General organic chemistry Questions and Answers

For the following reaction, 7.99 grams of benzene (C6H6) are allowed to react with 12.2 grams of oxygen gas. benzene (C6H6)(1) + oxygen (g) → carbon dioxide(g) + water(g) What is the maximum amount of carbon dioxide that can be formed? What is the FORMULA for the limiting reagent? What amount of the excess reagent remains after the reaction is complete? grams grams

For the following reaction, 7.99 grams of benzene (C6H6) are allowed to react with 12.2 grams of oxygen gas. benzene (C6H6) (1) + oxygen (g) → carbon dioxide(g) + water(g) What is the maximum amount of carbon dioxide that can be formed? ____ gram What is the FORMULA for the limiting reagent? What amount of the excess reagent remains after the reaction is complete? ____ grams

Draw the structural formula 2,6-dimethyl-4-(2-methylpropyl)decane. Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars. The single bond is active by default.

Where should the recovered p-toluic acid, p-tertbutylphenol and acetanilide be disposed of? A. They should be dissolved in water and washed down the sink. B. They should be dumped into the inorganic waste container in the hood. C. They should be disposed of in the organic waste container in the hood. D. They can be put into a sealed bottle and thrown in the trash.

Draw the structural formula of 1-bromo-2,2-dimethylpropane.

Draw the Newman projection of hexane along the C3-C4 bond of the gauche conformer. Review the Newman projection of butane along the C2-C3 bond in the gauche conformer (Question 3). Does the amount to steric strain differ in the guache conformer of hexane compared the gauche conformer of butane? Explain

Consider the structure of tert-butyl cation below to answer the following question: -C+- (a) How many electrons are in the valence shell of the carbon bearing the positive charge? (b) Predict the bond angles about the central carbon? (c) What hybridization do you predict for the central carbon?

The conversion of 1-butanol to the given compound can be performed with some combination of the reagents listed below. Give the necessary reagents in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A. 1) MeMgBr; 2) H3O+ . B. 1) EtMgBr; 2) H3O+ C. DMP or PCC D. H₂, Lindlar's cat E. conc. H₂SO4, heat F. Na2Cr₂O7, H₂SO4, H₂O

Draw the structural formula of 1-methylcyclopentanol.

For the following reaction, 8.00 grams of benzene (C6H6) are allowed to react with 12.2 grams of oxygen gas. benzene (C6H6) (l) + oxygen (g) → carbon dioxide (g) + water (g) What is the maximum amount of carbon dioxide that can be formed? What is the FORMULA for the limiting reagent? What amount of the excess reagent remains after the reaction is complete?

Which intermolecular force is primarily responsible for the interactions among alkane molecules?

Explain how to write the abbreviated electron configuration for gallium (Ga), and provide the correct abbreviated electron configuration.

Use the model of butane, C4H10. Draw the Newman projection along the C2-C3 bond. Draw all of the staggered and eclipsed Newman conformer projections. Name each conformer. Build a model of hexane, C6H14. Draw the Newman projection along the C2-C3 bond. Draw a staggered and eclipsed Newman projections.

What functional group is shown here: CH3CH₂COOH A. alcohol B. carboxylic acid C. ketone D. aldehyde E. ether

Which of the following are key properties of carbon that are vital for the formation of organic compounds? Select all that apply. A. Four valance electrons B. The ability to bond to atoms of other elements C. The ability to form four bonds D. A mass number of 12

The ratio of n-factor of CuSO4 and KI in the following reaction is x and y respectively. The value of is, x/y is, 2CuSO4 + 4KI -> Cu₂l₂ + 2K₂SO4 +I2

What type of organic molecule would you expect CH3CH₂CH₂CH₂NH₂ to be based on the structural formula? A. Alcohol B. Amine C. Carboxylic acid D. Ester

A compound that contains only carbon, hydrogen, and oxygen is 39.12% C and 8.76% H by mass. What is the empirical formula of this substance? (Enter the elements in the order: C, H, O.)

A compound is found to contain 7.522 % phosphorus and 92.47% iodine by mass. The empirical formula for this compound is _____ The molar mass for this compound is 411.7 g/mol. The molecular formula for this compound is____

Name this compound: CH3COCH₂CH₂CH3 A. pentanol B. pentanone C. pentanal D. ethyl propyl ether E. propyl ethanoate

A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 15.48 mg CO₂ and 7.39 mg H₂O. The molar mass of the compound is 182.2 g/mol. What are the empirical and molecular formulas of the compound?

An alcohol is 68.84 % C and 4.962 % H by mass. The rest is oxygen. What is the empirical formula of the alcohol? Enter the elements in the order C, H, and then O.

An organic acid is composed of carbon (45.45%), hydrogen (6.12%), and oxygen (48.44%). Its molar mass is 132.12 g/mol. Determine the molecular formula of the compound.

A compound is found to contain 38.65 % carbon, 16.25 % hydrogen, and 45.09 % nitrogen by mass. What is the empirical formula for this compound?

Bismuth oxide reacts with carbon to form bismuth metal. Bi2O3(s) + 3C(s)-> 2 Bi(s) + 3CO(g) When 0.234 mol of Bi2O3(s) reacts with excess carbon how many moles of Bi are formed? A. 0.234 mol B. 0.117 mol C. 2.00 mol D. 0.468 mol

List the following carboxylic acids in order from strongest acid to weakest acid: CH₂CH₂CH₂COOH Ka=1.52 x 10-5 CHỊCH,CHCOOH CI Ka=1.39 x 10-3 CICH₂CH₂CH₂COOH Ka=2.96 x 10-5 CH₂CHCH₂COOHCI Ka 8.9 x 10-5

Which is more electronegative, nitrogen or arsenic? Which is a stronger acid, NH3 or AsH3? Which is a stronger acid, CH3NH₂ or CH3 ASH₂?

What is the name of the compound with the formula PCIS? What is the name of the compound with the formula Cu3(PO4)2 ? What is the formula for carbon tetrabromide ? What is the formula for cobalt(III) sulfite?

An alcoholic compound (X) with 5 degrees of unsaturation gives C6H5CH = CH – CH = CH₂ on heating with conc. H₂SO4. The molar mass of (X) is M (in g/mol) (X contains only C, H and O). Then the value of is, (Report the 10 answer to the nearest integer)

(CH3)2 CHCH (CH3) CH₂C (CH3) 3 Draw the molecule by placing atoms on the canvas and connecting them with bonds. Include all lone pairs of electrons.

For many purposes we can treat methane (CH4) as an ideal gas at temperatures above its boiling point of -161. °C. Suppose the temperature of a sample of methane gas is raised from - 12.0 °C to 15.0 °C, and at the same time the pressure is changed. If the nitial pressure was 0.66 kPa and the volume increased by 30.0%, what is the final pressure? Round your answer to 2 significant digits."

What kind of intermolecular forces act between a nitrosyl chloride (NOCI) molecule and a chlorine monofluoride molecule? Note: If there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.

Which of the following choices correctly ranks the atomic radius in order from smallest to largest? (SC.912.P.8.5) Oa Ob Oc Od a. He, Mg, K b. Mg, K, He c. K, Mg, He d. K,He, Mg

A 50 mL sample of NaHCO3 and Na2CO3 is titrated with 12 mL, 0.2 M H₂SO4 using methyl orange indicator to reach end point. Another 50 mL of same sample solution needs 4 mL, 0.2 M H₂SO4 using phenolphthalein indicator. Ratio of m moles of NaHCO3 to Na₂CO3 in the sample is _______.

Choose the best definition for mass number. O Mass number is the mass of all protons in an atom. O Mass number is the sum of the number of neutrons and electrons for an atom. O Mass number is the sum of the number of protons and the number of neutrons for an atom. O Mass number is the mass of an atom.

A rhodium atom has a radius of 173 pm. If you could string rhodium atoms like beads on a thread, how many atoms would you need to have a necklace 40. cm long?

Which best describes the isomer of the ion with the formula [CNO] that is the most stable? O Linear with a central O O Linear with a central N O Bent with a central C O Bent with a central N O Linear with a central C

Ammonia is produced by the chemical reaction of hydrogen and nitrogen. N2(g) + 3H2(g) -> 2NH3(g) a. How many moles of H₂ are needed to react with 1.0 mole of N₂? b. How many moles of N2 reacted if 0.60 mole of NH3 is produced? c. How many moles of NH3 are produced when 1.4 moles of H₂ reacts?

Draw the reagents needed to produce C6H5-C≡C-T.

Which of the following is the primary process by which a sedimentary rock transforms into an igneous rock? A. metamorphism B. melting C. erosion D. deposition

In the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor. hydrogen + oxygen → water If you burn 35.3 g of hydrogen and produce 315 g of water, how much oxygen reacted?

Silicon atoms have 14 total electrons in 2-8-4 configuration. How can a silicon atom reach a full octet? A. Lose 4 electrons. B. Gain 2 electrons. C. Lose 8 electrons. D. Gain 4 electrons.

Sodium (Na) is an element in group 1 of the periodic table. Sulfur (S) is in group 16. Which option represents the ionic compound formed by sodium and sulfur? a. Na₂S b. NaS c. NaS2 d. Na₂S2

Consider an alkene: Some statements regarding the reaction of the above alkene are given below. Select the incorrect statement out of the following. A. On reaction with A/H+/KMnO4, if one of R or R' is H then HCOOH or CO₂ is obtained as a product B. On reaction with 03/H2O, if one of R or R' is H then formic acid or CO2 is produced as a product C. On reaction with 03/Zn, if R = R' then a single product is obtained D. On reaction with Na in Liq. NH3, the alkene is converted to an alkane

Potassium often loses one electron, forming a 1+ ion. If the first five ionization energies of potassium are shown as a graph, which ionization energy would show a sudden sharp increase? A. Fourth ionization energy. B. Third ionization energy. C. Second ionization energy. D. Fifth ionization energy.

An analytical chemist weighs out 0.162 g of an unknown triprotic acid into a 250 mL volumetric flask and dilutes it to the mark with distilled water. She then titrates this solution with 0.0600 M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 82.7 mL of NaOH solution. Calculate the molar mass of the unknown acid.

A chemistry student weighs out 0.161 g of acrylic acid (HCH₂CHCO₂) into a250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1900M NaOH Solution. Calculate the volume of NaOH Solution the student will need to add to reach the equivalence point.

Which of the following does not describe competitive inhibition? A. Inhibitor bears structural resemblance to the substrate B. Inhibitor binds to the active site C. Inhibitor effect is reversed by increase in the substrate concentration D. Allosteric site

1-Butyne is treated with sodium hydride, followed by 1-chloropropane. The resulting product istreated with excess Cl2. What is the IUPAC nameof the final product? 3,4-tetrachloroheptane 2,2,3,3-tetrachloroheptane 3,3,4,4-tetrachloroheptane 2,3-tetrachloroheptane

An analytical chemist weighs out 0.092 g of an unknown monoprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.0700 M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 21.9 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 2 significant digits.