Organic Chemistry Questions

Write chemical formulas for the following chemical compounds. Carbon dioxide Rubidium sulfide Copper(II) chloride Trinitrogen pentafluoride Beryllium iodide Cobalt(III) oxide Zinc oxide Silver chloride

"Sociology is the scientific study of social behavior and human groups". In this definition, which key concept deals with the issue of the scope of sociology? - whether there are behaviors sociology does not study. scientific study social behavior human groups none of the above

A classic chemistry class demonstration is the burning of magnesium ribbon with a Bunsen bumer. In this demonstration, two chemical reactions are occurring. Of the two reactions, what is the only limiting reactant? Methane gas from the gas supply. Oxygen that combines with the burning magnesium. Oxygen consumed by the combustion in the Bunsen burner. Magnesium ribbon that is burned.

Social stratification is about inequality among ranked groups. What do such groups have or possess unequally that are also referred to as the dimensions of social stratification? means of production; land, and ownership over people shares in companies; homes; and custom-made automobiles economic wealth; home ownership; and shares in companies economic wealth; prestige; and power

A chemist wants to make a gas-liquid solution. However, the not dissolve readily into the liquid solvent. Which step would MOST likely increase the solubility of the gas in the liquid solvent? Select one: a. Expand the volume of the liquid. b. Increase the temperature of the gas and liquid. c. Lower the pressure of the gas above the liquid. d. Increase the pressure of the gas above the liquid.

A landslide is a geological event caused by interactions between the four spheres. This landslide occurred after several weeks of steady rainfall. Explain how the landslide occurred in terms of potential energy and kinetic energy.

Jessica is doing her pre-lab homework for Chemistry. She is asked to predict how many grams of oxygen gas are produced if 40.0 g of potassium chlorate is decomposed according to this balanced chemical equation shown. 2KCIO3(s)-2KCI(s)+302(g) She performs the following calculation, and gets 15.7 g of O2 as her answer. The next day when her group performs the experiment they obtain an actual yield of 14.5 grams of oxygen gas. What is the percent yield for the experiment? report your answer to the tenths place, i.e. one decimal place.

Jose makes two mixtures. Mixture one contains 10 g of salt dissolved in 50 mL of water. Mixture two contains 20 g of salt dissolved in 50 mL of water. Compare the concentrations of the two mixtures. Select one: a. The mixtures are of equal concentration. b. Mixture two is more concentrated than mixture one. c. Both mixtures are equally concentrated. d. Mixture one is more concentrated than mixture two.

Curious Carl and his lab partner need 680.96 mL of a 0.6148 M CUSO4 solution for lab. Unfortunately, all they have is 1 liter of a 1.7971 M CuSO4 stock solution. Cheryl, his lab partner, knows what to do. She begins diluting the stock solution with distilled water. How much 1.7971 M stock solution is required to make 680.96 mL of a 0.6148 M solution? a. 1990 b. 233.0 c. 616.3 d. 0.2330

A student conducted an experiment and combined sodium chloride with magnesium hydroxide to produce sodium hydroxide and magnesium chloride. The student collected the 120 grams of NaOH. How many moles of NaOH were formed in the experiment? 160 3.0 4800 0.33

Samuel is applying to three different law schools. (main) They are all located in California. (adj) Samuel is applying to three different law schools who are all located in California. Samuel who is applying to three different law schools which are all located in California. Samuel is applying to three different law schools that are all located in California. Samuel who are all located in California is applying to three different law schools.

What volume (L) of Hydrogen (H2) could be produced by mixing 3.58 Liters(L) of Hydrochloric acid (HCI)?/¿Qué volumen (L) de hidrógeno (H2) podría producirse mezclando 3.58 litros de ácido clorhídrico (HCI)

A sample of oxygen occupied 619 mL when the pressure increased to 1182.22 mm Hg. At constant temperature, what volume did the gas initially occupy when the pressure was 347.84 mm Hg? a. 2104 b. 182.1 c. 2129 d. 664.3

Bleach is everyone's goto for cleaning up spills of biological fluids (deliberate or not). The conjugate acid of the active component in bleach is hypochlorous acid, HOCI(aq), which, it turns out, is rather a weak acid. (a) State the expression for the ionic product constant of water, Kw. (1 point) (b) The active component of household bleach is sodium hypochlorite, NaOCI(aq), at a concentration of 0.705 mol dm³. The hypochlorite ion, OCI (aq), is a weak base. OCI (aq) + H₂O(1) --> HOCI(aq) + OH(aq) (i) The pka value of HOCI(aq) is 7.52. Determine the Kb value of OCI-(aq) assuming a temperature of 298 K. (ii) Determine the concentration of OH-(aq), in mol dm-3, at equilibrium and state one assumption made in arriving at your answer other than a temperature of 298 K. (iii) Calculate the pH of the bleach.

The amount of a radioactive element left after a certain number of hours can be determined by the function A(t) = A (1-p) where Ao is the initial amount of the element, t is the time in hours, and 0<p<1. What is the meaning of 1-p in terms of the context ? Enetr your answer in the space provided. After 2 hours, 36% of a certain element remains. If a sample has an initial amount of 100 grams, how many hours will it take until only 1 gram remains? Provide an answer supported by valid mathematical reasoning and /or calculations

According to collision theory, in order for two molecules to bond they must collide with each other. The collision must also have enough energy and hit with the proper orientation. Which of these will increase the rate of a chemical reaction? Select one: a. Increasing the size of the container holding the substances. b. Decreasing the temperature of the substances that are reacting. c. Increasing the amount of the substances to the reaction chamber. d. Decreasing the pressure on the substances in the reaction chamber.

In high school, it is common for children of the rich to flaunt their affluence with nifty clothing and expensive gadgets meant to provoke the envy of their schoolmates. This type of behavior is called: Conspicuous consumption invidious consumption conspicuous compassion prestige-seeking

A 46.6 L sample of gas at 36.9 °C and 218.2 mm Hg expands to 234.5 L at 10 °C. What is the new gas pressure? a. 39.6 b. 11.8 c. 47.5 d. 1.40

"A Poison Tree" By William Blake I was angry with my friend; I told my wrath, my wrath did end. I was angry with my foe: I told it not, my wrath did grow. And I watered it in fears, Night & morning with my tears: And I sunned it with smiles, And with soft deceitful wiles. And it grew both day and night. Till it bore an apple bright. And my foe beheld it shine, And he knew that it was mine. And into my garden stole, When the night had veild the pole;

BF, has various applications. One example is its use for producing adhesives. Given the chemical structure of BF,, would you expect it to be used as an adhesive to attach to polar or non-polar molecules? In formulating your answer, include the following information below: nuptry (shape) of d. Is BF, polar or non-polar? 3 termine f. Is water polar or non-polar? ng the e. Do you expect BF, to be water soluble? Why or why not?

A wax candle is lit and then placed into a small, closed container. After a few minutes, the candle goes out. What is the limiting reactant of the reaction described here? wax carbon dioxide oxygen closed container

Draw the best Lewis structure for the following acids (hint!: the acidic H is bonded to O in an acid). Evaluate each atom using formal charge, showing your math work as well as your formal charge answers. b. The N ion can be drawn with two double bonds, or with a single bond and a triple bond. Both structures satisfy the octet rule. Use formal charge to evaluate the structures. Which do you think is the better choice? Give reasons to support your choice.

Which of the unknowns have equal numbers hydroxide (OH) and hydronium (H₂O ions? Yellow Teal Navy blue Light Green Blue

Phosgene, COCl2, is usually produced by the reaction between carbon monoxide and chlorine according to the equation: CO (g) + Cl2 (g) = COCI2 (9) (i) Deduce the equilibrium constant expression, Kc, for this reaction.(1 point) (ii) At exactly 600 °C the value of the equilibrium constant is 0.200. Calculate the standard Gibbs free energy change, AG°, for the reaction, in kJ, using sections 1 and 2 of the data booklet. State your answer to three significant figures. (3 points)

Write condensed structures for each of the following compounds. a. 2,2,4-trimethylpentane b. 5-isopropyl-2-methyloctane 1,1,3,3-tetrabromopropane d. 1,1-dichlorocyclopentane c. 1,4-diethylcyclohexane f. 1-bromo-2-methylcyclobutane

In The War of the Worlds, where does the narrator begin the story? A. After the events of the story have taken place B. In the middle of the story's main source of action C. At an unknown time period within the story D. Before the events of the story have happened

What is the name of a substance that can either donate a hydrogen ion or accept a hydrogen ion depending on what it is reacting with (water is the most common example)? alkaline acid indicator Oamphoteric

When potassium chlorate and sugar are heated up together, a burst of flame and smoke are produced. Use the following reaction to predict the AS sign. AS will be negative. AS will not change. AS will be positive. C12H22011(s) + 8 KCIO3(s) → 12 CO2(g) + 11 H₂O(g) + 8 KCl (s)

Propene is an important starting material for many products. The following shows some compounds which can be made from propene, C3H6. C3H6O a) An experiment was carried out to determine the order of reaction between one of the isomers of C3 H7 Cl and aqueous sodium hydroxide. The results (in the table) were obtained (i) Determine the rate expression from the results (1 point) (ii) explain your method. (2 points) Propene (C3 H6) C3 H7 Cl → C3H8 O Experiment 1: [C3 H7 Cl] = 0.05 [OH-] = 0.10 Initial rate (mol dm Experiment 2: [C3 H7 Cl] = 0.10 [OH-] = 0.20 Initial rate (mol dm Experiment 3: [C3 H7 CI] = 0.15 [OH-] = 0.10 Initial rate (mol dm-3

Given the reaction: 2 A (g) +B (g) → 3 C (g) + 2 D (g) The equilibrium constant for the reaction is 390 at 25 °C. At equilibrium, the concentration of A is 0.092 M, the concentration of B is 0.085 M and the concentration of D is 0.074 M. What is the equilibrium concentration of C? (4 points)

Given the reaction: Show all your work 3 A (aq) + B (1) 2 C (aq) + 2 D (aq) a) What is the expression for the equilibrium constant? (1 point) b) Using your equation from above, what is the value of the equilibrium constant if at equilibrium [A] is 0.3 M, and both [C] and [D] is 0.00061 M ? (3 points)

What is the name of the following acid: H₂CO₂ hydrocarbonic acid hydrocarbonous acid carbonic acid carbonous acid

According to the Bronsted-Lowry definition, a base is a substance that Accepts a hydrogen ion (H¹) Gives off a hydrogen ion (H) Accepts a hydroxide ion (OH) Gives off a hydroxide ion (OH)

The pH of a base is measured. Which of the following is the most likely reading? 1 12 52 7

A student measures the pH of a solution with a pH meter and finds the pH to be 2.4. This substance is most likely... detergent distilled water bleach stomach acid

The newly-discovered element X (Xeruvium) is a transition metal that can have multiple oxidation states and has a molar mass of 37.70 g/mol. What is the molar mass of the compound X(SO3)2? 235.54 g/mol 165.77 g/mol 291.42 g/mol 197.84 g/mol

Given the equation below, how many grams of H₂O would be formed when 64.79 grams of H3PO4 is reacted with excess CuO? Remember to round your answer to the nearest 0.01 and include both units (properly abbreviated) and substance formula in your answer. 3 CuO + 2 H3PO4 --> Cu3(PO4)2 + 3 H₂O

Water can act as either an acid or a base, depending on its surroundings. This means water is... amphoteric. always neutral. triprotic an indicator

Which of the following is true of SN2 reactions? They require two mechanism steps. They involve two nucleophiles. They do not require a leaving group. Requires a backside addition They require two electron-poor species to react.

Calculate the molarity of a solution if 42 grams of NaCl is dissolved in 780 mL of water. 56 M 0.92 M 1.1 M 54 M

Which of the following is not true about nucleophilic acyl substitution reactions with an acid anhydride (assuming that the required acid or base catalyst is present when needed)? Ammonia can serve as the nucleophile reacting with the anhydride to form an amide Chloride ion can serve as the nucleophile reacting with the anhydride to form an acyl chloride Water (with heat) can serve as the nucleophile reacting with the anhydride to form carboxylic acids Methanol can serve as the nucleophile reacting with the anhydride to form a methyl ester

A clean strip of copper is dipped into a solution of magnesium sulfate. Predict what you might observe. (Hint: use activity series) The copper becomes coated in magnesium. The copper dissolves and the solution turns blue. Bubbles appear as hydrogen gas is produced. No reaction occurs.

Using (3) compute the crystal field splitting for each of the complex ions. Convert your answers to kJ/mol. Record these values. Finally examine each of your plots and determine if the color seen is consistent with each of the A vs. A spectra. A simple yes or no answer is not sufficient. Justify your answers.

A student conducts an experiment to determine the specific heat of iron. The student calculated the specific heat to be 0.40 J/g°C. The actual value is 0.45 J/g°C. Calculate the percent error. SHOW ALL WORK

For this assignment, you are to attend any live musical performance of your choice (vocal or instrumental). In no less than 600 words, describe the following using at least three (3) vocabulary terms: 1) The overall description of the performance environment 2) Description of behavior (audience and performers) 3) Description of sound (musical characteristics, soundscape) 4) Reason for choosing this performance 5) Description of highlight of performance 6) Overall summary

What do the SI prefixes giga and micro represent, respectively (order same as listed)? A. 109 and 10-6 B. 10-⁹ and 10-6 C. 106 and 10⁹ D. 10-6 and 10⁹ E. 109 and 106

HCO3 + H₂→ H₂CO3 + OH In the equation above, what is the conjugate acid? OH OH₂CO3 OH₂0 HCO3

HCO3 + H₂→ H₂CO₂ + OH™ In the equation above, what is the conjugate acid? OH™ H₂CO3 OH ₂0 OHCO3

Question 1 (1 point) Use the balanced equation to answer the following question. C5H12 +802 --> 5CO₂ + 6H₂O i. 2C5H12:402 ii. C5H12 : 802 iii. C5H12 : 6H₂O iv. C5H12 : 6CO₂ What are the possible molar ratios for C5H12 in the equation above? Ratios iii and iv are correct. Ratio i, ii, and iv are correct. Ratio i and ii are correct. Ratios ii and iii are correct.

Consider the hypothetical atom "X". If the molecular formula for sodium carbonate is Na₂CO3 and the formula of "X" oxide is X203. What is the molecular formula for "X" carbonate? A. X₂(CO3)3 B. X3CO3 C. X3(CO3)2 D. X(CO3)2 E. XCO3