A Chemistry 20 student uses a thermometer and a hot plate and measures the boiling point of ethyl alcohol to be 74.1 ºC. Then, she looks in a reference book and finds that the actual boiling point of ethyl alcohol is 78.4 ºC. What is her percent error?

Q: Please define acidosis and alkalosis for me. How do buffers help this system work?

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Q: 31. Draw the curved arrow mechanism for the formation of the enolate formed when a ketone reacts…

A: In a ketone, the H attached to the α-carbon atoms are the most acidic.  NaOH or OH- being a strong…

Q: 2. Write the neutralization reaction between Ca(OH)₂ and HCI. Include both the molecular reaction,…

A: Neutralisation between CA(OH)2 & HCl.

Q: In the 1st reaction of citric acid cycle, acetyl CoA and oxaloacetate are combined to form citrate…

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Q: 9. (a) Each of the following reactions involves at least one pericyclic process. Provide mechanisms…

A: Pericyclic reactions are broadly classified into 4 types: 1. Electrocyclic reactions 2. Sigmatropic…

Q: The enthalpy for a certain process is 146.4 kJ/mol and the entropy for the process is 463.6 J/K.  At…

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Q: HI Ba(OH)2 H3PO4 NH3 NaBr Stan es ds d Clear All strong acid weak acid strong base weak base soluble…

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Q: Which solution could be used to precipitate Ba2+ in a water sample? O Ammonium Chloride O Sodium…

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Q: Variation of the rate constant with temperature for the first-order reaction is given in the…

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Q: Use and ICE table and Ke to determine the equilibrium concentration of B for the reaction shown if…

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Q: List the molecules in decrease strength of intermolecular forces. (So the strongest intermolecular…

A: we have to put the given molecules in order of decreasing intermolecular force strength

Q: 1. How many grams of potassium chloride are needed to prepare 400 ml of a 250 M KCl solution? 2.…

A: Formula of molarity and dilution law would be used.

Q: Which of the following is TRUE? O In relaxation methods of kinetic analysis, the equilibrium…

A: Given Question is based upon chemical kinetics.

Q: The balanced chemical equation for the combustion of propane gas is: C3H8 (g) + 5 O2 (g) --> 3 CO2…

A: Given reaction: C3H8 (g) + 5 O2 (g) → 3 CO2 (g) + 4 H2O (g) ∆G°RXN = -2385 kJ Temperature = 17.0 °C…

Q: The oxidation of trichloroethane results in the following reaction equation: 4 CaH,C|a() + 11 0, (g)…

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Q: Can you explain the mechanism? And can you give any shortcut to use on tbe test

A: Consider the mechanism divided into steps as follows:

Q: The equation for photon energy, E, is hc E = X where h = 6.626x10-34 J·s (Planck's constant) and c =…

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Q: Which of the following is TRUE?     In relaxation methods of kinetic analysis, the equilibrium…

A: The detailed explanation is given below.

Q: Classify each statement as a cradle-to-cradle process, a cradle-to-grave process, or both…

A: *Cradle-to-cradle = the product which can be recycled or reused *Cradle-to-grave=the product which…

Q: Chemistry Draw out a complete mechanism for imine formation from the reaction of 4-iodoaniline will…

A: Concepts of imine formation.

Q: Write the thermochemical equations for the given reactions: 1. Nitrogen and oxygen gas combine to…

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Q: A 1.00 L buffer solution is 0.050 M in HC7H5O2 and 0.200 M in LiC7H5O2.  Calculate the pH of the…

A: Given: A 1.00 L buffer solution is 0.050 M in HC7H5O2 and 0.200 M in LiC7H5O2 The Ka for HC7H5O2 =…

Q: What is the limiting reagent in the synthesis of para nitroacetanilide?

A: The synthesis of para nitroacetanilide : Nitration of acetanilide by nitric acid

Q: 1. Classify the following statement “In a chemical reaction between two reactants, the excess…

A: here we are required to find the mass of nitric acid formed as well as the volume of carbon dioxide…

Q: 6. Assign R or S configuration to the stereocentres in the following molecules: H Br (A) (B) (C) (D)…

A: According to guidelines we are supposed to answer one question only. If you want other question to…

Q: 4) Provide a detailed, stepwise mechanism for the acid-catalyzed condensation reaction between…

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Q: 7) Oxidation of a 1° alcohol with chromic acid results in the production of A) an ester D) an acid…

A: we have to select the product of oxidation of primary alcohol with chromic acid

Q: 1) Determine the absolute configuration of the following compounds according to the (E)- (Z)-system

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Q: A student performs the Electrochemistry, [Cu²+], M 0.1 0.01 0.001 0.0001 0.00001 Lab Temperature, "C…

A: In the given cell reaction, Cu is oxidized to Cu2+ while Ag+ is reduced to Ag. The standard…

Q: Which of the following combinations of n and I represent real orbitals and which are impossible?…

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Q: answer the following for the preperat of ibuprofen. AICI₂ H COH H. HỌ heat Ibuprofen 1) LIAIH 2)…

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Q: The sum of the entropy changes of the system and the surroundings (ASsys + ASSURR) are: O Generally…

A: A system and it's surrounding constitute the Universe. System+ Surrounding= Universe

Q: Heptane, C₂H₁6 melts at 770 C is insoluble in water Potassium chloride, KCI does not bum in airs a…

A: Heptane is a hydrocarbon compound. And KCl is an ionic compound.

Q: Platinum is a precious metal that is used as a catalyst for many important industrial reactions.…

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Q: At 28 degrees celsius which of the following compounds would you expect to have the largest kinetic…

A: At 28°C , which of the following compounds would you expect to have the largest kinetic energy??

Q: E The saturated calomel electrode, abbreviated SCE, is often used as a reference electrode in making…

A: Given the standard potential of the saturated calomel electrode(SCE), Eo = 0.242 V

Q: What is the mol ratio of acetanilide and para nitroacetanilide in para nitroacetanilide synthesis

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Q: The molecular weight of two components A and B of a gas mixture are 24 and 28 respectively. The…

A: According to the question we have two components A and B. The information about the two components…

Q: HYBRIDIZATIONS & BOND COMPOSITION H-C=C 0: Ё-н

A: Please find the attachment.

Q: use the tabulated half-cell potentials to calculate G for the following balanced redox reaction 3…

A: Recall the given redox reaction,                      3 I2 s  +  2 Fe s  →  2 Fe3+ aq  +  6 I-…

Q: 15) The positively polarized carbon atom of a carbonyl group acts as: A) an electrophile and a Lewis…

A: we have to identify the correct statement for the carbon atom of carbonyl group

Q: 10) Which of the following statement(s) is (are) true for an IR-active bond? A) The bond is…

A: We have to select the true statement for an IR active bond

Q: Determine the oxidation number of the following elements or underlined elements in compounds and…

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Q: If an increase in pressure increases the amount of ammonia, suggest why chemists only use a moderate…

A: Haber's process of ammonia synthesis

Q: The rate law for the reaction 3A → C is as follows: Rate = 4,36 x 10–2 [A]2. What is the half-life…

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Q: Arrange the ketones in order of increasing reactivity toward nucleophilic addition H3C (I) O(least…

A: Reactivity of ketones towards nucleophilic addition

Q: Draw the curved arrow mechanism for the following transformation. HO -OH [H*] من + H2O

A: The given reaction is a dehydration reaction in which water removes as one of the products. The…

Q: Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on…

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Q: What is the percent yield for this reaction under the given conditions? Express your answer to three…

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Q: What is one quantitative fact about the element of Sulfur with proper significant digits and units?

A: Please find your solution below : An element in chemistry is defined as a substance which cannot be…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.