Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 2: Problem 101

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.

Short Answer

Expert verified
The chemical formulas for the given ions are: (a) \(\mathrm{BrO}_{4}^{-}\) (as already given), (c) arsenate ion - \(\mathrm{AsO}_{4}^{3-}\), and (d) hydrogen tellurate ion - \(\mathrm{HTeO}_{3}^{-}\).

Step by step solution

01

Finding the pattern for oxyanions

We can use the given oxyanion, \(\mathrm{SeO}_{3}^{2-}\) (selenite ion) as the reference point for our pattern. Selenite ion contains selenium (Se) which belongs to the same group as tellurium (Te), arsenic (As), and bromine (Br). Now we can find the chemical formulas for the other ions.
02

Finding the chemical formula for (a) \(\mathrm{BrO}_{4}^{-}\)

Since bromine (Br) is right above selenium (Se) in the periodic table, we can expect that bromine would form a similar oxyanion as the selenium (Se) - just with one more oxygen atom and a higher oxidation state. Thus, the chemical formula for bromine-containing oxyanion is already given as \(\mathrm{BrO}_{4}^{-}\).
03

Finding the chemical formula for (c) arsenate ion

Arsenic (As) is right above selenium (Se) in the periodic table as well. Selenite ion has the chemical formula \(\mathrm{SeO}_{3}^{2-}\), so based on the same pattern as before for bromine, arsenic is likely to form an oxyanion with the same number of oxygens and similar charge. Thus, the chemical formula for the arsenate ion, which is As-containing oxyanion, should be \(\mathrm{AsO}_{4}^{3-}\).
04

Finding the chemical formula for (d) hydrogen tellurate ion

Tellurium (Te) is right below selenium (Se) in the periodic table, and as before, we can deduce that Te oxyanion should have the same number of oxygen atoms as the Se oxyanion. So the oxyanion should have a formula of \(\mathrm{TeO}_{3}^{2-}\). Now, we need to form the hydrogen tellurate ion, which has one hydrogen (H) atom added to neutralize one negative charge. With that in mind, we can write the chemical formula for hydrogen tellurate ion as \(\mathrm{HTeO}_{3}^{-}\).

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

The element oxygen has three naturally occurring isotopes, with \(8,9,\) and 10 neutrons in the nucleus, respectively. (a) Write the full chemical symbols for these three isotopes. (b) Describe the similarities and differences between the three kinds of atoms of oxygen.

Give the chemical names of each of the following familiar compounds: (a) \(\mathrm{NaCl}\) (table salt), (b) \(\mathrm{NaHCO}_{3}\) (baking soda), (c) \(\mathrm{NaOCl}\) (in many bleaches), (d) \(\mathrm{NaOH}\) (caustic soda), (e) \(\left(\mathrm{NH}_{4}\right)_{2} \mathrm{CO}_{3}\) (smelling salts), (f) \(\mathrm{CaSO}_{4}\) (plaster of Paris).

What can we tell about a compound when we know the empirical formula? What additional information is conveyed by the molecular formula? By the structural formula? Explain in each case.

An atom of rhodium (Rh) has a diameter of about \(2.7 \times 10^{-8} \mathrm{~cm}\). (a) What is the radius of a rhodium atom in angstroms \((\AA)\) and in meters \((\mathrm{m}) ?(\mathbf{b})\) How many \(\mathrm{Rh}\) atoms would have to be placed side by side to span a distance of \(6.0 \mu \mathrm{m} ?\) (c) If you assume that the \(\mathrm{Rh}\) atom is a sphere, what is the volume in \(\mathrm{m}^{3}\) of a single atom?

Write the empirical formula corresponding to each of the following molecular formulas: (a) \(\mathrm{Al}_{2} \mathrm{Br}_{6},\) (b) \(\mathrm{C}_{8} \mathrm{H}_{10},\) (c) \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{O}_{2}\), (d) \(\mathrm{P}_{4} \mathrm{O}_{10}\) (e) \(\mathrm{C}_{6} \mathrm{H}_{4} \mathrm{Cl}_{2}\), (f) \(\mathrm{B}_{3} \mathrm{~N}_{3} \mathrm{H}_{6}\)
See all solutions

Recommended explanations on Chemistry Textbooks

Kinetics

Read Explanation

Organic Chemistry

Read Explanation

Inorganic Chemistry

Read Explanation

Making Measurements

Read Explanation

Chemistry Branches

Read Explanation

Chemical Analysis

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