Iodate - Study guides, Class notes & Summaries

why do we perform iodometric titrations - correct answer to find the concentration of an unknown by mixing it with a solution of known concentration What are the 4 (general) steps of an iodometric titration? - correct answer combine solutions, reach endpoint, calculate, determine the concentration of the unknown What reaction takes place during an iodometric titration? - correct answer oxidation-reduction reaction what is used as the oxidizing agent in an iodometric titra...

Fumaric acid has two conjugate base forms, with pKa1=3.02 and pKa2=4.48, at what pH value αHA- got its largest fractions? a. 3.02 b. 4.48 c. 3.75 d. 5.41 c. 3.75 For a diprotic system, the equation for the fraction of A2-(αA2-) is a. αA2- = K1K2/([H+]2+[H+]K1+K1K2) b. αA2- = [H+]2/([H+]2+[H+]K1+K1K2) c. αA2- = K1K2/([H+]+[H+]K1+K1K2) d. αA2- = [H+]2/([H+]+[H+]K1+K1K2) a. αA2- = K1K2/([H+]2+[H+]K1+K1K2) A 25.00mL solution of 0.0316M benzylamine was titratd with 0.02...

findings that are summarized based on a pattern or trend - Law tentative explanation for a set of observations - Hypothesis If a liquid contains 60% sugar and 40% water throughout its composition then what is it called? - Homogeneous mixture does not have a uniform composition throughout - Heterogeneous mixture represents a physical change? - Water, when heated, forms steam. How many micrograms are in 65.3 kg? - e. 6.53 × 1010 μg A smart phone has dimensions of 4.9 inches (he...

NTR 343 Final Exam Quiz Bank 2022 1. All of the following B vitamins are involved in oxidative decarboxylation of pyruvate except: c. Folate 2. Explain in scientific detail how certain foods can inhibit the absorption of thiamin. List four food examples. Some foods contain thiaminases which break the weak methylene bridge between the two rings in the thiamin structure. Example foods are raw fish, tea, shrimp, mussels, clams, fish paste, betel nuts, ferns 3. Which of the following is not a...

Introduction to Chemistry 5th Edition by Rich Bauer – Test Bank Description Introduction to Chemistry 5th Edition by Rich Bauer – Test Bank Sample Questions Instant Download With Answer s Introduction to Chemistry, 5e (Bauer) Chapter 3 Chemical Compounds 1) The figure shows all but which of the following? 1. A) two elements and a compound 2. B) a chemical reaction 3. C) one mixture and one pure substance 4. D) three compounds Answer: D Difficulty: 1 Easy Topic: Study of Chemistry Bloom’s: ...

What is oxidation and what is reduction? - CORRECT ANSWER-Oxidation Is Loss Reduction Is Gain What does the oxidising and reducing agent do? - CORRECT ANSWER-Oxidising agent accepts electrons - reduced Reducing agent donates electrons - oxidised How can you work out the concentration of a reducing agent? - CORRECT ANSWER-By titrating a known volume of it against an oxidising agent with a known concentration How can you work out the concentration of an oxidising agent? - CORRECT ANSWER-I...

INORGANIC PHARMACEUTICAL CHEMISTRY 2024 EXAMINATION1. Which one of the following statements is FALSE? A. Hypothyroidism lead to cretinism B. High basal metabolic rate is associated with hyperthyroidism C. Iodine as iodate has expectorant activity D. Iodine as an elemental I2 has no germicidal action. 2. The following are natural sources of Calcium EXCEPT? a) Quick lime b) Celestite c) gypsum d) Limestone 3. From the options below, choose one incorrect match: a) Ca(OH)2 –-------...

1. Which one of the following statements is FALSE? A. Hypothyroidism lead to cretinism B. High basal metabolic rate is associated with hyperthyroidism C. Iodine as iodate has expectorant activity D. Iodine as an elemental I2 has no germicidal action. 2. The following are natural sources of Calcium EXCEPT? a) Quick lime b) Celestite c) gypsum d) Limestone 3. From the options below, choose one incorrect match: a) Ca(OH)2 –-------------Flocculating agent b) MgSO4----------------M...

Chemistry Final Exam (Answered) Oxidation Rules Rule 1: The oxidation number of an element in its free state = 0 (Also true for diatomic elements) -Mg=0,H2=0, C=0 Rule 2: The oxidation number of a monatomic (one-atom) ion is the same as the charge on the ion -Mg^2+=+2, Na^+=+1, O^2-=-2 Rule 3: The sum of all oxidation numbers in a neutral compound is zero. The sum of all oxidation numbers in a polyatomic (many-atom) ion is equal to the charge on the ion. Rule 4: The oxidation numb...

Chemistry Final Exam (Answered) Oxidation Rules Rule 1: The oxidation number of an element in its free state = 0 (Also true for diatomic elements) -Mg=0,H2=0, C=0 Rule 2: The oxidation number of a monatomic (one-atom) ion is the same as the charge on the ion -Mg^2+=+2, Na^+=+1, O^2-=-2 Rule 3: The sum of all oxidation numbers in a neutral compound is zero. The sum of all oxidation numbers in a polyatomic (many-atom) ion is equal to the charge on the ion. Rule 4: The oxidation numb...