/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 11 Which compound or compounds in e... [FREE SOLUTION] | 91影视

91影视

Which compound or compounds in each of the following groups is (are) expected to be soluble in water? (a) \(\mathrm{CuO}, \mathrm{CuCl}_{2}, \mathrm{FeCO}_{3}\) (b) \(\mathrm{AgI}, \mathrm{Ag}_{3} \mathrm{PO}_{4}, \mathrm{AgNO}_{3}\) (c) \(\mathrm{K}_{2} \mathrm{CO}_{3}, \mathrm{KI}, \mathrm{KMnO}_{4}\)

Short Answer

Expert verified
(a) CuCl鈧 is soluble; (b) AgNO鈧 is soluble; (c) K鈧侰O鈧, KI, KMnO鈧 are soluble.

Step by step solution

01

Recalling Solubility Rules

To determine the solubility of compounds, we first need to recall common solubility rules. For instance, most nitrates (NO鈧冣伝), acetates (CH鈧僀OO鈦), and perchlorates (ClO鈧勨伝) are soluble. Most salts of alkali metals (Li鈦, Na鈦, K鈦, etc.) and ammonium (NH鈧勨伜) are also soluble. Chlorides (Cl鈦), bromides (Br鈦), and iodides (I鈦) are generally soluble, except when paired with Ag鈦, Pb虏鈦, and Hg鈧偮测伜. Carbonates (CO鈧兟测伝) are usually insoluble except those of alkali metals and NH鈧勨伜.
02

Analyzing each compound group (a)

In group (a), - **CuO (copper(II) oxide)**: Most metal oxides are insoluble in water. CuO is no exception and is insoluble. - **CuCl鈧 (copper(II) chloride)**: Chloride salts are generally soluble in water. CuCl鈧 is soluble. - **FeCO鈧 (iron(II) carbonate)**: Carbonates, except those of alkali metals and ammonium, are typically insoluble. FeCO鈧 is insoluble.
03

Analyzing each compound group (b)

In group (b), - **AgI (silver iodide)**: Although iodides are usually soluble, silver iodide is an exception and is insoluble. - **Ag鈧働O鈧 (silver phosphate)**: Phosphates are typically insoluble except those of alkali metals and ammonium. Ag鈧働O鈧 is insoluble. - **AgNO鈧 (silver nitrate)**: Nitrate salts are generally soluble. AgNO鈧 is soluble.
04

Analyzing each compound group (c)

In group (c), - **K鈧侰O鈧 (potassium carbonate)**: Carbonates are mostly insoluble, but those of alkali metals like potassium are soluble. K鈧侰O鈧 is soluble. - **KI (potassium iodide)**: As an alkali metal iodide, KI is soluble. - **KMnO鈧 (potassium permanganate)**: Permanganates of alkali metals are soluble. KMnO鈧 is soluble.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Water Solubility
Water solubility involves understanding how certain compounds dissolve in water. This process depends on forces like ion-dipole interactions and the nature of the compound. Soluble compounds dissociate in water releasing their ions, while insoluble compounds do not mix well.
Most compounds containing nitrates ( O鈧冣伝 ), acetates ( CH鈧僀OO鈦 ), and perchlorates ( ClO鈧勨伝 ) dissolve easily in water. This is because they form strong ion-dipole interactions with water. For salts of alkali metals (like potassium and sodium), dissolution is also common due to their stable solvation with water molecules.
  • Water molecules can surround ions, separating them and allowing them to move freely. This results in a solution.
  • Water as a polar solvent interacts well with ionic compounds, meaning ion-dipole interactions are crucial in water solubility.
Recognizing which compounds will or won't dissolve requires memorization and understanding of these solubility rules.
Insoluble Compounds
Insoluble compounds generally do not dissolve in water, often remaining as solids. Common types include many oxides, carbonates, and phosphates. For instance, metal oxides and carbonates, except for those of alkali metals, tend not to dissolve.
This insolubility occurs because the forces holding the compound together are stronger than those created when these compounds interact with water molecules.
Certain exceptions exist based on specific rules; for example, while most iodides dissolve, silver iodide ( AgI ) does not.
  • These compounds might form suspensions rather than true solutions.
  • Understanding these exceptions helps predict behavior in various chemical reactions and extraction processes.
Learning about these rules is essential for predicting how substances behave in aqueous environments.
Soluble Compounds
Soluble compounds readily dissolve in water. Their ability to dissociate makes them play crucial roles in biological and chemical processes. Compounds like K鈧侰O鈧 (potassium carbonate) and KI (potassium iodide) are good examples of soluble compounds.
As they dissolve, these compounds release ions, allowing for conductive solutions essential in many applications:
  • Soluble substances facilitate biological processes by providing needed ions.
  • In chemistry, they aid in reactions and help in the synthesis of products.
Solubility is often linked with compounds like nitrates and acetates, which naturally dissolve due to their ion-dipole interactions with water. Recognizing these patterns allows chemists to predict how mixtures behave in solutions, optimizing the design and use of materials across industries.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Decide whether each of the following is water-soluble. If soluble, tell what ions are produced when the compound dissolves in water. (a) \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) (c) NiS (b) \(\mathrm{CuSO}_{4}\) (d) \(\mathrm{BaBr}_{2}\)

For each reaction, write an overall, balanced equation and the net ionic equation. (a) the reaction of aqueous lead(II) nitrate and aqueous potassium hydroxide (b) the reaction of aqueous copper(II) nitrate and aqueous sodium carbonate

Balance the following equations, and then classify each as a precipitation, acid-base, or gas-forming reaction. Show states for the products (s, \(\ell, \mathrm{g},\) aq), and then balance the completed equation. Write the net ionic equation. (a) \(\mathrm{Fe}(\mathrm{OH})_{3}(\mathrm{s})+\mathrm{HNO}_{3}(\mathrm{aq}) \rightarrow \mathrm{Fe}\left(\mathrm{NO}_{3}\right)_{3}+\mathrm{H}_{2} \mathrm{O}\) (b) \(\mathrm{FeCO}_{3}(\mathrm{s})+\mathrm{HNO}_{3}(\mathrm{aq}) \rightarrow \mathrm{Fe}\left(\mathrm{NO}_{3}\right)_{2}+\mathrm{CO}_{2}+\mathrm{H}_{2} \mathrm{O}\)

Write a balanced equation for the reaction of barium hydroxide with nitric acid.

Balance the following equations, and name each reactant and product: (a) \(\mathrm{Fe}_{2} \mathrm{O}_{3}(\mathrm{s})+\mathrm{Mg}(\mathrm{s}) \rightarrow \mathrm{MgO}(\mathrm{s})+\mathrm{Fe}(\mathrm{s})\) (b) \(\mathrm{AlCl}_{3}(\mathrm{s})+\mathrm{NaOH}(\mathrm{aq}) \rightarrow \mathrm{Al}(\mathrm{OH})_{3}(\mathrm{s})+\mathrm{NaCl}(\mathrm{aq})\) (c) \(\mathrm{NaNO}_{3}(\mathrm{s})+\mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{aq}) \rightarrow \mathrm{Na}_{2} \mathrm{SO}_{4}(\mathrm{s})+\mathrm{HNO}_{3}(\mathrm{aq})\) (d) \(\mathrm{NiCO}_{3}(\mathrm{s})+\mathrm{HNO}_{3}(\mathrm{aq}) \rightarrow \mathrm{Ni}\left(\mathrm{NO}_{3}\right)_{2}(\mathrm{aq})+\mathrm{CO}_{2}(\mathrm{g})+\mathrm{H}_{2} \mathrm{O}(\ell)\)

See all solutions

Recommended explanations on Chemistry Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.