1. Draw the most stable Newman projection for the following molecule. Explain why it is the most stable. Br CH3 НО

Q: 14 and 3 19) The molecular geometry of the PF4+ ion is A) trigonal pyramidal B) octahedral C) trigon...

A: This question is related to chemical bonding. Hybridisation is the phenomenon of mixing of atomic or...

Q: Explain why some precipitates do not dissolve once formed with HCl. Explain by showing some examples

A: A question based on solutions that is to be accomplished.

Q: 1. 50.0 ml of 0.1 M NaOH is added to 100.0 ml of 0.2 M HCN (Ka=6.2x10-10). What is the pH of the sol...

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given: Concen...

Q: Calculate the amount of energy (in kJ) required to heat 100. g of water from 20.0 ºC to 35.0 ºC? (Th...

A: Thermodynamics is branch of chemistry which deals with heat gained or heat lost by the system. 

Q: During electrophilic aromatic substitution, a resonance-stabilized cation intermediate is formed. Gr...

A: An electrophile attacks at more nucleophilic site. In case of electron donating group, ortho and par...

Q: 2) Explain how dipole-dipole forces cause molecules to be attracted to one another.

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Q: Which of the following is most likely to be the first step in the general mechanism for electrophili...

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Q: Following is the structural formula of the principal sex pheromone of the Douglas fir tussock moth (...

A: The Grignard reagent is furnished as R-MgX where R can be an alkyl or aryl group. The notable halide...

Q: : A precipitate of PbI, is formed when 5 mL of 0.012 M Pb(NO,), is added to 5 mL of 0.030 M KI. it w...

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Q: 1. Two cyclic ketones with the chemical formula C2H3O 2. Two enals with the chemical formula CH;O

A: The formula given are C8H8O and C9H8O.    

Q: Chemical Equation: Give the balanced chemical equation for each of the following reactions.  SUBJE...

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Q: 2 K + CuCl2    →   2 KCl  + Cu  How many Cu atoms are produced if 5.1 mole of K is reacted with exc...

A: Potassium metal reacts with copper(II) chloride to form potassium chloride and copper metal. The equ...

Q: a resonance structure t

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Q: Write the IUPAC name for the compound below. Be sure to use correct punctuation. CH2CH3 CH;CH2CHCH=C...

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Q: Calculate the enthalpy change for the reaction below:

A: Enthalpy of the reaction is equal to the difference between enthlpies of products and reactants.

Q: Which of the following elements has the highest first ionization energy?

A: Ionisation energy: the amount of energy required to remove of an electron from a valency shell of  i...

Q: order of th

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Q: Using your knowledge of molecular structure, identify the main intermolecular force in the following...

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Q: Use the References to access important values if needed for this question. Consider the following sy...

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Q: Label the equivalent hydrogens using a, b, c, etc. for the structure below.

A: In NMR spectroscopy we are able to elucidate the structure of the unknown compound . Here We are req...

Q: determine

A: We can do that by checking the polarity of the compound as like dissolved like polar compounds disso...

Q: Consider the reaction described by the equation C,H, Br, (aq) + 31¯ (aq) –→ C,H,(g) + 2 Br¯(aq) + I,...

A: The rate of the reaction is directly proportional to the concentration of the reactants. So rate con...

Q: In each of the following molecules 1-6, identify the relation between the circled hydrogen atoms as ...

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Q: A precipitate of PbI, is formed when 5 mL of 0.012 M Pb(NO,), is added to 5 mL of 0.030 M KI. It was...

A: Given: Concentration of Pb(NO3)2 = 0.012 M Concentration of KI = 0.030 M Volume of KI solution = 5 m...

Q: The vapor-liquid reactive equilibria for ethyl lactate synthesis follows the expression log K = 7.89...

A: The vapour-liquid reactive equilibria equation given is, => log(K) = 7.893 - 2.4312 × 103T And te...

Q: addition of HCI O vigorous effervescence O carbonate ion etching of the glass

A: Given : We have to find out odd one out.

Q: 5. Propose a set of reactions to convert the starting material to the given product. NO2 OMe

A: When nitrobenzene is treated with Sn in presence of HCl, reduction of Nitro group takes place and it...

Q: Draw all of the possible stereoisomers of the compound shown. Group them as enantiomeric pairs, or i...

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Q: The side chain of cysteine is weakly acidic.  Suppose in a protein, the side chain of a cysteine res...

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Q: Alkanes, alkenes, and alkynes contain carbon-carbon ---, ---, and --- bonds, respectively. Questi...

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Q: Gaseous hydrogen and oxygen can be prepared in the laboratory from the decomposition of gaseous wate...

A: The balance chemical reaction :  2H2O(g) ---> 2H2(g) + O2(g)  Mass of water = 14.6 g  Mass of O2 ...

Q: For each of the following sets of experimental data, using a spreadsheet, determine From the slope,...

A: To find: Activation energy, A and K at different temperatures.  

Q: Balance this reaction.  If a coefficient is one, enter "1" explicitly.   P+O2 → P2O5

A: In a balanced reaction, all atoms of all elements and charges should be equal on both sides of the r...

Q: The product of the addition of an oxidizing agent with isopropanol. The product of a reaction betwee...

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Q: 3. Assign and label R/S configuration for all stereogenic centers and assign E/Z to all alkenes on t...

A: R/S configuration: If 4th group is present on wedge then R convert to S or vice versa. E/Z: E--->...

Q: H. K2Cr,O7, H2SO4, distill or PCC, CH,C2, 25 °C O. H.

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Q: Calculate the molecular mass of menthol, C10H200. O 29.02 amu O 140.26 amu 137.11 amu 156.26 amu O 4...

A: The mass of one molecule of a substance is known as molecular mass. The molecular mass of the sum of...

Q: At 90 degrees C. the following equilibrium is established Hy(g) + Sts) H,S(g) Kc 6.8 X 10 If 0.46 mo...

A: The equilibrium reaction given is, Given: Initial moles of H2 = 0.46 mol. Initial moles of S = 0.3 ...

Q: E) Attractive and repulsive forces between gas molecules are negligible. 7) The value of AH° for the...

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Q: Chemical Equation: Give the balanced chemical equation for each of the following reactions.  SUBJE...

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Q: HCI ZnCl

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Q: The solubility of the hydroxide of a hypothetical metal, Me, in water is 94.89 g MeOH per 64.88 mL w...

A: The amount of water is needed 42.82 mL.

Q: Calculate the molarity of a solution containing 5.3 gm of Sodium carbonate in 250 ml.

A: Given :-  mass of sodium carbonate = 5.3 g  volume of solution = 250 mL  To be calculated :-  molari...

Q: What is the mass of 0.0250 mol of P205 ? O 3.55 g O 5676 g O 0.0250 g 35.5 g

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Q: Draw the structure of 2,3-dimethyl-1-butene. • Show stereochemistry only if given in the name. • You...

A: The chemical structure of 2,3-dimethyl-1-butene. It has no stereochemistry.

Q: pH

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Q: Consider the reaction 2H2 + O2 = 2H2O + energy  Which will have higher energies, (H2 + O2) mixture o...

A: Given: Bond enthalpy for C-C = 3.47 ×105 J/mol Bond enthalpy for C=C = 6.11 × 105 J/mol Bond enthal...

Q: A bomb calorimeter must be calibrated to determine the quantity of heat that will be absorbed by its...

A: Given , mass of benzoic acid = 0.5125 g heat yielded = 22.37 kJ mass of water = 1.500 Kg Change in t...

Q: NO2 NH2 Br NO2 НООС b. NO2

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Q: 2. A precipitate of PbI, is formed when 5 mL of 0.012 M Pb(NO,), is added to 5 mL of 0.030 M KI. It ...

A: Molarity of lead nitrate = 0.012 M Volume of lead nitrate = 5mL or 0.005 L Volume of KI = 5 mL or 0....

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.