
Concept explainers
(a)
Interpretation: Names of the compounds are to be given.
Concept Introduction: The given compounds are inorganic compounds. An inorganic compound consists of a cation and an anion where cation is a positively charged ion and anion is a negatively charged ion. While writing the name of the compound, cation is written first followed by the oxidation state of the metal ion written in roman numerals in parenthesis which is further followed by the name of anion. Oxidation state is written only in cases when the involved metal ion exhibits multiple oxidation states.
(a)

Answer to Problem 21A
The name of compound is Iron (III) nitrate.
Explanation of Solution
Fe is the symbol for Iron. It exhibits +3 oxidation state and the anion is nitrate.
(b)
Interpretation: Names of the compounds are to be given.
Concept Introduction: The given compounds are inorganic compounds. An inorganic compound consists of a cation and an anion where cation is a positively charged ion and anion is a negatively charged ion. While writing the name of the compound, cation is written first followed by the oxidation state of the metal ion written in roman numerals in parenthesis which is further followed by the name of anion. Oxidation state is written only in cases when the involved metal ion exhibits multiple oxidation states.
(b)

Answer to Problem 21A
The name of compound is Cobalt (III) phosphate.
Explanation of Solution
Co is the symbol for Cobalt. It exhibits +3 oxidation state and the anion is phosphate.
(c)
Interpretation: Names of the compounds are to be given.
Concept Introduction: The given compounds are inorganic compounds. An inorganic compound consists of a cation and an anion where cation is a positively charged ion and anion is a negatively charged ion. While writing the name of the compound, cation is written first followed by the oxidation state of the metal ion written in roman numerals in parenthesis which is further followed by the name of anion. Oxidation state is written only in cases when the involved metal ion exhibits multiple oxidation states.
(c)

Answer to Problem 21A
The name of compound is Chromium (III) cyanide.
Explanation of Solution
Cr is the symbol for Chromium. It exhibits +3 oxidation state and the anion is cyanide.
(d)
Interpretation: Names of the compounds are to be given.
Concept Introduction: The given compounds are inorganic compounds. An inorganic compound consists of a cation and an anion where cation is a positively charged ion and anion is a negatively charged ion. While writing the name of the compound, cation is written first followed by the oxidation state of the metal ion written in roman numerals in parenthesis which is further followed by the name of anion. Oxidation state is written only in cases when the involved metal ion exhibits multiple oxidation states.
(d)

Answer to Problem 21A
The name of compound is Aluminium sulfate.
Explanation of Solution
Al is the symbol for Iron. It exhibits +3 oxidation states and it is the only oxidation state that it exhibits. The anion is sulfate.
(e)
Interpretation: Names of the compounds are to be given.
Concept Introduction: The given compounds are inorganic compounds. An inorganic compound consists of a cation and an anion where cation is a positively charged ion and anion is a negatively charged ion. While writing the name of the compound, cation is written first followed by the oxidation state of the metal ion written in roman numerals in parenthesis which is further followed by the name of anion. Oxidation state is written only in cases when the involved metal ion exhibits multiple oxidation states.
(e)

Answer to Problem 21A
The name of compound is Chromium (II) acetate.
Explanation of Solution
Cr is the symbol for Chromium. It exhibits +2 oxidation state and the anion is acetate.
(f)
Interpretation: Names of the compounds are to be given.
Concept Introduction: The given compounds are inorganic compounds. An inorganic compound consists of a cation and an anion where cation is a positively charged ion and anion is a negatively charged ion. While writing the name of the compound, cation is written first followed by the oxidation state of the metal ion written in roman numerals in parenthesis which is further followed by the name of anion. Oxidation state is written only in cases when the involved metal ion exhibits multiple oxidation states.
(f)

Answer to Problem 21A
The name of compound is Ammonium sulfite.
Explanation of Solution
NH4+ is the symbol for Ammonium ion. It is a polyatomic cation with one positive charge. The anion is sulfite.
Chapter 4 Solutions
World of Chemistry
- MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10 Consider the following reaction: CH3OH(g) CO(g) + 2H2(g) (Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.) Part A Calculate AG for this reaction at 25 °C under the following conditions: PCH₂OH Pco PH2 0.815 atm = 0.140 atm 0.170 atm Express your answer in kilojoules to three significant figures. Ο ΑΣΦ AG = -150 Submit Previous Answers Request Answer □? kJ × Incorrect; Try Again; 2 attempts remaining Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship: AGrxn = AGrxn + RTInQ, AGxn+RTInQ, where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a is the reaction quotient. Provide Feedback Next >arrow_forwardIdentify and provide a brief explanation of Gas Chromatography (GC) within the context of chemical analysis of food. Incorporate the specific application name, provide a concise overview of sample preparation methods, outline instrumental parameters and conditions ultilized, and summarise the outcomes and findings achieved through this analytical approach.arrow_forwardIdentify and provide a concise explanation of the concept of signal-to-noise ratio (SNR) in the context of chemical analysis. Provide specific examples.arrow_forward
- Identify and provide a concise explanation of a specific analytical instrument capable of detecting and quantifying trace compounds in food samples. Emphasise the instrumental capabilities relevant to trace compound analysis in the nominated food. Include the specific application name (eg: identification and quantification of mercury in salmon), outline a brief description of sample preparation procedures, and provide a summary of the obtained results from the analytical process.arrow_forwardIdentify and provide an explanation of what 'Seperation Science' is. Also describe its importance with the respect to the chemical analysis of food. Provide specific examples.arrow_forward5. Propose a Synthesis for the molecule below. You may use any starting materials containing 6 carbons or less (reagents that aren't incorporated into the final molecule such as PhзP do not count towards this total, and the starting material can have whatever non-carbon functional groups you want), and any of the reactions you have learned so far in organic chemistry I, II, and III. Your final answer should show each step separately, with intermediates and conditions clearly drawn. H3C CH3arrow_forward
- State the name and condensed formula of isooxazole obtained by reacting acetylacetone and hydroxylamine.arrow_forwardState the name and condensed formula of the isothiazole obtained by reacting acetylacetone and thiosemicarbazide.arrow_forwardProvide the semi-developed formula of isooxazole obtained by reacting acetylacetone and hydroxylamine.arrow_forward
- Given a 1,3-dicarbonyl compound (R1-CO-CH2-CO-R2), indicate the formula of the compound obtaineda) if I add hydroxylamine (NH2OH) to give an isooxazole.b) if I add thiosemicarbazide (NH2-CO-NH-NH2) to give an isothiazole.arrow_forwardAn orange laser has a wavelength of 610 nm. What is the energy of this light?arrow_forwardThe molar absorptivity of a protein in water at 280 nm can be estimated within ~5-10% from its content of the amino acids tyrosine and tryptophan and from the number of disulfide linkages (R-S-S-R) between cysteine residues: Ε280 nm (M-1 cm-1) ≈ 5500 nTrp + 1490 nTyr + 125 nS-S where nTrp is the number of tryptophans, nTyr is the number of tyrosines, and nS-S is the number of disulfide linkages. The protein human serum transferrin has 678 amino acids including 8 tryptophans, 26 tyrosines, and 19 disulfide linkages. The molecular mass of the most dominant for is 79550. Predict the molar absorptivity of transferrin. Predict the absorbance of a solution that’s 1.000 g/L transferrin in a 1.000-cm-pathlength cuvet. Estimate the g/L of a transferrin solution with an absorbance of 1.50 at 280 nm.arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





