General organic chemistry Questions and Answers

Which of the following does a real gas have that an ideal gas is assumed not to have? Choose all that apply. A. individual particle volume B. individual particle kinetic energy C. interparticle attractions D. individual particle mass

A chemist prepares a solution of potassium bromide (KBr) by measuring out 0.24 g of KBr into a 250. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Br- anions in the chemist's solution. Be sure your answer is rounded to 2 significant digits.

A mixture of helium and xenon gases, in a 9.25 L flask at 61 °C, contains 0.321 grams of helium and 37.8 grams of xenon. The partial pressure of xenon in the flask is _____ atm and the total pressure in the flask is ____ atm.

Triglycerides are composed of three fatty acids bonded to a glycerol backbone. Explore the structures and properties of triglycerides. The carbon-carbon double bonds of triglycerides will react withhydrogen gas in the presence of a metal catalyst such as Pt. This process will convert the unsaturated triglycerides to saturated triglycerides. What quantity in moles of H2 gas would be required to convert thistriglyceride to a fully saturated triglyceride?

Be sure to answer all parts. Predict the products and balance the following acid-base reactions. Include the states of matter for each reactant and product. (Be sure to enter the entire equation into each answer box.) a. HNO3(aq) + NaOH(aq) → b. H2SO4(aq) + KOH(aq) →

Calculate the Rf value if the solvent moved 14.1 cm and an ink component moved 7.2 cm.

Give the formula for the conjugate base of each species:

PQ-21. Rank the molecules based on the relative intensity of their dipole moments from weakest to strongest. (A) CHCl3<CH₂Cl₂ <H₂O <CH3CH₂OH (B) CHCl3< CH₂Cl2 < CH3CH₂OH <H₂O (D) CH₂Cl₂ <CHCl3 < CH3CH₂OH <H₂O (C) CH₂Cl₂ <CHCl3<H₂O< CH3CH₂OH

Plants undergo photosynthesis in order to provide oxygen into the air, which is vital for the human body to stay alive: 6CO2 + 6 H₂O + light C6H12O6 + 6 O2 If there were 2.38x 10² g of H₂O and 18.6 moles of CO₂, how much C6H12O6 can be produced?

If the half-life of substance A is 0.5 years, how long would it take for 2 grams of substance A to remain given an initial mass of 16 grams? years Do not include units in your answer.

For each reaction, write the chemical formulae of the oxidized reactants in the space provided. Write the chemical formulae of the reduced reactants in the space provided. FeSO (aq) + Mg(s) Fe(s) + MgSO (aq) 1 Pb (s) + Hg(NO3)₂(aq) → Hg(1) + Pb(NO3)₂(aq) 3 AgNO3(aq) + Al(s) 3 Ag(s) + Al(NO₂) (aq) 1 reactants 0 oxidized: 0 reactants reduced: reactants oxidized: reactants reduced: reactants oxidized: reactants reduced: 0 Ś ?

If the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is 3.74, which of the following is TRUE? O [HCHO2] < <[NaCHO2] O [HCHO2] [HCHO2] O [NaCHO2] [NaCHO2] [HCHO2] [NaCHO2]

Courts that use a landmark case as precedent for a decision are using an earlier case as a guide. changing the previous case's decision. using a third party to review the case. sending the case to a higher court for review.

A chemist makes 620. mL of potassium iodide (KI) working solution by adding distilled water to 30.0 mL of a 3.28 water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits. mol L mol L stock solution of potassium iodide in

11.4 g of butane (58.12 g/mol) undergoes combustion according to the following equation. What pressure of carbon dioxide in atm is produced at 324 K in a 1.35 L flask. 2 C4H10 (9) + 13 O2 (g) →8 CO2 (g) + 10 H₂O (g)

QUESTION 14 The base sequence of the strand of DNA complementary to the segment -TGGCAAC- is A)-TGGCAAC- B)-ACCGTT G- C)-ACCGUUG- D)-UCCGTTG- E)-ACGCTUG- E C D B A

Classify each chemical reaction: NaOH(aq) + HBrO(aq) NaBro(aq) + H₂O(1) reaction 2CH, (CH₂), CH₂(g) + 130₂ (g) SCO, (g) + 10H₂O(g) KBr(aq) + AgNO, (aq) 6 1 KNO,(@g) + AgBr() KOH(aq) + HBrO, (ag) KBrO, (aq) + H₂O() type of reaction (check all that apply) combination single replacement double replacement decomposition combination single replacement double replacement decomposition combination single replacement double replacement decomposition combination single replacement double replacement decomposition precipitation combustion acid-base precipitation combustion acid-base precipitation combustion acid-base precipitation combustion acid-base

Using molarity to find solute moles and solution volume Calculate the volume in liters of a 5.11 x 10 mol/L copper(II) fluoride solution that contains 12.0 mol of copper(II) fluoride (CuF₂). Round your answer to 3 significant digits. 0 ☐ X Kyuse ob Ar S

How many moles of water are produced when 3.6 mol. sulfuric acid and excess potassium hydroxide are used in the reaction shown below? H₂SO4 + 2KOH → K₂SO4 + 2H₂O 3.6 mol. 1.8 mol. 2.0 mol. 7.2 mol.

Which statement is a postulate of the kinetic molecular theory of gases? O The pressure exerted by the gas is due to the gas particles sticking to the container walls. O The pressure exerted by the gas is due to the gas particles colliding with the container walls. O The pressure exerted by the gas is due to repulsions between the gas particles.

Using the reaction you just successfully chose in the last problem, assuming that you have 30.0 grams of solid magnesium and an excess amount of HCL how much magnesium chloride would you produce? The balanced equation is ► View Available Hint(s) 77 g MgCl₂ O 117 g MgCl₂ O 0.010 g MgCl O 1.23 g MgCl₂ Mg + 2HCl H₂ + MgCl₂

Give an application for each of the following organic chemicals. (0.5 points each, 2 points total) 1. octane 2. methylaldehyde 3. ethanoic acid 4. propanone

What functional group is shown here: CH3COCH3 ether carboxylic acid. alcohol ketone aldehyde

How much heat energy is required to convert 80.8 g of solid iron at 21 °C to liquid iron at 1538 °C? The molar heat of fusion of iron is 13.8 kJ/mol. Iron has a normal melting point of 1538 °C. The specific heat capacity of solid iron is 0.449 J/(g. *C).

1. Identify 2 possible sources of error. Explain how that source of error could effect your data. For example: If the bottle of acetone was left without the lid on for a long period of time, some of the acetone could evaporate. This would decrease the actual concentration of acetone in the bottle, while students still assume its 4.0 M. Because the true concentration of acetone would be lower, it could possibly slow down their reaction rate and effect their calculated rate. (Because I explained how concentration would effect the rate - you cannot discuss the effect of evaporated reagents - you cannot say if the concentration of iodine or HCI was lower than the true value!)

For the below, give the name of the functional group and the IUPAC name of the molecule: (0.5 point each, 5 points total) CH₂CHCH3 Functional group CH3CH₂NH2 Functional group CH3CCCH₂CH₂CH3 Functional group CH3CH₂COOH CH3CH2CHO CH3COCH₂CH3 Functional group Functional group CH₂OH Functional group CH3COOCH₂CH3 CH3CH₂CH3 Functional group alcohol Functional group CH₂CH₂CH₂CH₂OCH3 Functional group alkyl Functional group alkanes alkyl name name name name name name name methanol name ethyl ethanoate name name propane butane

Which of the following reactions would be classified as oxidation-reduction? Check all that apply. View Available Hint(s) 2Na(s) + Cl₂(g) →2NaCl(s) Na(s) + CuCl(aq)→NaCl(aq) + Cu(s) NaCN(aq)+CuCl(aq)—NaCl(aq)+CuCN(s)

Determine if the indicated species in question is oxidized or reduced from the partial or full reaction shown. (1 point each, 4 points total) Fe3+ in this reaction: Fe(3+) →→ Fe(2+) Mn in this reaction: Mn → Mn(4+) Solid copper in this reaction: Solid copper +02 → copper(1) oxide Hydrogen gas in this reaction: Hydrogen Water gas + Oxygen gas [Choose ] [Choose ] [Choose ] [Choose ] V

Give the name of the missing organic reactant in the following reaction. CH₂0-404₂80 ? + 2 Ag(NH₂)₂2 + 3 OH - + 2 Ag+ 4 NH₂ + 2H₂O

Which of the following contains double bonds? CH,CHCH2CH2CH3 CH3CH₂CH₂CH3 ethene hexyne methane

Choose the correct condensed structure from the name: hexene. OCH3CH₂CH₂CH₂CH₂CH3 CHCCH₂CH3 CH3CH₂CHCHCH₂CH3 CH3CHCHCH₂CH3

Why does the temperature remain constant during a phase change? The heat added during a phase change is used to disrupt the attractive forces between molecules and to increase the motion of the molecules. The heat added during a phase change is only used to disrupt the attractive forces between molecules. The heat added during a phase change is only used to increase the motion of molecules. The heat added during a phase change is only used to increase the vibration of molecules

Which of the following will show the difference in structure between isopropanol (rubbing alcohol) and propanol? Select all that apply. Molecular formula Condensed structural formula Molecular weight Extended structural formula