BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

When 6 M ammonia is added gradually to aqueous copper(II) nitrate, a white precipitate forms. The precipitate dissolves as more 6 M ammonia is added. Write balanced equations to explain these observations. [Hint: Cu2+ reacts with NH3 to form Cu(NH3)42+.]

Interpretation Introduction

Interpretation: It is given that, when 6 M ammonia is added gradually to aqueous copper (II) nitrate, a white precipitate forms. The precipitate dissolves as more 6 M ammonia is added. The balanced equations to explain these observations are to be stated.

Concept introduction: In a balanced reaction, number of atoms is same on both sides of the chemical equation.

Explanation

Explanation

Weak base ammonia (NH3) gives hydroxide ion (OH) in the aqueous solution. The reaction is,

NH3(aq)+H2O(l)NH4+(aq)+OH(aq)

This reaction is already in its balanced form.

Copper (II) nitrate contains Cu2+ ion that reacts with hydroxide ion to produce a white precipitate of copper hydroxide Cu(OH)2(s) . The reaction is,

Cu2+(aq)+OH(aq)Cu(OH)2(s)

The number of oxygen and hydrogen atoms, present on either side of the reaction, is not balanced. The coefficient 2 is added to OH . This balances the number of oxygen and hydrogen atoms. The balanced equation thus obtained is,

Cu2+(aq)+2OH(aq)Cu(OH)2(s)

The precipitate dissolves as more ammonia is added

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Name three carbohydrates that can be built using only glucose monomers.

Biology: The Unity and Diversity of Life (MindTap Course List)

A bread labeled high-fiber. may not be a whole-grain food is a good substitute for whole-grain bread is require...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

How does the sugar-phosphate backbone of RNA differ from the backbone of DNA?

Chemistry for Today: General, Organic, and Biochemistry

A car rounds a banked curve as discussed in Example 6.4 and shown in Figure 6.5. The radius of curvature of the...

Physics for Scientists and Engineers, Technology Update (No access codes included)