Based upon the equipment provided above, design a procedure to answer your question. Ensure you provide numbered steps. (1:3, C:2) c. Hypothesize an answer to your question. (I:1) Give reasons for your hypothesis. Ensure you are very specific. (A3) From your experiment, you collect the following data: Reactant…
- When sodium acetate, CH3COONa(s), is added to CH3COOH (aq), why does the pH of the solution increase?If I add the following will the system shifts forward, backward or remains the same? Ag2CrO4 (s) ⇌ 2 Ag+ (aq) + CrO42- (aq) d) Add Acid (e) Add ammoniaThe pH of an aqueous solution of 0.1130 M hydrosulfuric acid, H2S (aq), is ____ .
- The pH of an aqueous solution of 1.08×10-2 M carbonic acid, H2CO3 (aq), isTo remove the tarnish (Ag2S) on a silver spoon the following steps are carried out. the spoon is placed in a large pan filled with water so the spoon was totally immersed. A few tablespoonfuls of baking soda (sodium bicarbonate), which readily dissolves. Is added. Some aluminum foil is placed at the bottom of the pan in contact with the spoon and then heated the solution to about 80° After a few minutes, the spoon is removed and rinsed with cold water. The tarnish is gone and the spoon regains its original shiny appearance. Describe with equations the electrochemical basis for the procedure. Adding NaCl instead of NaHCO3 would also work because both compounds arestrong electrolytes. What is the added advantage of using NaHCO3? (Hint: Consider the pH of the solution.) What is the purpose of heating the solution? Some commercial tarnish removers containing a fluid (or paste) that is a dilute HCl solution. Rubbing the spoon with the fluid will also remove the tarnish. Name two…What is the equilibrium constant (Keq) for the system?