Concept explainers
(a)
Interpretation:
The balanced chemical equation for the reaction between butanol and oxygen gas is to be stated.
Concept introduction:
A
Answer to Problem 70E
The balanced chemical equation for the reaction between butanol and oxygen gas is shown below.
Explanation of Solution
Alcohols react in the presence of oxygen to give carbon dioxide and water. This reaction is known as combustion reaction. Butanol reacts with oxygen to form carbon dioxide and water
The unbalanced chemical equation for the reaction between butanol and oxygen gas is as shown below.
The numbers of atoms of elements on the left side of the reaction are not equal to the right side of the reaction. Therefore, the reaction is unbalanced.
Butanol is multiplied by the coefficient two, oxygen gas by twelve. On the right side, carbon dioxide is multiplied by eight and water is multiplied by ten.
Therefore, the balanced chemical equation for the reaction between butanol and oxygen is shown below.
The numbers of atoms of each element on the left side of the reaction are equal to the right side of the reaction. Therefore, the reaction is balanced.
The balanced chemical equation for the reaction between butanol and oxygen gas has been stated.
(b)
Interpretation:
The balanced chemical equation for the heating of
Concept introduction:
A chemical reaction is a process in which rearrangement of atom or ions takes place between two reacting species. A balanced chemical equation represents an equation in which all the reactants and products are written with their stoichiometric coefficient and physical states. The number of atoms of an element on both sides of the equation is equal.
Answer to Problem 70E
The balanced chemical equation for the heating of
Explanation of Solution
A hydrated salt on heating evaporates water molecules to form anhydrous salt. Therefore, Potassium aluminium sulphate dodecahydrate on heating gives anhydrous potassium aluminium sulphate and water vapour.
The completed chemical equation of the reaction for the heating of
The numbers of atoms of elements on the left side of the reaction are not equal to the right side of the reaction. Therefore, the reaction is unbalanced.
Water molecule is multiplied by twelve for balancing the equation.
Therefore, the balanced chemical equation for the reaction for the heating of
The numbers of atoms of each element on the left side of the reaction are equal to the right side of the reaction. Therefore, the reaction is balanced.
The balanced chemical equation of the reaction for heating of
(c)
Interpretation:
The balanced chemical equation for the reaction between phosphoric acid and sodium hydroxide is to be stated.
Concept introduction:
A chemical reaction is a process in which rearrangement of atom or ions takes place between two reacting species. A balanced chemical equation represents an equation in which all the reactants and products are written with their stoichiometric coefficient and physical states. The number of atoms of an element on both sides of the equation is equal.
Answer to Problem 70E
The balanced chemical equation for the reaction between phosphoric acid and sodium hydroxide is shown below.
Explanation of Solution
An acid and base reacts to form salt and water. Phosphoric acid reacts with sodium hydroxide to give sodium phosphate(salt) and water.
The unbalanced chemical equation for the reaction between phosphoric acid and sodium hydroxide is shown below.
The numbers of atoms of elements on the left side of the reaction are not equal to the right side of the reaction. Therefore, the reaction is unbalanced.
A coefficient of
Therefore, the balanced chemical equation for the reaction between phosphoric acid and sodium hydroxide is shown below.
The numbers of atoms of each element on the left side of the reaction are equal to the right side of the reaction. Therefore, the reaction is balanced.
The balanced chemical equation for the reaction between phosphoric acid and sodium hydroxide is stated above.
Want to see more full solutions like this?
Chapter 11 Solutions
Modified Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
- What mass of CaH2 is necessary to react with water to provide enough hydrogen gas to fill a balloon at 20 C and 0.8 arm pressure with a volume of 4.5 L? The balanced equation is: CaH2(s)+2H2O(l)Ca(OH)2(aq)+2H2(g)arrow_forwardIn 1774, C. Scheele obtained a gas by reacting pyrolusite (MnO2) with sulfuric acid. The gas, which had been obtained that same year by Joseph Priestley by a different method, was an element, A. (a) What is the element isolated by Scheele and Priestley? (b) Element A combines with almost all other elements. For example, with cesium it gives a compound in which the mass percent of A is 19.39%. The element combines with hydrogen to give a compound with a mass percent of element A of 94.12%. Determine the formulas of the cesium and hydrogen compounds. (c) The compounds of cesium and hydrogen with element A react with one another. Write a balanced equation for the reaction.arrow_forwardWrite balanced chemical equations for the following reactions: (a) cadmium burned in air. (b) elemental cadmium added to a solution of hydrochloric acid. (c) cadmium hydroxide added to a solution of acetic acid, CH3CO2Harrow_forward
- Sodium perchlorate, NaClO4, is produced by electrolysis of sodium chlorate, NaClO3. If a current of 2.50 103 A passes through an electrolytic cell, how many kilograms of sodium perchlorate are produced per hour?arrow_forwardIf the furnace initially contained 22.322.3 kg of solid calcium oxide and 10.510.5 kg P4O10(l)P4O10(l), how many kilograms of calcium phosphate were produced during the purification of the iron? mass of calcium phosphate:arrow_forwardHow many grams of Lithium phosphate are needed to produce 1.5kg of Lithium sulfate?arrow_forward
- Explain in detail, showing the chemical equilibrium reactions and equations, why the anions of the group Barium and Calcium do not precipitate with a solution of Ba (NO3) 2 in an acidic environment.arrow_forwardThe reaction of lithium with sulfur is similar to that of sodium with sulfur. Write the balanced chemical equation for the reaction of lithium with sulfur. Include phase symbols.arrow_forwardComplete and balance the following equations. Write the entire equation, including the reactants and products, and include the physical state of each species. (a) Na(s) + O2(g)→ (b) K(s) + O2(g)→arrow_forward
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning