a. The melting point is −182.5°C. d. The boiling point is −161.5°C. b. The density is 6.67 × 10-4 g/cm3.
The formula for the hydrate is written as BaI2 • 2H2O And it is named barium iodide dihydrate. Mole conversions (DRAW) Nomenclature Help: B: -3 C: -2 N: -1 Cl: -1 Br: -1 I: -2 S, Se, Te: -2 P, As: -3 Si: -4 PER adds one
Molarities of solutions and molar concentrations of ions. Dilution. Determination of molar concentration of solutions via acid-base
25 cm3 of a solution of sodium hydroxide reacts with 15 cm3 of 0.1 mol/dm3 HCl. What is the molar concentration of the sodium hydroxide solution? 4. Succinic acid has the formula (CH2)n(COOH)2 and reacts with dilute sodium hydroxide as follows: (CH2)n(COOH)2 + 2NaOH → (CH2)n(COONa)2 + 2H2O 2.0 g of succinic acid were dissolved in water and the solution made up to 250 cm3. This solution was placed in a burette and 18.4 cm3 was required to neutralise 25 cm3 of 0.1 moldm-3 NaOH.
A) +12 B) +4 C) +6 D) -2 E) 0 34. What is the oxidation number of Cl in
In a precipitation reaction the insoluble product can be identified by the symbol ________. A) (aq) B) (l) C) (g) D) (s) 10. The scientific principle which is the basis for balancing chemical equations is A) the Law of Conservation of Energy. B) the Law of Conservation of Mass. C) the Law of Conservation of Mass
E) All of the above statements (a-d) are true. 9. The factors that most commonly cause chemical reactions to occur are all the following except A) formation of a solid D) transfer of electrons B) formation of a gas E) a decrease in temperature C) formation of
Contents Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 Introduction to Biochemistry Water Amino Acids and the Primary Structures of Proteins Proteins: Three-Dimensional Structure and Function Properties of Enzymes Mechanisms of Enzymes Coenzymes and Vitamins Carbohydrates Lipids and Membranes Introduction to Metabolism Glycolysis Gluconeogenesis, The Pentose Phosphate Pathway, and Glycogen Metabolism The Citric Acid Cycle Electron Transport and Oxidative Phosphorylation Photosynthesis Lipid Metabolism Amino