Hexane - Study guides, Class notes & Summaries

Chem 219: Module 2 Exam Questions With 100% Correct Answers What are hydrocarbons? - answerMolecules composed of only the elements carbon and hydrogen What are the two major classes of hydrocarbons? - answerAromatic (benzene) and aliphatic (alkanes, alkenes, alkynes) What is the main source of hydrocarbons? - answerFossil fuels like coal, petroleum, and natural gas obtained by mining and drilling. What are Alkanes? - answerThey are saturated hydrocarbons because their skeleton is only c...

DOT HAZMAT 49CFR EXAM QUESTIONS AND CORRECT ANSWERS, WITH COMPLETE SOLUTION. UPDATED 2024/2025. One of these shipping paper descriptions for a hazardous material is in the right order. Which one is it? a. Hydrogen bromide, non flammable gas, UN 1048 b. Corrosive material, hydrochloric acid. UN 1798 c. UN 1787, corrosive material, hydriotic acid d. Hexane, UN 1208, flammable liquid A A placard is required for a combustible liquid at? a. 110 gallons b. 100 gallons c. More than 110 ga...

What does COLOR measure? - Answer-Amount of color units (CU) in a sample. Color caused by natural metallic ions (Fe & Mg) & industrial wastes. What is the test summary for COLOR? - Answer-Sample -> Tubes -> Compare to color standards over light source Which of the following techniques is used to isolate anionic surfactants (as MBAS) from the sample matrix? - Answer-Extraction In the cyanide determination, which one of the following is not an interference? - AnswerHalogenated aromatic...

Chem 219: Module 2 Exam Questions With 100% Correct Answers What are hydrocarbons? - answerMolecules composed of only the elements carbon and hydrogen What are the two major classes of hydrocarbons? - answerAromatic (benzene) and aliphatic (alkanes, alkenes, alkynes) What is the main source of hydrocarbons? - answerFossil fuels like coal, petroleum, and natural gas obtained by mining and drilling. What are Alkanes? - answerThey are saturated hydrocarbons because their skeleton is only c...

Which reagent is not an oxidizing agent? a. NaOCl b. KMnO4 c. K2Cr2O7 d. CrO3 e. H2O - H2O Which statement is false about preparing alkyl halide from alcohol with hydrogen halide? a. it is an SN1 reaction b. tertiary alcohols react faster than secondary alcohols c. the intermediate is a carbocation d. alkyl halide is soluble in conc. HCl e. in the reaction, the slowest step is the formation of a carbocation - alkyl halide is soluble in conc. HCl 2‐Chloro‐2‐methylpentane was tr...

What does COLOR measure? Amount of color units (CU) in a sample. Color caused by natural metallic ions (Fe & Mg) & industrial wastes. What is the test summary for COLOR? Sample -> Tubes -> Compare to color standards over light source Which of the following techniques is used to isolate anionic surfactants (as MBAS) from the sample matrix? Extraction In the cyanide determination, which one of the following is not an interference? Halogenated aromatics Which...

Organic Chemistry 2223 latest update QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+ 2 / 5 1. Amine: 3 / 5 2. Alkyl halide: 3. pentane: Name this. 4. methane: Name this. 5. butane: Name this. 6. propane: Name this. 7. ethane: Name this. 8. hexane: Name this. 9. heptane: Name this. 10. octane: Name this. 11. nonane: Name this. 12. decane: Name this.

TOPIC 4 group 2 metal + oxygen → - ACCURATE ANSWERS solid white oxide group 2 metal + chlorine → - ACCURATE ANSWERS solid white chloride CaCl₂ + 2OH- → - ACCURATE ANSWERS Ca(OH)₂ white precipitate What colour will a solution turn if bromine is displaced? - ACCURATE ANSWERS Orange If hexane added red If an organic solvent, eg. hexane added, the halogen present will dissolve and form a distinct layer above the aqueous solution. What colour will a solution turn if io...

What molality of pentane solution is obtained by dissolving 5.0 g pentane, C5H12, in 245.0 g hexane, C6H14? Enter your answer with two decimal places and no units. Molar mass pentane: 72.15 g/mol Molar mass hexane: 86.18 g/mol - 0.28 5 g pentane x (1 mol/ 72 g)= 0.069 mol pentane 245g > .245 kg hexane 0.069 mol/ .245= 0.28 If an aqueous CsCl solution is 7.28% CsCl (by mass) and has a density of 1.05 g/mL at 20.°C,what is the expected boiling point of the solution? Kb = 0.51°C/m for ...

Chemistry 104 Organic Chemistry- Exam #1; Questions and Answers 100% Solved Alkane Correct answer-Contains only single bonds. Saturated Hydrocarbons Correct answer-Contain the largest possible number of hydrogen atoms per carbon atom (alkanes). Prefixes for alkanes Correct answer-Methane (1 C) Ethane (2 C's) Propane (3 C's) Butane (4 C's) Pentane (5 C's) Hexane (6 C's) Heptane (7 C's) Octane (8 C's) Nonane (9 C's) Decane (10 C'