Concept explainers
(a)
Interpretation:
In the given acid‑base equilibria, the structure of missing substance has to be shown.
Concept Introduction:
Substituted ammonium ion is the one in which one or more alkyl, aryl, or cycloalkyl groups are substituted instead of hydrogen atoms. There are two important generalizations that is applied to the substituted ammonium ion and they are,
- Substituted ammonium ions are not neutral molecules. They are charged species.
- Nitrogen atom has four bonds in ammonium ion or substituted ammonium ion. The species is positively charged as the fourth bond formed is a coordinate covalent bond.
(b)
Interpretation:
In the given acid‑base equilibria, the structure of missing substance has to be shown.
Concept Introduction:
Amines are a class of organic compounds. They are derivatives of ammonia. Similar to the nitrogen atom in ammonia, the amine nitrogen also has a lone pair of electrons on it. This means that amines can act as proton acceptors. When an amine is added to water a proton is transferred to the nitrogen atom. The resulting solution is a basic solution. This contains ammonium ions and hydroxide ions.
Substituted ammonium ion is the one in which one or more alkyl, aryl, or cycloalkyl groups are substituted instead of hydrogen atoms. There are two important generalizations that is applied to the substituted ammonium ion and they are,
- Substituted ammonium ions are not neutral molecules. They are charged species.
- Nitrogen atom has four bonds in ammonium ion or substituted ammonium ion. The species is positively charged as the fourth bond formed is a coordinate covalent bond.
(c)
Interpretation:
In the given acid‑base equilibria, the structure of missing substance has to be shown.
Concept Introduction:
Amines are a class of organic compounds. They are derivatives of ammonia. Similar to the nitrogen atom in ammonia, the amine nitrogen also has a lone pair of electrons on it. This means that amines can act as proton acceptors. When an amine is added to water a proton is transferred to the nitrogen atom. The resulting solution is a basic solution. This contains ammonium ions and hydroxide ions.
Substituted ammonium ion is the one in which one or more alkyl, aryl, or cycloalkyl groups are substituted instead of hydrogen atoms. There are two important generalizations that is applied to the substituted ammonium ion and they are,
- Substituted ammonium ions are not neutral molecules. They are charged species.
- Nitrogen atom has four bonds in ammonium ion or substituted ammonium ion. The species is positively charged as the fourth bond formed is a coordinate covalent bond.
(d)
Interpretation:
In the given acid‑base equilibria, the structure of missing substance has to be shown.
Concept Introduction:
Amines are a class of organic compounds. They are derivatives of ammonia. Similar to the nitrogen atom in ammonia, the amine nitrogen also has a lone pair of electrons on it. This means that amines can act as proton acceptors. When an amine is added to water a proton is transferred to the nitrogen atom. The resulting solution is a basic solution. This contains ammonium ions and hydroxide ions.
Substituted ammonium ion is the one in which one or more alkyl, aryl, or cycloalkyl groups are substituted instead of hydrogen atoms. There are two important generalizations that is applied to the substituted ammonium ion and they are,
- Substituted ammonium ions are not neutral molecules. They are charged species.
- Nitrogen atom has four bonds in ammonium ion or substituted ammonium ion. The species is positively charged as the fourth bond formed is a coordinate covalent bond.
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Chapter 6 Solutions
EBK ORGANIC AND BIOLOGICAL CHEMISTRY
- 9. OA. Rank the expected boiling points of the compounds shown below from highest to lowest. Place your answer appropriately in the box. Only the answer in the box will be graded. (3) points) OH OH بر بد بدید 2 3arrow_forwardThere is an instrument in Johnson 334 that measures total-reflectance x-ray fluorescence (TXRF) to do elemental analysis (i.e., determine what elements are present in a sample). A researcher is preparing a to measure calcium content in a series of well water samples by TXRF with an internal standard of vanadium (atomic symbol: V). She has prepared a series of standard solutions to ensure a linear instrument response over the expected Ca concentration range of 40-80 ppm. The concentrations of Ca and V (ppm) and the instrument response (peak area, arbitrary units) are shown below. Also included is a sample spectrum. Equation 1 describes the response factor, K, relating the analyte signal (SA) and the standard signal (SIS) to their respective concentrations (CA and CIS). Ca, ppm V, ppm SCa, arb. units SV, arb. units 20.0 10.0 14375.11 14261.02 40.0 10.0 36182.15 17997.10 60.0 10.0 39275.74 12988.01 80.0 10.0 57530.75 14268.54 100.0…arrow_forwardA mixture of 0.568 M H₂O, 0.438 M Cl₂O, and 0.710 M HClO are enclosed in a vessel at 25 °C. H₂O(g) + C₁₂O(g) = 2 HOCl(g) K = 0.0900 at 25°C с Calculate the equilibrium concentrations of each gas at 25 °C. [H₂O]= [C₁₂O]= [HOCI]= M Σ Marrow_forward
- What units (if any) does the response factor (K) have? Does the response factor (K) depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)?arrow_forwardProvide the structure, circle or draw, of the monomeric unit found in the biological polymeric materials given below. HO OH amylose OH OH 행 3 HO cellulose OH OH OH Ho HOarrow_forwardWhat units (if any) does K have? Does K depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)? in calculating the response factorarrow_forward
- Don't used hand raiting and don't used Ai solutionarrow_forwardDon't used Ai solution and don't used hand raitingarrow_forwardOA. For the structure shown, rank the bond lengths (labeled a, b and c) from shortest to longest. Place your answer in the box. Only the answer in the box will be graded. (2 points) H -CH3 THe b Нarrow_forward
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