Organic Chemistry Questions

If 4.00 L of water vapor at 50.2 °C and 0.121 atm reacts with excess iron, how many grams of iron(III) oxide will be produced? 2 Fe(s) + 3 H₂O(g)-->Fe₂O₂ (s) + 3 H₂(g)

A 0.856 mol sample of Kr gas is confined in a 21.9 liter container at 39.2 °C. If the volume of the gas sample is increased to 43.9 L holding the temperature constant, the average force per molecule-wall collision will not enough information to answer the question increase remain the same decrease

Which is the correct net ionic equation for the formation of calcium oxalate kidney stones? Ca²+ (s) + C₂04² (s)--> CaC204(aq) Ca²+ (aq) + C₂04² (aq) -->CaCO3(s) Cat (aq) + C2O4 (aq) -->CaC₂O4(s) Ca2+(aq) + C₂04² (aq)-->CaC₂O4(s)

Upload the model and line formula for Benzoic acid (a benzene ring with COOH attached to one C in the ring). Benzoic acid is insoluble in water but soluble in aqueous sodium hydroxide. Explain mentioning the appropriate IMFs. Hint see canvas lecture Draw the condensed or line formula for sodium benzoate (the benzoic acid deprotonated and a sodium ion counterion) Benzene- COO- Na+

Diazirines (H₂CN2) is a class of reactive organic chemical that, when irradiated with ultraviolet light, will form "carbene." Give a plausible Lewis structure of H₂CNN.

If standard heat of formation of CO₂ is - 400 kJ/mol. The amount of C(graphite) required, if 10 kJ heat is released during the combustion, is g.

A 2 L vessel contains 4 g of Helium and 4 g of H₂ gas at 27°C. After sometime, 50% of the gas having higher average speed is removed. The percentage reduction in total pressure if temperature remains constant is equal to __

Draw the E isomer for CH3CH₂CH=CHCH3 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.

One mole of an alkene (E) on ozonolysis gives two different compounds X and Y. X and Y are the isomers of each other and their molar mass is equal to 58 u, each. Identify the incorrect statement. X and Y are metamers of each other Both X and Y can show tautomerism Compound (E) cannot show geometrical isomerism The number of hyperconjugable H's in (E) is 8

Write a balanced equation with the smallest whole number coefficients and include phases, for each of the following reactions. a) The combustion of gaseous butane, C4H10, to form gaseous carbon dioxide and water vapor. b) Aqueous sodium phosphate and aqueous barium bromide react to form aqueous sodium bromide and solid barium phosphate. c) Solid iron (II) carbonate reacts with diatomic oxygen gas to form solid iron(III) oxide and carbon dioxide gas.

Among PbS, CdS, As₂S3, CuS, HgS, Ag₂S, NiS, COS, Bi₂S3, SnS₂, ZnS a is number of black colour sulphide b is number of white colour sulphide c is number of yellow colour sulphide a²-b/c Find the value of

Two elements, R and Q, combine to form two binary compounds. In the first compound, 28.0 g of R combines with 3.00 g of Q. In the second compound, 7.00 g of R combines with 4.50 g of Q. Show that these data are in accord with the law of multiple proportions. If the formula of the second compound is RQ, what is the formula of the first compound? Compound I:||

A chemist makes 490. mL of potassium permanganate (KMnO4) working solution by adding distilled water to 110. mL of a 0.391 mol/L stock solution of potassium permanganate in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits.

Which choices are correct explanations about the scanning electron microscope (SEM)? (Select all that apply.) Useful resolution range for SEM is much narrower than the optical microscopes. SEM can investigate non conductive samples as good as the conductive ones. Samples for SEM do not need to be polished nor etched. Electron beam is the main light source for SEM. The condensed beam needs to pass through the specimen to obtain the picture for SEM.

What is the mass number for an atom of molybdenum containing 42 protons and 53 neutrons?

2. Draw the structure of isoleucine and determine the charge on a molecule in a(n) a. Acidic solution (pH= 1) b. Neutral solution (pH = 7) c.Basic solution (pH = 11)

Describe how soap works in detail. What interactions are in play and between what?

If you added Na2CO3 to Hcl bubbles would be formed on adding the two reeactants. If you lit a match in the neck of the test tube the flame would immediately be extinguished. Based on the above observations, answer the following questions: a. What evidence is there of a chemical reaction? b. What caused the change in the burning match or split? c. Write a balanced equation for this reaction. d. What type of chemical reaction is this?

With respect to superoxide dismutase, it produces superoxide it employs a ping-pong mechanism of action it uses oxidized molecular oxygen all of the above are true none of the above are true

Ammonia will react with fluorine to produce dinitrogen tetrafluoride and hydrogen fluoride as follows: 2NH 3(g) + 5F 2(g) → N ₂F 4( g) + 6HF( g) How many moles of NH 3 are needed to react completely with 13.6 mol of F ₂? 27.2 mol 34.0 mol 5.44 mol 2.27 mol 6.80 mol

When a single compound breaks up into two or more components, it is called a______reaction ► View Available Hint(s) decomposition combustion combination single replacement

Calculate the AH of a reaction with bond strengths of bonds broken equal to 60 kcal/mol and 107 kcal/mol and bond strengths of bond formed equal to 110 kcal/mol and 88 kcal/mol. -245 kcal/mol 151 kcal/mol 31 kcal/mol -31 kcal/mol

Which of the following correctly summarizes the Pauli Exclusionary Principle? Each electron within an atom will have its own unique set of four quantum numbers. Electrons orbiting an atom fill the lowest available energy levels prior to filling higher energy orbitals. Matter can neither be created nor destroyed. It only changes form during chemical reactions. The ground state or lowest energy state of an atom is the one that contains the maximum number of unpaired electrons. It is fundamentally impossible to know both the location and velocity of an electron at the same time.

The factors that most commonly cause chemical reactions to occur are all the following except a. formation of a solid b. formation of a gas c. formation of water d. transfer of electrons e. a decrease in temperature

Solid manganese (IV) oxide reacts with solid aluminum metal to produce solid manganese and solid aluminum oxide. Balance the equation for this reaction (in lowest multiple integers).

Write a balanced equation for the combination reaction described, using the smallest possible integer coefficients. When hydrogen combines with iodine, hydrogen iodide is formed.

When 7.70 g of hydrocarbon (molar mas = 341.7 g/mol) is burned in a bomb calorimeter, the calorimeter increases in temperature by 2.32°C. If the heat capacity of the bomb calorimeter is 1.356 kJ/°C, what is the heat of combustion for the hydrocarbon, in kJ/mol?

Which of the following is incorrectly named? Pb(NO3)2, lead(II) nitrate NH4CIO4, ammonium perchlorate PO4, phosphate ion Mg(OH)2, magnesium hydroxide NO³-, nitrite ion

An experiment is set up to determine the type of radioactive decay coming from a certain hazardous nuclide. The analytical instrument used in this experiment detects the charge of the particles emitted from the nuclide. When interpreting the results of the experiment, it was discovered that the emitted particles had no charge at all. Which of the following could be the identity of these particles? Select the correct answer below: Positrons Protons y particles β particles

In sickle cell anemia, a mutation occurs and glutamic acid is replaced by valine. What effect would you expect to observe? Since glutamic acid is a polar and valine is nonpolar, the protein would now change its orientation and move towards the interior in aqueous solution. Since glutamic acid is a polar and valine is nonpolar, the protein would now change its orientation and move towards the exterior in aqueous solution. Since glutamic acid and valine are both nonpolar amino acids, both residues would move toward the interior in aqueous solution. Since glutamic acid and valine are both polar amino acids, both residues would move towards the exterior in aqueous solution.

Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced equation: N₂(g) + 3H₂(g) → 2 NH3(g) a What is the maximum mass of ammonia that can be produced from a mixture of 1.20 x 10³ g N₂ and 5.70 x 10² H₂?

A soda bottle is found to have a length of 0.321 meters. Using unit analysis, show what the length of the soda bottle is in feet. Use one of the following to set up the conversion factor. 454 g 1 lb 16 oz 1 m39.4 in= 3.28 feet 2.54 cm= 1 in 1 km 0.621 miles 1 L=1.06 qt 3.79 L=1 gal

What should be the H-NMR multiplicity for a proton (type A) with 3 different protons (types B, C, and D) in its adjacency? quartet triplet doublet of a triplet doublet of a doublet

a. 1,2,5-trimethylcyclohexane b. 3-bromo-1-octyne c. o-iodotoluene d. pichlorophenol e. cis-2-isopropylcyclobutanol f. 2,3-dibromocyclohexene g. trans-4-methylcycloheptanol h. 3-methyl-3-pentanol

Several steps are involved in the industrial production of sulfuric acid. One step involves the oxidation of sulfur dioxide gas to form sulfur trioxide gas. A catalyst is used to increase the rate of production of sulfur trioxide gas. In a rigid cylinder with a movable piston, this reaction reaches equilibrium, as represented by the equation below. 2SO₂(g) + O₂(g) →2SO3(g) + 392 kJ A. Explain in terms of collision theory, why increasing the pressure of the gases in the cylinder increases the rate of the forward reaction. B. State, in terms of the concentration of SO3(g), what occurs when the following changes are made to the equilibrium mixtures. i. More O₂(g) is added. ii. SO3(g) is removed. C. If 40 grams of sulfur trioxide gas, SO3(g) was passed through 250 mL of water, determine the olarity of sulfuric acid formed.

Draw the structure of each amino acid below at low pH (pH= 1), pH = 7.4 and high pH (pH = 14) and classify it as polar or nonpolar. If polar, indicate if the R group is neutral, acidic or basic. Indicate if each is hydrophobic or hydrophilic. a. lysine b. proline c. valine d. tyrosine

Predict the major product of this organic reaction: CH3—CH=CH-CH3 + H2O -> H+ ?

A bottle contained 27.0 mL of a concentrated solution. Water was added to a new volume of 762 mL and the concentration of the diluted solution is 0.444 M. What was the molarity of the concentrated solution?

What is the theme of this poem? Beauty always gives Joy. One has to lead a spiritual life. The thoughts of people change as the season does. Beauty can be used to raise the spirits in times of gloom.

An aqueous magnesium chloride solution is made by dissolving 5.50 moles of MgCl, in sufficient water so that the final volume of the solution is 3.60 L. Calculate the molarity of the MgCl₂ solution.

Assume you are trying to extract pure iron (Fe) from a sample of Fe2O3. What mass (in grams) of iron can be extracted from 75.0 grams of Fe2O3?

Which of the following is true about small and stable nuclei? They contain an odd number of neutrons They contain an equal number of protons and neutrons They contain an odd number of protons They contain an even number of protons

Iron (III) oxide reacts with carbon monoxide according to the equation: Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) a) If 22.55 g Fe2O3 is reacted with excess CO, how many grams of iron can be made? b) If we want to refine 10.0 kg of iron metal, how many moles of carbon monoxide gas do we need? c) If 2.50 moles of Fe2O3 is reacted with carbon monoxide, how many liters of carbon dioxide gas form?

The structure below is a(n) ..... CH3COCH3 A. ether; dimethyl ether; ether B. aldehyde; propanal; acetone C. ketone; propanone; acetone D. ketone; acetone; propanone E. ether; propane oxide; acetone with the IUPAC name...... and the common name

The incomplete combustion of propane gas produces among others A. soot and hydrogen gas B. soot and carbon monoxide C. carbon dioxide and hydrogen peroxide D. aromatic hydrocarbon and sulfur E. sulfur and nitrogen oxides

Consider equal mole samples of dinitrogen monoxide, aluminum nitrate, and potassium cyanide. Rank these from least to greatest number of nitrogen atoms in each sample. potassium cyanide, dinitrogen monoxide, aluminum nitrate aluminum nitrate, potassium cyanide, dinitrogen monoxide dinitrogen monoxide, aluminum nitrate, potassium cyanide potassium cyanide, aluminum nitrate, dinitrogen monoxide

According to Emerson in Section 6 of "Nature," in what way does nature (e.g., going to the woods) restore our faith? A. It causes us to believe that we can slough off old age and become little children again. B. It causes us to believe that nothing can happen to us in life that "nature" cannot repair. C. It causes us to believe that if we just stay in the woods, everything will be like a festival.

If you were writing that one of Emerson's purposes in writing "Self-Reliance" was to convince his readers to be themselves, which passage from the text would you cite to best support your thesis? A. Sec 7: I ought to go upright and vital, and speak the rude truth in all ways. B. Sec 2: This sculpture in the memory'is not without preestablished harmony. C. Sec. 6: The only right is what is after my constitution; the only wrong what is against it.

The radius of a uranium atom is 149 pm. How many uranium atoms would have to be laid side by side to span a distance of 1.15 mm?

4. How many grams of acetylene would be given off if the limiting reagent in the reaction is calcium carbide and you start with 2.00 g? molar mass CaC₂ = 64.1 g/mol molar mass C₂H₂ = 26.0 g/mol Show work. Make sure your answer is clearly indicated, and circle your answer if you upload an image of your work.