The number 39.00671 rounded to 3 significant figures is: The number 801.0013 rounded to 5 significant figures is: The number 5183.340 rounded to 3 significant figures is:

Q: give the structural formula for compounds D to G

A: Benzene on reaction with succinic acid in the presence of Aluminium chloride produces a compound…

Q: Ammonia is a weak base with a ?b of 1.8×10−5. Calculate the initial molar concentration of a…

A: Answer:-This question is answered by using the simple concept of calculation of concentration of…

Q: A student runs two experiments with a constant-volume "bomb" calorimeter containing 1400. g of water…

A: To determine whether the reaction has been exothermic or endothermic, the heat absorbed or released…

Q: A 80.00 g mixture of methane (CH4) and propane (C3H8) reacts with excess oxygen to make carbon…

A: Answer:-This question is answered by using the simple concept of stoichiometry for the chemical tea…

Q: How much heat is required to raise the temperature of 16.1 g of water from -25 °C to 175 °C? heat:…

A: Approximately 13,412.48 Joules of heat are required to raise the temperature of 16.1 g of water from…

Q: Question: Research and describe some technologies that are used to protect metals against corrosion…

A: There are several technologies commonly used to protect metals against corrosion. Here are four…

Q: f a buffer solution is 0.110 M in a weak acid (K₂ = 6.1 × 10-5) and 0.410 M in its conjugate base,…

A: Suppose weak acid is HA [HA] = 0.110 M[A-] = 0.410 MKa = 6.1 × 10-5

Q: 15. Did the reaction occur by SN1, SN2, E1, E2, or none of the above? Br a) SN1 b) SN2 c) El d) E2…

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Q: 1B. Digitally illustrate the mechanism for the Fischer esterification reaction of butanoic acid and…

A: The mechanism is as follows (considering to happen under acidic medium) The mechanism for the…

Q: Specify which of the following are oxidation-reduction reactions, and if it is, identify the…

A: To solve this problem we have to know about oxidation and reduction .Oxidation means increased in…

Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product…

A: We have to draw the curved arrow pushing mechanism of the given reaction.

Q: A 9.00 L tank at 27. °C is filled with 5.07 g of dinitrogen difluoride gas and 3.97 g of sulfur…

A: Ideal gas equation: PV = nRT P = pressure, V = volume , n = moles, R = gas constantT =…

Q: A chemist measures the enthalpy change AH during the following reaction: 2 Al(OH)3(s)→ Al₂O3(s) + 3…

A: In the given question we have to calculate the change in enthalpy of the given reaction,  Enthalpy…

Q: C. Draw Lewis Structures and Predict Shape and Polarity of Molecules Compound No. of Valence e Lewis…

A: The given compounds are 1.NH32.H2O The following are the Lewis structure of both

Q: On a separate sheet of paper, draw the two alternative chair conformations for the product formed by…

A: IntroductionThe product formed by the addition of bromine to 4-tert-butylcyclohexene and calculating…

Q: (n) H₂N Loe/NaⒸ warm then, dil H₂O work-up

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Be sure to answer all parts. Ammonia has a Kp of 1.8 × 105. Find [H3O+], [OH¯ ], pH, and pOH for a…

A: Given,The concentration of Ammonia Solution= 0.550 M

Q: Which is CORRECT about SN₁ reaction? a. Nucleophile is not involved in the rate determining step. b.…

A: We have to find out the correct statement about SN1 reaction.

Q: Kinetic assays were performed to better understand the activity of the enzyme 245C in the absense…

A: The kinetic data is given for enzyme-substrate reaction in the absence and presence of a molecule B.

Q: 10) Write an equation for the reaction of n-propyl magnesium chloride and butanal (Not 3-…

A: The given reaction involve the nucleophilic addition of Grignard reagent (n-propyl magnesium…

Q: A neutral object is sketched below, in black and white. There are positive and negative electric…

A:

Q: In the space below, enter the letter for the correct answer (not case sensitive). PhOCH2CH2CH3 is…

A: 1. The given molecule has 1 chiral center in the reaction that take place is in aqueous medium which…

Q: What concentration of acetate ions is found in a 9.11 M solution of Ca(C2H3O2)2?

A: Given , concentration of Calcium acetate, Ca(C₂H₃O₂)₂ = 9.11 MConcentration of acetate ion , C2H3O2-…

Q: What functional group below gives IR signals at 1700 cm¹ and 2510-3000 cm ¹7 O Ketone O Amide…

A: IR peaks at 1700 cm-1 and 2510-3000 cm-1

Q: What mass of Na2CrO4 is required to precipitate all of the silver ions from 65.0 mL of a 0.800 M…

A:

Q: Write the balanced formula, complete ionic, and net ionic equations for each of the following…

A: A balanced chemical equation is one that contains equal atoms of each element on both sides of the…

Q: hydrog Determine the % optical purity for phenyl succinic acid. The weight of PSA is 0.25 g and the…

A: Weight of acid = 0.25 gVolume of solvent = 10mLObserved rotation = +3.90°Cell length = 1 dm[]max =…

Q: What would you multiply "grams of zinc" by to get the units "atoms of zinc"? DC )( g Zn (number)…

A:

Q: 14 When you completed the reactions? H₂N- -NH₂ -NH₂ the following reactions. Which compounds cannot…

A:

Q: Assuming complete dissociation, what is the pH of a 4.99 mg/L Ba(OH)2 solution?

A: Concentration of Ba(OH)2 solution = 4.99 mg/LpH of the solution = ?Note: Molar mass of Ba(OH)2 =…

Q: Is there no arrow to indicate where equilibrium shifts to in 3

A: As you asked part 3 we can assign the arrow based on the basis of reactants.

Q: Draw the mecanisms of this structure.

A: We have to propose the mechanism for the given transformation.

Q: calculate the pH of a 3.8 M solution of aniline (Ka (aniline salt) = 2.33 x 10-5)

A:

Q: Explain why boron (B) has a higher ionization energy than fluorine (F).

A: Ionization energy represents the amount of energy needed to remove an electron from the outermost…

Q: ou need to prepare 100.0 mL of a pH 4.00 buffer solution using 0.100 M benzoic acid (pKa = 4.20) and…

A:

Q: 3B. Identify the reagents/compounds needed to complete the following synthesis by the Friedel Crafts…

A: Friedel craft alkylation reaction :- When benzene is treated with an alkyl halide in presence of…

Q: What is reflux?

A: Refluxing is a widely used technique in organic chemistry to maintain a constant temperature…

Q: Calculate the [H+] and pH of a 0.0035 M nitrous acid solution. The ?a of nitrous acid is 7.10×10−4.…

A:

Q: which side are the following equilibria shifted? (Draw the appropriate arrows and state reasons):…

A: According to Lechatleier principle " If the chemical reaction experience a change in its…

Q: What happens when the codeine molecule (C18H21NO3) is exposed to air? What reactions are obtained

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Q: Which of the following correctly represents the electron affinity of bromine? O Br(g)→Br+ (g) + e¯ O…

A: We need to tell among the given options which one correctly represents the electron affinity of…

Q: ach sketch below shows three objects with an electric charge. In each case, decide whether there is…

A: Electric charge can be positive or negative. In chemistry, electrons carry the negative charge while…

Q: How could melting point be used to determine if a compound is the same or different if the melting…

A: The melting point of a compound can provide valuable information about its identity and purity. When…

Q: Draw the product of the reaction shown below. Ignore inorganic byproducts. > + NaH DMSO OH CI Q Q

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Q: Give an following a) b) c) d) account of mechanism and product of reactions: + CH₂ Buli/DME 1) ELOK…

A:

Q: At 373 K, Kp = 1.47*108 for the reaction O2(g) + Cl2(g) COCl2(g). Equal moles of CO and Cl2 are…

A: he pressure that is exerted by one among the mixture of gases if it occupies the same volume on its…

Q: The ?a of a weak monoprotic acid is 2.32×10−5. What is the pH of a 0.0787 M solution of this acid?

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Q: Tube B Maps CI Question 17 of 21 Identify which of following alkyl halides is most likely to undergo…

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Q: 14. Certain compounds are known to “dimerize” in solution – this means that the intermolecular…

A: The depression in freezing point is given by  ΔTf = i * Kf * molality where ΔTf = depression in…

Q: how to draw cis-2,3-dichloro-2,3-epoxypentane

A:

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.