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Concept explainers
(a)
Interpretation:
The balanced equations and Ka expression for the given HCOOH (Brønsted-Lowry acids) in water has to be written.
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.
An equilibrium constant (K) is the ratio of concentration of products and reactants raised to appropriate
For the general acid HA,
HA(aq)+H2O(l)⇌H3O+(aq)+A−(aq)
The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows:
Ka=[H3O+][A−][HA] (1)
An equilibrium constant (K) with subscript a indicate that it is an equilibrium constant of an acid in water.
(b)
Interpretation:
The balanced equations and Ka expression for the given HClO3 (Brønsted-Lowry acids) in water has to be written.
Concept introduction:
Balancing reaction:
Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side.
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.
An equilibrium constant (K) is the ratio of concentration of products and reactants raised to appropriate stoichiometric coefficient at equlibrium.
For the general acid HA,
HA(aq)+H2O(l)⇌H3O+(aq)+A−(aq)
The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows:
Ka=[H3O+][A−][HA] (1)
An equilibrium constant (K) with subscript a indicate that it is an equilibrium constant of an acid in water.
(c)
Interpretation:
The balanced equations and Ka expression for the given H2AsO−4 (Brønsted-Lowry acids) in water has to be written.
Concept introduction:
Balancing reaction:
Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side.
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.
An equilibrium constant (K) is the ratio of concentration of products and reactants raised to appropriate stoichiometric coefficient at equlibrium.
For the general acid HA,
HA(aq)+H2O(l)⇌H3O+(aq)+A−(aq)
The relative strength of an acid and base in water can be also expressed quantitatively with an equilibrium constant as follows:
Ka=[H3O+][A−][HA] (1)
An equilibrium constant (K) with subscript a indicate that it is an equilibrium constant of an acid in water.
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Chapter 18 Solutions
Chemistry: The Molecular Nature of Matter and Change
- Don't used hand raitingarrow_forwardQuizzes - Gen Organic & Biological Che... ☆ myd21.lcc.edu + O G screenshot on mac - Google Search savings hulu youtube google disney+ HBO zlib Homework Hel...s | bartleby cell bio book Yuzu Reader: Chemistry G periodic table - Google Search b Home | bartleby 0:33:26 remaining CHEM 120 Chapter 5_Quiz 3 Page 1: 1 > 2 > 3 > 6 ¦ 5 > 4 > 7 ¦ 1 1 10 8 ¦ 9 a ¦ -- Quiz Information silicon-27 A doctor gives a patient 0.01 mC i of beta radiation. How many beta particles would the patient receive in I minute? (1 Ci = 3.7 x 10 10 d/s) Question 5 (1 point) Saved Listen 2.22 x 107 222 x 108 3.7 x 108 2.22 x 108 none of the above Question 6 (1 point) Listen The recommended dosage of 1-131 for a test is 4.2 μCi per kg of body mass. How many millicuries should be given to a 55 kg patient? (1 mCi = 1000 μСi)? 230 mCiarrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forward
- Don't used hand raiting and don't used Ai solutionarrow_forwardQ3: Arrange each group of compounds from fastest SN2 reaction rate to slowest SN2 reaction rate. CI Cl H3C-Cl CI a) A B C D Br Br b) A B C Br H3C-Br Darrow_forwardQ4: Rank the relative nucleophilicity of halide ions in water solution and DMF solution, respectively. F CI Br | Q5: Determine which of the substrates will and will not react with NaSCH3 in an SN2 reaction to have a reasonable yield of product. NH2 Br Br Br .OH Brarrow_forward
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- 10. The main product of the following reaction is [1.1:4',1"-terphenyl]-2'-yl(1h-pyrazol-4- yl)methanone Ph N-H Pharrow_forwardDraw the Fischer projection for a D-aldo-pentose. (aldehyde pentose). How many total stereoisomers are there? Name the sugar you drew. Draw the Fischer projection for a L-keto-hexose. (ketone pentose). How many total stereoisomers are there? Draw the enantiomer.arrow_forwardDraw a structure using wedges and dashes for the following compound: H- Et OH HO- H H- Me OHarrow_forward
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