Chapter 4: Problem 4
What is the difference between the following symbols in chemical equations: \(\longrightarrow\) and \(\rightleftharpoons ?\)
Chapter 4: Problem 4
What is the difference between the following symbols in chemical equations: \(\longrightarrow\) and \(\rightleftharpoons ?\)
All the tools & learning materials you need for study success - in one app.
Get started for freeCalculate the molarity of each of the following solutions: (a) \(29.0 \mathrm{~g}\) of ethanol \(\left(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\right)\) in \(545 \mathrm{~mL}\) of solution, (b) \(15.4 \mathrm{~g}\) of sucrose \(\left(\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}\right)\) in \(74.0 \mathrm{~mL}\) of solution, (c) \(9.00 \mathrm{~g}\) of sodium chloride \((\mathrm{NaCl})\) in \(86.4 \mathrm{~mL}\) of solution.
Predict and explain which of the following systems are electrically conducting: (a) solid \(\mathrm{NaCl}\), (b) molten \(\mathrm{NaCl}\), (c) an aqueous solution of \(\mathrm{NaCl}\)
This "cycle of copper" experiment is performed in some general chemistry laboratories. The series of reactions starts with copper and ends with metallic copper. The steps are: (1) A piece of copper wire of known mass is allowed to react with concentrated nitric acid [the products are copper(II) nitrate, nitrogen dioxide, and water]. (2) The copper(II) nitrate is treated with a sodium hydroxide solution to form copper(II) hydroxide precipitate. (3) On heating, copper(II) hydroxide decomposes to yield copper(II) oxide. (4) The copper(II) oxide is reacted with concentrated sulfuric acid to yield copper(II) sulfate. (5) Copper(II) sulfate is treated with an excess of zinc metal to form metallic copper. (6) The remaining zinc metal is removed by treatment with hydrochloric acid, and metallic copper is filtered, dried, and weighed. (a) Write a balanced equation for each step and classify the reactions. (b) Assuming that a student started with \(65.6 \mathrm{~g}\) of copper, calculate the theoretical yield at each step. (c) Considering the nature of the steps, comment on why it is possible to recover most of the copper used at the start.
Explain why a solution of \(\mathrm{HCl}\) in benzene does not conduct electricity but in water it does.
Lithium fluoride (LiF) is a strong electrolyte. What species are present in \(\operatorname{LiF}(a q) ?\)
What do you think about this solution?
We value your feedback to improve our textbook solutions.