Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 2: Problem 66

Name the following ionic compounds: (a) \(\mathrm{KCN},\) (b) \(\mathrm{NaBrO}_{2}\), (c) \(\mathrm{Sr}(\mathrm{OH})_{2}\), (d) CoS, (e) \(\mathrm{Fe}_{2}\left(\mathrm{CO}_{3}\right)_{3}\) (f) \(\mathrm{Cr}\left(\mathrm{NO}_{3}\right)_{3}, \quad(\mathrm{~g})\) \(\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{3},(\mathrm{~h}) \mathrm{NaH}_{2} \mathrm{PO}_{4},\) (i) \(\mathrm{KMnO}_{4},(\mathrm{j}) \mathrm{Ag}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)

Short Answer

Expert verified
(a) Potassium Cyanide (b) Sodium Bromite (c) Strontium Hydroxide (d) Cobalt(II) Sulfide (e) Iron(III) Carbonate (f) Chromium(III) Nitrate (g) Ammonium Sulfite (h) Sodium Dihydrogen Phosphate (i) Potassium Permanganate (j) Silver(I) Dichromate

Step by step solution

01

(a) KCN

KCN is composed of a potassium (K) cation and a cyanide (CN) anion. Therefore, the name of this compound is Potassium Cyanide.
02

(b) NaBrO2

NaBrO2 is composed of a sodium (Na) cation and a bromite (BrO2) anion. The name of the compound is Sodium Bromite.
03

(c) Sr(OH)2

Sr(OH)2 contains a strontium (Sr) cation and two hydroxide (OH) anions. The compound is called Strontium Hydroxide.
04

(d) CoS

CoS consists of a cobalt (Co) cation and a sulfide (S) anion. Since cobalt is a transition metal with multiple possible oxidation states, we need to determine its charge. The sulfide anion has a charge of -2, so the cobalt cation must have a charge of +2 to form a neutral compound. The compound is named Cobalt(II) Sulfide.
05

(e) Fe2(CO3)3

Fe2(CO3)3 is formed with two iron (Fe) cations and three carbonate (CO3) anions. Like cobalt, iron is also a transition metal with multiple possible oxidation states. Carbonate ions have a charge of -2, so each iron cation must have a charge of +3 to balance the overall charge. The compound is named Iron(III) Carbonate.
06

(f) Cr(NO3)3

Cr(NO3)3 is composed of a chromium (Cr) cation and three nitrate (NO3) anions. Like other transition metals, chromium has multiple oxidation states. Nitrate anions have a charge of -1. To form a neutral compound, the chromium cation must have a charge of +3. The compound is named Chromium(III) Nitrate.
07

(g) (NH4)2SO3

(NH4)2SO3 has two ammonium (NH4) cations and one sulfite (SO3) anion. Ammonium ions have a charge of +1 and sulfite ions have a charge of -2. The compound is called Ammonium Sulfite.
08

(h) NaH2PO4

NaH2PO4 contains one sodium (Na) cation, one hydrogen (H), and one phosphate (PO4) anion. Sodium ions have a charge of +1, and phosphate ions have a charge of -3. Since there are two hydrogen ions, each hydrogen ion must have a charge of +1. The compound is named Sodium Dihydrogen Phosphate.
09

(i) KMnO4

KMnO4 has a potassium (K) cation and a permanganate (MnO4) anion. The compound is called Potassium Permanganate.
10

(j) Ag2Cr2O7

Ag2Cr2O7 consists of two silver (Ag) cations and two dichromate (Cr2O7) anions. Like other transition metals, silver has multiple oxidation states. Dichromate anions have a charge of -2. To form a neutral compound, each silver cation must have a charge of +1. Thus, the compound is named Silver(I) Dichromate.

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.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

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

One way in which Earth's evolution as a planet can be understood is by measuring the amounts of certain isotopes in rocks. One quantity recently measured is the ratio of \({ }^{129} \mathrm{Xe}\) to \({ }^{130}\) Xe in some minerals. In what way do these two isotopes differ from one another? In what respects are they the same?

Complete the table by filling in the formula for the ionic compound formed by each pair of cations and anions, as shown for the first pair. $$ \begin{array}{|l|c|c|c|c|} \hline \text { Ion } & \mathrm{K}^{+} & \mathrm{NH}_{4}^{+} & \mathrm{Mg}^{2+} & \mathrm{Fe}^{3+} \\ \hline \mathrm{Cl}^{-} & \mathrm{KCl} & & & \\ \hline \mathrm{OH}^{-} & & & & \\ \hline \mathrm{CO}_{3}^{2-} & & & & \\ \hline \mathrm{PO}_{4}{ }^{3-} & & & & \\ \hline \end{array} $$

Elements in the same group of the periodic table often form oxyanions with the same general formula. The anions are also named in a similar fashion. Based on these observations, suggest a chemical formula or name, as appropriate, for each of (b) \(\mathrm{SeO}_{3}^{2-}\) the following ions: (a) \(\mathrm{BrO}_{4}^{-}\), (c) arsenate ion, (d) hydrogen tellurate ion.

Rubidium has two naturally occurring isotopes, rubidium- 85 (atomic mass \(=84.9118\) amu; abundance \(=72.15 \%)\) and rubidium- 87 (atomic mass \(=86.9092\) amu; abundance = \(27.85 \%) .\) Calculate the atomic weight of rubidium.

Mass spectrometry is more often applied to molecules than to atoms. We will see in Chapter 3 that the molecular weight of a molecule is the sum of the atomic weights of the atoms in the molecule. The mass spectrum of \(\mathrm{H}_{2}\) is taken under conditions that prevent decomposition into \(\mathrm{H}\) atoms. The two naturally occurring isotopes of hydrogen are \({ }^{1} \mathrm{H}\) (atomic mass = 1.00783 amu; abundance \(99.9885 \%\) ) and \({ }^{2} \mathrm{H}\) (atomic mass \(=\) 2.01410 amu; abundance \(0.0115 \%\) ). (a) How many peaks will the mass spectrum have? (b) Give the relative atomic masses of each of these peaks. (c) Which peak will be the largest and which the smallest?
See all solutions

Recommended explanations on Chemistry Textbooks

Organic Chemistry

Read Explanation

Chemistry Branches

Read Explanation

Kinetics

Read Explanation

Chemical Reactions

Read Explanation

Chemical Analysis

Read Explanation

The Earths Atmosphere

Read Explanation
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.

Sign-up for free