/*! 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 45 How many hydrogen atoms are in e... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 2: Problem 45

How many hydrogen atoms are in each of the following: (a) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\), (b) \(\mathrm{Ca}\left(\mathrm{CH}_{3} \mathrm{COO}\right)_{2}\) (c) \(\left(\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4} ?\)

Short Answer

Expert verified
In the given chemical formulas, we have: (a) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) has 6 hydrogen atoms, (b) \(\mathrm{Ca}\left(\mathrm{CH}_{3} \mathrm{COO}\right)_{2}\) has 6 hydrogen atoms, and (c) \(\left(\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4}\) has 12 hydrogen atoms.

Step by step solution

01

(a) Counting hydrogen atoms in \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)

In this chemical formula, there are two types of hydrogen atoms. The first type is the \(\mathrm{H}_{5}\) atoms, which means there are 5 hydrogen atoms present. The second type is the \(\mathrm{OH}\) group, which contains a single hydrogen atom. In total, there are 5 + 1 = 6 hydrogen atoms in this molecule.
02

(b) Counting hydrogen atoms in \(\mathrm{Ca}\left(\mathrm{CH}_{3} \mathrm{COO}\right)_{2}\)

In this chemical formula, we have the calcium ion (\(\mathrm{Ca}^{2+}\)) bonded with the acetate anion (\(\mathrm{CH}_{3} \mathrm{COO}^-\)) twice. Inside the \(\mathrm{CH}_{3} \mathrm{COO}\) group, we have the \(\mathrm{CH}_{3}\) part with 3 hydrogen atoms, and the \(\mathrm{COO}\) part does not have any hydrogen atoms. In total, we have 2 acetate anions, so we have 2 * 3 = 6 hydrogen atoms in this molecule.
03

(c) Counting hydrogen atoms in \(\left(\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4}\)

In this chemical formula, we have the ammonium ion (\(\mathrm{NH}_{4}^+\)) bonded with the phosphate anion (\(\mathrm{PO}_{4}^{3-}\)). There are 3 ammonium ions present in this molecule. Each ammonium ion has 4 hydrogen atoms. In total, there are 3 * 4 = 12 hydrogen atoms in this molecule.

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!

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

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

Write the chemical formulas for the following compounds: (a) aluminum hydroxide, (b) potassium sulfate, (c) copper(I) oxide, (d) zinc nitrate, (e) mercury(II) bromide, (f) iron(III) carbonate, (g) sodium hypobromite.

Fill in the gaps in the following table, assuming each column represents a neutral atom: $$ \begin{array}{|l|c|c|c|c|c|} \hline \text { Symbol } & { }^{65} \mathrm{Zn} & & & & \\ \hline \text { Protons } & & 44 & & & 92 \\ \hline \text { Neutrons } & & 57 & 49 & & \\ \hline \text { Electrons } & & & 38 & 47 & \\ \hline \text { Mass no. } & & & & 108 & 235 \\ \hline \end{array} $$

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 the following ions: (a) \(\mathrm{BrO}_{4}\) -, (b) \(\mathrm{SeO}_{3}{ }^{2-},(\mathrm{c})\) arsenate ion, (d) hydrogen tellurate ion.

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 \(H_{2}\) is taken under conditions that prevent decomposition into 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

The Earths Atmosphere

Read Explanation

Making Measurements

Read Explanation

Physical Chemistry

Read Explanation

Chemical Analysis

Read Explanation

Chemical Reactions

Read Explanation

Ionic and Molecular Compounds

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.