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Chapter 23: Problem 76

In your own words, define the following terms: (a) domain; (b) flotation; (c) leaching; (d) amalgam.

Short Answer

Expert verified
Domain is the set where a function is defined or a sphere of knowledge in computer science. Flotation is a chemistry process used in separation of substances. Leaching is the process of extracting substances from a solid by dissolving them in a liquid. Amalgam is a blend or mixture, often a type of dental filling.

Step by step solution

01

Defining Domain

In context of mathematics, the domain of a function is the set of input or argument values for which the function is defined. In computer science, it refers to a specific sphere of activity or knowledge.
02

Defining Flotation

Flotation is a process used in chemistry and mining to separate substances. In this process, particles are separated based on their ability to attach to air bubbles. Typically, it's used for mineral recovery.
03

Defining Leaching

Leaching refers to the process of extracting substances from a solid by dissolving them in a liquid, naturally or through an industrial process. In the most common usage, it refers to the removal of a substance from a solid using a liquid solvent.
04

Defining Amalgam

Amalgam is usually used in reference to a blend or mixture. In dentistry, it's a type of filling made from a mixture of metals including mercury, silver, tin, and sometimes copper. In general use, it can refer to any blend or mixture.

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Most popular questions from this chapter

What products are obtained when \(\mathrm{Mg}^{2+}(\mathrm{aq})\) and \(\mathrm{Cr}^{3+}(\mathrm{aq})\) are each treated with a limited amount of NaOH(aq)? With an excess of \(\mathrm{NaOH}(\) aq)? Why are the results different in these two cases?

Explain why gold dissolves in aqua regia but not in \(\mathrm{HNO}_{3}(\mathrm{aq})\).

You are given these three reducing agents: \(\mathrm{Zn}(\mathrm{s})\) \(\mathrm{Sn}^{2+}(\mathrm{aq}),\) and \(\mathrm{I}^{-}(\mathrm{aq}) .\) Use data from Appendix \(\mathrm{D}\) to determine which of them can, under standard-state conditions in acidic solution, reduce (a) \(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}(\mathrm{aq})\) to \(\mathrm{Cr}^{3+}(\mathrm{aq})\) (b) \(\mathrm{Cr}^{3+}(\text { aq })\) to \(\mathrm{Cr}^{2+}(\mathrm{aq})\) (c) \(\mathrm{SO}_{4}^{2-}(\text { aq })\) to \(\mathrm{SO}_{2}(\mathrm{g})\)

When a soluble lead compound is added to a solution containing primarily orange dichromate ion, yellow lead chromate precipitates. Describe the equilibria involved.

A 0.589 g sample of pyrolusite ore (impure \(\mathrm{MnO}_{2}\) ) is treated with \(1.651 \mathrm{g}\) of oxalic acid \(\left(\mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4} \cdot 2 \mathrm{H}_{2} \mathrm{O}\right)\) in an acidic medium (reaction 1). Following this, the excess oxalic acid is titrated with \(30.06 \mathrm{mL}\) of \(0.1000 \mathrm{M}\) \(\mathrm{KMnO}_{4}\) (reaction 2). What is the mass percent of \(\mathrm{MnO}_{2}\) in the pyrolusite? The following equations are neither complete nor balanced. (1) \(\quad \mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4}(\mathrm{aq})+\mathrm{MnO}_{2}(\mathrm{s}) \longrightarrow \mathrm{Mn}^{2+}(\mathrm{aq})+\mathrm{CO}_{2}(\mathrm{g})\) (2) \(\mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4}(\mathrm{aq})+\mathrm{MnO}_{4}^{-}(\mathrm{aq}) \longrightarrow \mathrm{Mn}^{2+}(\mathrm{aq})+\mathrm{CO}_{2}(\mathrm{g})\)
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