SCH4U Lee 2.5

1A1: Integrate existing knowledge of ionic/covalent bonding, lone pairs, formal charge, valence, and Lewis structures to generate chemically-correct organic building blocks. Examine the given line-angle structure and redraw it, correcting all errors of structure (bonding, lone pairs, formal charge, valence, and the octet rule). 14 H3C. CI- H3C CH3 O H3C B-CH3 N-CH3 CH3

Combustion requires three primary components: fuel, energy, and an oxidizer. The fuel is the organic starting material and once the activation energy is achieved, large amounts of energy are rapidly released fragmenting reactants into individual atoms. The components quickly rearrange into smaller and more stable molecules. Oxygen serves as an oxidizer, due to its electronegativity, accepting electrons and forming products including water and carbon dioxide.  Nitroguanidine (CH4N4O2) is used in select fertilizers and more commonly as a component to propel munitions. Suppose a field artillery soldier was calculating how much nitroguanidine was needed to propel a round. The soldier would need to consider the desired volume of gas to displace along the gun tube and the ambient operating conditions. a. Predict the reaction products for the detonation of 1 mole of nitroguanidine. b. Calculate the amount of explosive needed (in pounds) to produce 1500.0 liters of gas at standard temperature…

(Picture attached)   Functional Groups:   1. Benzene 2. Halogen 3. Carboxyl 4. Hydroxyl Identify the functional groups that the 2 molecules contain. Note: each functional group can be used more than once.  Put in numerical order with no space.      Sucarlose =   Ibuprofen =

ow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=assignment-take [References] The combustion of 0.1562 g benzoic acid increases the temperature of a bomb calorimeter by 2.54°C. Calculate the heat capacity of this calorimeter. (The energy released by combustion of benzoic acid is 26.42 kJ/g.) Heat capacity kJ/°C A 0.2186-g sample of vanillin (C8 Hg O3) is then burned in the same calorimeter, and the temperature increases by 3.26°C. What is the energy of combustion per gram of vanillin? Energy kJ/g Per mole of vanillin? Energy kJ/mol

Balanced chemical equation for the combustion of ethanol as a reference. C₂H5OH (1)+30₂ (g) → 2 CO₂ (g) + 3 H₂O(g) C-H=410 kJ/mol Selected Bond Energies O-H=463 kJ/mol How much energy is required to break the bonds in ethanol? Show your work. C-O=358 kl/mol C-C= 348 kJ/mol H-C

Give one possibility for the mystery reactant R in this organic reaction: Pd R + H2 CH3-CH2-CH2-CH3 Specifically, in the drawing area below draw the condensed structure of what R might be. There may be more than one correct answer. Note: keep in mind that the equation above states R and H2 are present in a 1:1 mole ratio. No reaction. Click anywhere to draw the first atom of your structure. ☑ G ☐ : ☐ टे

The name carbohydrate comes from the fact that many simple sugars have chemical formulae that look like water has simply been added to carbon. (The suffix hydrate from the Greek word hydor ("water") means "compound formed by the addition of water.") The actual chemical structure of carbohydrates doesn't look anything like water molecules bonded to carbon atoms (see sketch at right). But it is nevertheless possible to chemically extract all the hydrogen and oxygen from many simple carbohydrates as water, leaving only carbon behind. If you search the Internet for "reaction of sulfuric acid and sugar" you will find some impressive videos of this. Suppose you had (200. g) of ordinary table sugar, which chemists call sucrose, and which has the chemical formula C12H₂2011. Calculate the maximum mass of water you could theoretically extract. Be sure your answer has alunit symbol, and round it to 3 significant digits. 0 HO CH₂OH OH OH OH The actual chemical structure of glucose.

The name carbohydrate comes from the fact that many simple sugars have chemical formulae that look like water has simply been added to carbon. (The suffix hydrate from the Greek word hydor ("water") means "compound formed by the addition of water.") The actual chemical structure of carbohydrates doesn't look anything like water molecules bonded to carbon atoms (see sketch at right). But it is nevertheless possible to chemically extract all the hydrogen and oxygen from many simple carbohydrates as water, leaving only carbon behind. If you search the Internet for "reaction of sulfuric acid and sugar" you will find some impressive videos of this. Suppose you had  300.g  of ordinary table sugar, which chemists call sucrose, and which has the chemical formula  C12H22O11 . Calculate the maximum mass of water you could theoretically extract. Be sure your answer has a unit symbol, and round it to the correct number of significant digits.

5. Acetone and 2-propanol are chemically interconvertible. Reduction (by the addition of the equivalent of H2) of acetone yields 2-propanol. Conversely, oxidation (by the removal of the equivalent of H2) of 2-propanol yields acetone. Is the evaporation data for these substances the same or different? If different, can you account for why this may be the case from a comparison of the Lewis structures of each substance and the IMFs present in each substance? Explain.

Consider the acid-base reaction between iodoethane (CH3CH2I) and hydroxide (-OH). CH3CH2I + OH- --> CH3CH2OH + l- Use the table of bond energies to estimate the change in enthalpy (∆H in kJ/mol) for this reaction. Think about the bonds that are broken and that are formed.  This reaction is endothermic, exothermic or energy neutral   Using your calculation, what can you say about the strengths of the bonds?  -The bonds before the reaction are stronger than the bonds after the reaction. -The bonds after the reaction are stronger than the bonds before the reaction.  or -The bonds before and after the reaction are equivalent in strength.

Nucleotides are molecules that make up the structures of RNA and DNA. Modify the compounds to create adenosine monophosphate (AMP).

Using bond energies and the energy change of the reaction, calculate the bond energy of the CH single bond. Do not round your answer. C4H10 is butane 2C4H10 + 13O2 → 8CO2 + 10H2O . Bond Energy(kJ/mol) C-C 346 O=O 495 C=O 805 O-H 459 Reaction energy(kJ) -5329

This class of organic compounds is unsaturated with one or more carbon-carbon triple bonds. O Alkynes O Alkenes Alkanes Arenes The first member of the aromatic hydrocarbons. C6H6 C6H8 C6H10 C6H12 The molecular formula of the compound isolated by Michael Faraday from the oily residue left by illuminating gas in London street lamps. OC6H6 OC6H8 O C6H10 OC6H12

Hydrogen cyanide can be catalytically reduced with hydro-gen to form methylamine. Use Lewis structures and bond ener-gies to determine ΔH°ᵣₓₙ for HCN(g)+2H₂(g)→CH₃NH₂(g)

Using bond energies and the energy change of the reaction, calculate the bond energy of the CO double bond. Do not round your answer. C3H8 is propane C3H8 + 5O2 → 3CO2 + 4H2O . Bond Energy(kJ/mol) C-H 411 C-C 346 O=O 495 O-H 459 Reaction energy(kJ) -2047

Do the question of ethalpy

Give one possibility for the mystery reactant R in this organic reaction: R+ H₂ Ni - No reaction. CH3 CH2CH3 Specifically, in the drawing area below draw the condensed structure of what R might be. There may be more than one correct answer. Note: keep in mind that the equation above states R and H₂ are present in a 1:1 mole ratio. Click anywhere to draw the first atom of your structure. X Ś 2

Oo.105. Subject  :- Chemistry

Give one possibility for the mystery reactant R in this organic reaction: Pd R+H2 CH3 CH3-CH2-CH2-CH-CH3 Specifically, in the drawing area below draw the condensed structure of what R might be. There may be more than one correct answer. Note: keep in mind that the equation above states R and H2 are present in a 1:1 mole ratio. Click anywhere to draw the first atom of your structure. 口:用 C

Which of the following compounds is a valid Lewis structure of a hydrocarbon? H H-C-Ö-H H HH H-C-N-H H I II H H-C-C-H H III HH H-C-C-H I НН IV I, II, and IV are valid structures of hydrocarbons. Only III is a valid structure of hydrocarbons. All of these compounds are valid structures of hydrocarbons. Only IV is a valid structure of hydrocarbons. III and IV are valid structures of hydrocarbons.

What is the enthalpy change to convert one mole of methane to methanol?