Organic Chemistry Questions

What is the common name of this compound? A) trimethylamine B) diethylamine C) ethylmethylamine D) ethylmethylnitride E) ethyldimethylamine

Write the balanced chemical equations for the reactions in which sodium phosphate is added to copper(II) sulfate and iron(III) chloride, respectively. Include states of matter. copper(II) sulfate and sodium phosphate: iron(III) chloride and sodium phosphate: These are examples of reactions.

What is STP (Standard Temperature and Pressure STP is 730 mm Hg and 273.15 deg C STP is 760 torr and 298 K. STP is 1 atm of pressure and deg C. STP is 700 torr of pressure and deg C.

Which solution contains the largest number of chloride ions? 50.0 mL of 0.60 M MgCl₂ 200.0 mL of 0.40 M NaCl 50.0 mL of 0.60 M AICI,

Complete combustion of 7.50 g of a hydrocarbon produced 23.0 g of CO₂ and 11.0 g of H₂O. What is the empirical formula for the hydrocarbon? Insert subscripts as necessary.

Today, people are struggling with the Covid-19 virus, and many scientists are working on the virus. 3. Which of the following could be the chemistry discipline that studies the effects of virus-related drugs and vaccines on the human body? A) Physiochemistry B) Polymer chemistry C) Biochemistry D) Forensic chemistry E) Petrochemistry

How many electrons are in energy level 3 of the following elements? a. argon b. carbon

How many unpaired electrons are there in the orbital diagram for oxygen? 1 2 3 6 0

What is the maximum mass of pure copper that could be extracted from 175. g of chalcopyrite, a copper ore with the chemical formula CuFeS₂? Be sure your answer has a unit symbol, if necessary, and is rounded to 3 significant digits.

When opening a bottle of perfume, the first scent one can smell is: the Light weight, head note molecules. all Three classes of molecules at once. the Medium weight, heart note molecules. the Heavy weight, bass note molecules.

The following unbalanced equation shows how hydrogen and oxygen combine to form water. 2H₂ + O2 H₂O When the equation is balanced, the coefficient for water (H₂O) will be 4. 0 1 2

What is an orbital? the region of space around the nucleus with the highest probability of finding an electron the exact position of a nucleus at any given moment in time the path that an electron takes around the nucleus a circular energy level where the electron resides

Consider the neutralization reaction 2 HNO3(aq) + Ba(OH)₂ (aq) → 2H₂O(1) + Ba(NO3)₂(aq) A 0.100 L sample of an unknown HNO, solution required 39.3 mL of 0.150 M Ba(OH)₂ for complete neutralization. What is the concentration of the HNO3 solution?

Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction Pb(NO3)₂(aq) + 2NH4I(aq) → Pbl₂ (s) + 2NH4NO3(aq) What volume of a 0.470 M NH4l solution is required to react with 239 mL of a 0.700 M Pb(NO3)2 solution? How many moles of Pbl2 are formed from this reaction?

What will be the result of trying to cook rice by boiling water at an elevation 5,000 meters above sea level compared to doing the same cooking at sea level? The boiling point will be higher at the higher elevation and cooking times will increase. The boiling point will be lower at the higher elevation and cooking times will decrease. The boiling point will be remain the same but cooking will be quicker. The boiling point will be higher at the higher elevation and cooking times will decrease. The boiling point will be lower at the higher elevation but cooking times will increase.

19) Which R group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? A)-CH2-OH B)-CH₂-COO- C)-CH₂- D)- CH₂ CH₂ CH₂ CH2N H3 E) CH2-C–NH,

A barium hydroxide solution is prepared by dissolving 1.53 g of Ba(OH), in water to make 74.3 mL of solution. What is the concentration of the solution in units of molarity? concentration: The barium hydroxide solution is used to titrate a perchloric acid solution of unknown concentration. Write a balanced chemical equation to represent the reaction between barium hydroxide and perchloric acid. chemical equation: If 17.9 mL of the barium hydroxide solution was needed to neutralize a 5.46 mL aliquot of the perchloric acid solution, what is the concentration of the acid? concentration:

Liquid octane (CH₂(CH₂) CH3) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 4.6 g of octane is mixed with 8.48 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 3 significant digits.

Aluminum is on group 13 of the periodic table. Which option describes how aluminum most commonly behaves when forming ions? It loses 1 electron. It loses 4 electrons. It loses 2 electrons. It loses 3 electrons.

Indicate at which step of the replication-transcription-translation process each type of RNA first participates. Place them in the bin where they are first created or first participate. Drag each item to the appropriate bin.

Liquid hexane (CH3(CH₂) CH3) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 6.0 g of hexane is mixed with 31.1 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Round your answer to 2 significant digits.

4 HCl(aq) + MnO₂ (s) ⇒ MnCl, (aq) + 2 H₂O(1) + Cl₂(g) A sample of 43.9 g MnO₂ is added to a solution containing 43.1 g HCI. What is the limiting reactant? HCI MnO₂ What is the theoretical yield of Cl₂? theoretical yield:

What is an IUPAC name of following compound? A. 2-(tert-butyl)-5-chlorohexanoic acid B. 2-(sec-butyl)-5-chlorohexanoic acid C. 2-(tert-butyl)-5-chlorohexanoic acid D. 2-(iso-butyl)-5-chlorohexanoic acid E. 2-(iso-butyl)-5-chloropentanoic acid

1. a) Write a detailed mechanism for the formation of dibenzalacetone. b) Give the IUPAC name of dibenzalacetone. c) Do you expect the configuration of the double bonds in this compound to be E, Z, or a mixture of both? Why?

Bismuth-214 can decay to form either polonium-214 or thallium-210, depending on what type of radiation is emitted. Write a balanced nuclear equation for each process. Give all nuclei in the form X. Bismuth-214 to polonium-214 decay: Bismuth-214 to thallium-210 decay: F

Choose the correct product for the following reaction: 2-bromo-2-methylpropane no reaction 2-bromopropane 2-methyl-2-propanol 2-bromopropanol

Write the complementary sequence for the following DNA sequence, in order from 3 to 5: 5'-CGATATTGAGCTAAGCTT-3 Use all capital letters to write the DNA sequence.

An atom of an unknown element can lose 3 electrons to reach a full octet. Which of the following is most likely to be that element? Calcium with 20 electrons in 2-8-8-2 configuration. Aluminum with 13 electrons in 2-8-3 configuration. Sulfur with 16 electrons in 2-8-6 configuration. Silicon with 14 electrons in 2-8-4 configuration.

A student performs a menthol dehydration experiment with 3.099 grams of pure, powdered menthol (NOT an 85% solution. Pure menthol). The molecular weight of menthol is 156.26 g/mol and the molecular weight of the product, menthene, is 138.25 g/mol. What is the theoretical yield of menthene in grams?

An 80.0 g sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its internal energy increased by 6905 J. What is the specific heat of the gas? C= J/(g. *C)

The first ionization energy of Al is less than that of Mg. Select all of the following statements that are true AND describe factors contributing to the lower first ionization energy of Al as compared to Mg. Al has no aligned spins in a partially filled 3p subshell Al has a filled 3s subshell Mg has a filled 3s subshell Mg has no aligned spins in a partially filled 3s subshell

Given the thermochemical equations X₂ +3 Y₂2 XY3 AH₁ = -370 kJ X₂ +2Z₂ → 2XZ₂ AH₂ = -170 kJ 2Y₂+Z₂2Y₂Z AH3 = -230 kJ Calculate the change in enthalpy for the reaction. 4XY3 +7Z₂6Y₂Z+4XZ₂

A researcher studying the nutritional value of a new candy places a 5.70 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.69 "C. If the heat capacity of the calorimeter is 42.70 kJ-K-¹, how many nutritional Calories are there per gram of the candy? Calories per gram of candy: Callg

A hot lump of 49.1 g of copper at an initial temperature of 87.2 °C is placed in 50.0 mL. H,O initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the copper and water, given that the specific heat of copper is 0.385 J/(g-°C)? Assume no heat is lost to surroundings.

This is the chemical formula for talc (the main ingredient in talcum powder): Mg3 (Si₂O5), (OH)₂ An analytical chemist has determined by measurements that there are 83.9 moles of oxygen in a sample of talc. How many moles of hydrogen are in the sample?

When a 8.00 g sample of KCI is dissolved in water in a calorimeter that has a total heat capacity of 4.73 kJ. K-¹, the temperature decreases by 0.390 K. Calculate the molar heat of solution of KCI.

This Is Un chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE): CH₂OC(CH3)₂ A chemical engineer has determined by measurements that there are 8.79 moles of hydrogen in a sample of methyl tert-butyl ether. How many moles of oxygen are in the sample? Round your answer to 3 significant digits.

What is the maximum mass of pure gold that could be extracted from 2.5 kg of calaverite, a gold ore with the chemical formula Aute? Be sure your answer has a unit symbol, if necessary, and is rounded to 2 significant digits.

Solid aluminum (Al) and chlorine (C1₂) gas react to form solid aluminum chloride (AIC13). Suppose you have 11.0 mol of Al and 5.0 mol of Cl₂ in a reactor. What would be the limiting reactant? Enter its chemical formula below.

Acetylene (C₂H₂) gas and oxygen (O₂) gas react to form carbon dioxide (CO₂) gas and water (H₂O) vapor. Suppose you have 11.0 mol of C₂H₂ and 3.0 mol of O₂ in a reactor. What would be the limiting reactant? Enter its chemical formula below.

"Intermolecular Dehydration of an Alcohol" towards unsymmetrical ether synthesis. Give an example synthesis for methyl phenyl ether using the "Williamson Ether Explain the advantages of the "Williamson Ether Synthesis" compared to an Synthesis".

What is the abbreviation for deoxythymidine-5'-monophosphate? Enter the abbreviated name for the nucleotide. For example, adenosine-5'-triphosphate is abbreviated ATP.

Calculate the number of moles of solute in 37.05 mL of 0.1155 M K₂Cr₂O, (aq). moles of solute: mol

The specific heat of a certain type of metal is 0.128 J/(g-"C). What is the final temperature if 305 J of heat is added to 65.8 g of this metal, initially at 20.0 "C? Tfinal

Select all of the reagents that can be used to produce the Anti-Markovnikov product when reacted with an alkene or alkyne. Select all of the reagents that can be used to produce the Anti-Markovnikov product. A. H₂, Ni B. Li, EtNH), NH C. BH3:THF, H₂O₂, HO D.Hg(OAc)2. THF/H₂O, NaBH4 E. HBr F. HBr. (PhCO) ₂0₂ A B C D E F

Treatment of an organic compound with hot, concentrated hydriodic acid (also known as the Zeisel analysis) yields CH-I, indicating the presence of a methoxyl group (-OCH;). Unknown organic compound F (one of the opium alkaloids used in antispasmodic medicine, whose formula is CisH₂NO3) was treated with hot concentrated hydriodic acid to determine the number of methoxyl groups present in the molecule. When 7.12 mg of compound F is treated with hydriodic acid and the CH-1 thus formed is passed into alcoholic silver nitrate, 10.73 mg of silver iodide is obtained. How many methoxyl groups per molecule of compound F would be indicted by the results of this Zeisel analysis? (3 points)

Nitrogen (N₂) gas and hydrogen (H₂) gas react to form ammonia (NH3) gas. Suppose you have 7.0 mol of N₂ and 2.0 mol of H₂ in a reactor. Suppose as much as possible of the N₂ reacts. How much will be left? Round your answer to the nearest 0.1 mol.

Which of the following statements is true about a reversible reaction that has reached chemical equilibrium? The forward reaction occurs at a faster rate than the reverse reaction. The rate of the forward reaction is increasing while the reverse reaction has completely stopped. The forward and reverse reactions occur at the same rate. The reverse reaction occurs at a slower rate than the forward reaction.

Suppose you separate a 2.37 g mixture of sand and salt and recover 1.44 g of salt. What is the percent by mass of salt in the mixture?

SEP Analyze Data The lines on the phase diagram are labeled X, Y, and Z. Identify which line shows these phases. sublimation: melting: vaporization