Chemistry Question

Q: 84.0 g Ta to mol

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: In a titration experiment, how does the error in the standardization of NaOH affect the accuracy in…

A: The error in the standardization of NaOH leads to error in the determination of the concentration…

Q: Use the References to access important values if needed for this question. The compound methanol,…

A: Given, Reaction : 2CH4O(I) +3O2(g) →2 CO2(g) +4H2O(g)

Q: please answer D.

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Q: In the second solution is that suppose to be 0.203 or 0.283

A: We have to clarify the answer of the second solution is  0.203 or 0.283.

Q: A student starts the recrystallization of benzoic acid experiment with 0.592 g of crude material.…

A: In the recrystallization process, an impure sample of a compound is dissolved in a hot solvent and…

Q: Can the mirror image of bromochloromethane (CH2BrCl) be superimposed on the original? (chirality)

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Q: 8. A first-order reaction is performed twice at two different temperatures. The first run was…

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Q: Consider a first order decomposition reaction of A with t₁/2 = 140.0 seconds. If the initial…

A: We have to calculate the final concentration of A

Q: Enter a balanced chemical equation for each of the following. Aqueous hydrochloric acid reacts with…

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Q: 1. Find the full name for each of the following acronyms: (a) IEEE, (b) IET, (c) MTT-S, (d) AP-S,…

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Q: Given the Data: Mass of empty 6" test tube: 15.279g Mass of test tube + cyclohexane: 24.843g Mass…

A: Molality: "Total moles of such a solute contained in a kilogram of a solvent" is the definition of…

Q: The laser beam used for LASIK eye surgery has a wavelength of 193 nm. Calculate the frequency of…

A: Given -> Wavelength= 193 nm = 193 × 10-9 m  Energy of pulse = 1.0 mJ = 1.0 × 10-3 J (1mJ = 10-3J)…

Q: A. Isomer A has only primary

A: Organic compounds are made up of hydrogen and carbon atom. These organic compounds are called…

Q: Among CH₃CH₂CH₂NH₂, N(CH₃)₃, CH₃CH₂CH₂CH₂CH₂NH₂, which will have the highest heat of vaporization?

A: Heat of vaporization is the amount of heat that must be added to a liquid so that it can be…

Q: Part 5. Acid-Base Reactions. For the following acid-base reaction perform the following: - Draw the…

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Q: Magnesium oxide can be made by heating magnesium metal in the presence of oxygen. The balanced…

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Q: What is the pH of 2.2 x 10-3 M HC1?

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Q: Does CHBrClF contain a plane of symmetry? is it chiral and does it contain a stereocentre

A: Chiral carbon: The sp3 hybridized carbon atom that is attached to the four different types of atoms…

Q: For the reaction shown, calculate how many moles of each product form when the given amount of each…

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Q: When 7.0522 g of an unknown nonelectrolyte is dissolved in 150.45 g of water the freezing point is…

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Q: Briefly explain the techniques of catalyst characterization: c) FT-IR of solids with pyridine…

A: Infrared spectroscopy is a technique which deals with the analysis of a molecule when it reacts with…

Q: what is the chirality centeris an R or S absolute configuration?

A: A chiral center is defined as an atom in a molecule that is bonded to four different chemical…

Q: 6. A first-order reaction was found to have a half-life of 8 hours at a constant temperature. What…

A: The half-life of a first-order reaction does not depend on the initial concentration of the…

Q: 2 equiv. H₂NNH₂ оно H₂ of led mechanism for the above g curved arrows. NH₂

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Q: Part 2. Electron configurations. Match the noble gas core electron configuration to the element.…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: ethan-1-ol

A: Stereochemistry is branch of chemistry in which we deal with three dimensional arrangement of atoms…

Q: H3CO. ОН ет

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Q: You find a penny with a mass of 2.50 g and a volume of 0.266 cm3. Is this penny pure copper? (The…

A: Answer: Given data: m=2.50gV=0.266cm3dcopper=8.96g/cm3

Q: A mechanism for the gas phase reaction of fluorine with chlorine dioxide that is consistent with the…

A: Rate law of a reaction is given by the slowest step. The rate law of the reaction should not contain…

Q: Shown below is a possible synthesis of the target molecule, starting with a substrate containing two…

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Q: If 11.2 kg of Al₂O3(s), 56.4 kg of NaOH(1), and 56.4 kg of HF(g) react completely, how many…

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Q: Use this information to write a rate law for this reaction, and calculate the value of the rate…

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Q: A buffer solution is composed of 5.50 mol of acid and 2.75 mol of the conjugate base. If the pKa of…

A: pH of buffer solution is calculated by using Henderson Hasselbalch equation .buffer solution is…

Q: How did you come up with the (A-)/(HA) = 0.905

A: [A-]/[HA] = 0.905 pH = 4.66  pKa = 4.76

Q: For each of the following precipitation reactions, calculate how many grams of the first reactant…

A: Na2CO3(aq)+CuCl2(aq)→CuCO3(s)+2NaCl(aq) to g

Q: 8) a) Draw the structures of ethyl acetate, ethanol, 2-propanol and water. b) Based on the…

A: In this question mentioned four solvent , Ethyl acetate , ethanol , 2-propanol , and water. Firstly…

Q: Calculate the number of grams of sodium in 1.20 gg of each sodium-containing food additive.…

A: Given,             1.20 g of sodium benzoate, NaC7H5O2Required,                  The number of…

Q: Enter a balanced chemical equation for each of the following. Sulfur dioxide gas reacts with oxygen…

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Q: When 30.5g of calcium and 56.6 g of nitrogen gas undergo a reaction that has a 75.5% yield determine…

A: Here 30.5 g of Ca and 56.6 g N2 undergoes a reaction that has a 75.5 % yield of Ca3N2. We have to…

Q: Write and draw for Kekulé Structure and Condensed Structure Formula of the image below.

A: Kekule structure: A Lewis structure in which bonded electron pairs in covalent bonds are shown as…

Q: I: H₂S(aq) + Cl(aq) HCl(aq) + HS (aq) II: NH4 (aq) + HCO3(aq) H₂CO3(aq) + NH3(aq) A) Only I B) Only…

A: Given reactions are :  I : H2S (aq) + Cl- (aq) <--------> HCl (aq) + HS- (aq)  II. NH4+ (aq) +…

Q: The thermite reaction, Fe2O3 + Al → Al2O3 + Fe produces so much heat that the Fe product melts. a.…

A: a) Given :-  The given thermite reaction is Fe2O3 + Al → Al2O3 + Fe…

Q: What is the volume in liters of water that would be required to fill an aquarium that is 20.0 in…

A: Given: Length = 36.0 in Breadth = 20 in Height = 16.9 in

Q: importance of assessing the usability of electrode by using pH

A: Answer: The liquid inside the electrode usually has a pH of 7. Thus , if one measure the…

Q: Analyze a mechanism, including molecularities; write a net reaction; and identify any catalysts or…

A: Answer: Molecularity is related to step of the reaction while order of reaction is the power of…

Q: Determine the number of moles of H in each sample. 8.11 mol NH3 to mol

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Q: Learning Check Name each of the following: -CH₂ CH₂ CH₂ 5. Write three isomers of C6H14, and name…

A: Naming of following molecule.  And isomer of following molecule are as follow.

Q: 2) (thirdquestion).--The equilibrium concentration of magnesium ion in a saturated magnesium…

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Q: Which diagram correctly shows the Bohr model of a carbon atom in the ground 30 state? A. Diagram #1…

A: Bohr’s Atomic model: Postulates: The atom has a nucleus in the center of the atom where neutrons…