Chem 1311 exam 2 - Study guides, Class notes & Summaries

Propane (C₃H₈) reacts with oxygen in the air to produce carbon dioxide and water. In a particular experiment, 38.0g of Carbon Dioxide are produced from the reaction 22.05g of propane with excess oxygen. What is the % yield in this reaction? -94.5 -66.0 -86.4 -38.0 -57.6 correct answer: 57.6 Gaseous argon has a density of 1.40 g/L at standard conditions. How many argon atoms are in 1.00L of argon gas at standard conditions? -4.76x10²² -6.02x10²³ -3.43x10²⁵ -1.59...

Propane (C₃H₈) reacts with oxygen in the air to produce carbon dioxide and water. In a particular experiment, 38.0g of Carbon Dioxide are produced from the reaction 22.05g of propane with excess oxygen. What is the % yield in this reaction? -94.5 -66.0 -86.4 -38.0 -57.6 correct answers57.6 Gaseous argon has a density of 1.40 g/L at standard conditions. How many argon atoms are in 1.00L of argon gas at standard conditions? -4.76x10²² -6.02x10²³ -3.43x10²⁵ -1.59x1...

Solutions can exist in all 3 physical states correct answer: Solid: metal alloys (2 or more metals) Gas: Ex: Air — made of nitrogent oxygen and other gases Liquid: this is what we will be primarily discussing in this chapter, mostly solutions where water is the solvent AKA aqueous solutions Nonpolar solvents dissolve_______ correct answer: Nonpolar solutes Polar solvents dissolve______ correct answer: Polar solutes and many iconic solutes Polar correct answer: unequal sharing of...

consists of a solute and a solvent. correct answerssolution Substance that dissolves in water to give an electrically conducting solution . correct answerselectrolyte no ions in solution! A substance that dissolves in water to give a poor or non-conducting solution. correct answersnon-electrolyte correct answersstrong acids repeated in a complete ionic equation correct answersspectator ions Arrhenius acid correct answersproduces H+ in solution activity series is used for cor...

CHEM 1311 Exam 2 Questions and Answers All Correct NH3 (aq) + HNO3 (aq) = NH4NO3 (aq) is classified as what kind of reaction? - Answer-B) acid-base (produces salt and water) Which solution will be the poorest conductor of electrical current? - Answer-A) Sucrose C12H22O22 1.0 M aqueous solution of the following substances are prepared. Which one would you expect to have the lowest electrical conductivity? - Answer-B) CH3CH2OH (ethanol) which of the following is not a redox reaction? - ...

Chem 1311 Exam 1 - Ch1, 2, 3 (In addition to memorizing polyatomic and monoatomic ions)

Types of Electrolytes: correct answer: -strong: SOLUBLE & IONIC -weak: SOLUBLE & MOLECULAR -non-electrolytes: INSOLUBLE Solubility Rules correct answer: 1. Group 1A Metals (Li+, Na+, K+, etc.) 2. Ammonium (NH4+) 3. Nitrate (NO3-) 4. Acetate (C2H3O2-) or (CH3COO-) 5. Hydrogren Carbonate (HCO3-) 6. Chlorate (ClO3-) 7. Perchlorate (ClO4-) 8. Halogens (Cl-, Br-, I-) EXCEPT W/ (Ag+, Pb2+, Hg2^2+) 9. Sulfate (SO4^2-) EXCEPT W/ (Ag+, Pb2+, Ca2+, Sr2+, Ba2+) Insolubility Rules correct ...

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is the general electron configuration for the outermost electrons of elements in the alkaline earth group? 1) A) ns2np5 B) ns2 C) ns1 D) ns2np6(n -1)d6 E) ns2np4 2) Which of the following is the electron configuration for the bromide ion? 2) A) [Kr]5s24d105p7 B) [Xe] C) [Kr] D) [Ar] E) [Ar]4s23d104p7 3) Valence electrons are electrons located 3) A) in the out...

CHEM 1311 Exam 1 Questions with Correct Answers chemical property - Answer-the way substances may change/react to become another substance physical property - Answer-can be observed without any change to identification and/or composition matter - Answer-anything that has mass and occupies space reactivity, stability, flammability, toxicity, fermentation - Answer-examples of chemical properties malleability, ductility, conductivity, viscosity, boiling/melting point - Answer-examples...

Types of Electrolytes: correct answers-strong: SOLUBLE & IONIC -weak: SOLUBLE & MOLECULAR -non-electrolytes: INSOLUBLE Solubility Rules correct answers1. Group 1A Metals (Li+, Na+, K+, etc.) 2. Ammonium (NH4+) 3. Nitrate (NO3-) 4. Acetate (C2H3O2-) or (CH3COO-) 5. Hydrogren Carbonate (HCO3-) 6. Chlorate (ClO3-) 7. Perchlorate (ClO4-) 8. Halogens (Cl-, Br-, I-) EXCEPT W/ (Ag+, Pb2+, Hg2^2+) 9. Sulfate (SO4^2-) EXCEPT W/ (Ag+, Pb2+, Ca2+, Sr2+, Ba2+) Insolubility Rules correct answ...