(a)
Interpretation:
The reason for the potassium ion is not given in the equation has to be explained.
Concept introduction:
Balancing reaction:
Balanced reaction is a
Steps in balancing the information
- Step 1: Write the unbalanced equation
- Step 2: Find the coefficient to balance the equation.
- The coefficient should be reduced to the smallest whole number.
(b)
Interpretation:
The reason for the given reaction is a redox reaction has to be explained.
Concept introduction:
Oxidation number:
The oxidation number of an element is zero. The oxidation number of a monoatomic ion equals its charge.
The oxidation number is zero for the summation of the oxidation numbers complete atoms in a complete formula.
The charge on the ion is equal to the summation of the oxidation numbers of complete atoms in poly atomic ion.
The oxidation state of alkali metal
The oxidation state of hydrogen is
An oxidizing agent gains the electrons and is reduced in a chemical reaction and it is electron acceptor.
A reducing agent loses electrons and is oxidized in a chemical reaction and it is electron donor.
The oxidation state is called as oxidation number, which describes degree of oxidation (loss of electrons) of an atom in a chemical compound. Theoretically, the oxidation state is positive, negative or zero.
Oxidation - reduction reaction (Redox reaction): The electrons are transferred to one to other is called oxidation reduction reaction.
(c)
Interpretation:
The oxidizing, reducing agent in the given redox reaction has to be identified.
Concept introduction:
Refer to part (a)
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
OWLV2 FOR MOORE/STANITSKI'S CHEMISTRY:
- Draw a Lewis dot structure for C2H4Oarrow_forward3.3 Consider the variation of molar Gibbs energy with pressure. 3.3.1 Write the mathematical expression for the slope of graph of molar Gibbs energy against 3.3.2 pressure at constant temperature. Draw in same diagram graphs showing variation with pressure of molar Gibbs energies of a substance in gaseous, liquid and solid forms at constant temperature. 3.3.3 Indicate in your graphs melting and boiling points. 3.3.4 Indicate for the respective phases the regions of relative stability.arrow_forwardIn 2-chloropropane, the signal for the H on the C next to Cl should be split into how many peaks?arrow_forward
- 4.4 Consider as perfect gas 3.0 mol of argon gas to which 229 J of energy is supplied as heat at constant pressure and temperature increases by 2.55 K. Calculate 4.4.1 constant pressure molar heat capacity. 4.4.2 constant volume molar heat capacity.arrow_forward3.2 32 Consider calibrating a calorimeter and measuring heat transferred. A sample of compound was burned in a calorimeter and a temperature change of 3.33°C recorded. When a 1.23 A current from a 12.0 V source was passed through a heater in the same calorimeter for 156 s, the temperature changed of 4.47°C was recorded. 3.2.1 Calculate the heat supplied by the heater. 3.2.2 Calculate the calorimeter constant. 3.2.3 Calculate the heat released by the combustion reaction.arrow_forward-.1 Consider the standard enthalpy of formation of gaseous water at 25°C as -241.82 kJ/mol and calculate the standard enthalpy of formation of gaseous water at 100°C.arrow_forward
- 3.5 Complete the following sentences to make correct scientific meaning. 3.5.1 The entropy of a perfect gas. 3.5.2 when it expands isothermally. The change in entropy of a substance accompanying a change of state at its transition 3.5.3 temperature is calculated from its of transition. The increase in entropy when a substance is heated is calculated from itsarrow_forward3.4 Consider the internal energy of a substance 3.4.1 Draw a graph showing the variation of internal energy with temperature at constant volume 3.4.2 Write the mathematical expression for the slope in your graph in 3.4.1arrow_forwardFor a system, the excited state decays to the ground state with a half-life of 15 ns, emitting radiation of 6000 Å. Determine the Einstein coefficients for stimulated absorption and spontaneous emission and the dipole moment of the transition. Data: epsilon 0 = 8.85419x10-12 C2m-1J-1arrow_forward
- Problem a. The following compounds have the same molecular formula as benzene. How many monobrominated products could each form? 1. HC =CC=CCH2CH3 2. CH2=CHC = CCH=CH₂ b. How many dibrominated products could each of the preceding compounds form? (Do not include stereoisomers.)arrow_forwardDon't used Ai solutionarrow_forward4.3 Explain the following terms: 4.3.1 Normal boiling point. 4.3.2 Cooling curve. 4.3.3 Congruent melting. 4.3.4 Ideal solution. 4.3.5 Phase diagram of a pure substance.arrow_forward
- 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
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning