A chemist titrates 230.0 mL of a 0.3728 M dimethy;amine ((CH3)2NH) solution with 0.0645 M HCl solution at 25 C. Calculate the pH at equvalence. The pKb of dimethlamine is 3.27.  Rounc to 2 decimal places

Q: Example: Ammonia, NH3, can be synthesized by the reaction: 2 NO (g) + 5 H₂ (g) ->> 2 NH3 (g) + 2 H₂O…

A: Mass of NO = 86.3gMass of H2 = 25.6 g

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A: Molarity represents the number of moles of a solute present in 1000 mL of solution.So, the number of…

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A: Volume of sample (V1) = 150mμ" data-mce-style="display: inline; font-style: normal;…

Q: 22. What is an appropriate structure for a compound with molecular formula C7H₁4O2 that displays the…

A: Spectroscopy deals with the structural elucidation of unknown compound.

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Q: Which of the following is used to determine possible molecular formulas? A. Base peak OB m/z value…

A: Mass spectrometry is used to identify unknown substances and determine the possible molecular…

Q: Using the average atomic mass of carbon, calculate the mass (in amu) of 167 carbon atoms.

A: The average atomic mass of carbon is approximately 12.01 atomic mass units (amu).Here, we have to…

Q: 17. Which of the compounds shown is consistent with the 13C NMR spectrum given? 80 OH 70 60 НО. 50 x…

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Q: A researcher raises the temperature from 15.9 to 30.1 o C and finds that the rate of the reaction…

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Q: Which molecule answers this question (you are not looking for the "?" you are looking for the answer…

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Q: Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in…

A: Oxidation is a chemical process in which a substance loses electrons.Reduction  is a chemical…

Q: If more ammonia, NH3 is added to a buffer of ammonia-ammonium ion, is the solution still the buffer…

A: Buffer system consist of weak acid and its conjugate base or a weak base and its conjugate acid .In…

Q: Air is in a piston/cylinder setup at 2000 kPa pressure and 290 K temperature (see below figure). Air…

A: In this question we use first law of thermodynamics and definition of entropy change.Given - Presure…

Q: For any given solution, which colligative property tends to have the most impressive effects?…

A: Colligative properties are those which depends on the number of solute particles in a solution for…

Q: 3. What is the structure of a molecule with that has an integration of 6H, 2H, 1H, and 1H? A)…

A: Integration of molecule is 6H, 2H ,1H and 1H.

Q: For the unbalanced reaction below, calculate how many grams of potassium chloride form when 6.53 g…

A: KCIO3(s) ---> KCI(s) + O2(g)mass of potassium chlorate (KCIO3) reacts = 6.53 gmass of potassium…

Q: What is the total ionic equation and net ionic equation of AgNO3 + NaI --> NaNO3 + AgI

A: Given chemical equation is :  First write balanced molecular equation , then write phases of…

Q: Liquid gaseous oxygen gas gaseous water (H₂O). If 4.95 g of carbon dioxide is produced from the…

A: Actual yield of CO2 = 4.95 gmWeight of octane = 3.4 gm Weight of O2 = 7.6 gm

Q: For each of the species below, identify any cyclic conjugated system, then: A. Determine the number…

A: Given compounds are,

Q: Which of the following acids is the strongest? CH3CF₂COOH CH₂FCH₂COOH CH3CH₂COOH CHF₂CH₂COOH

A:

Q: Draw the organic product of this E1cb reaction. Ignore byproducts. HO OCH₂CH₂ NaOCHICH heat Drawing

A: Metal Alkoxide can abstracts a proton from alcohol. Metal Alkoxide will abstract the most acidic…

Q: What is the molarity of a solution prepared using the given amount of solute and total volume of…

A: The question is based on the concept of molarity. molarity is a method of expressing concentration…

Q: Consider the following reaction: CH4 + 202 --> 2H₂O + CO₂ How many moles of water can be formed from…

A: The given reaction : CH4 + 2O2  →  2H2O + CO2Number of moles of CH4 = 4.1 molesNumber of moles of…

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A: Weight of Fe sample = 37.2g Atomic mass of Fe = Atomic mass of S = Avogadro's Number =

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A: Ionic compounds are formed by cations and anions . Usually Cations are  metal and anions are non…

Q: O STOICHIOMETRY Using molarity to find solute mass and solution volume Calculate the volume in…

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Q: For the following molecule assign R or S to any chiral center if appropriate. Select the correct…

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Q: For the following molecule assign R or S to any chiral center if appropriate. Select the correct…

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Q: Physostigmine is used in the treatment of glaucoma. Within this structure, the atom indicated by is…

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Q: Calculate the boiling point of methanol CH3OH from the thermo data provided. The reaction is:…

A:

Q: A chemist prepares a solution of barium chloride (BaCl₂) by measuring out 18. g of barium chloride…

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Q: 20. Which compound with the molecular formula C-H₁0O fits the spectroscopic data given? IR: 1720…

A: Molecular formula of compound : IR : 1720 cm-1 1HNMR :   13CNMR : 15, 22 , 45, 210

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Q: 10. A compound with a molecular formula of C10H₁2O2 has the following 1H NMR spectrum. Which of the…

A: IR spectroscopy: Spectroscopic technique to identify the molecule which deals with infrared region…

Q: Plate F 1 2 3 4 5 6

A: This is a paper chromatography  Paper chromatography is a simple and widely used technique for…

Q: If a student has 100.0 mL of a 0.100 M solution of propanoic acid and 100.0 mL of a 0.0850 M…

A: It is based on the concept of buffer and it's pH.pH is defined as the negative logarithm of…

Q: 1.1 Provide IUPAC names of the following aromatic compounds: d) Br OH CI NH₂ CH3 f) CO₂H NO₂

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Q: Click on the "draw structure" button to launch the drawing utility. Draw the structure of the alkyl…

A:

Q: 73 mL of 0.896 M nitric acid is added to 83.6 mL of 1.403 M magnesium nitrate. What is the…

A: Molarity = moles of solute/volume of solution( in L)

Q: Calculate the solubility of PbCrO4 in water at 25 °C. You'll find K, data in the ALEKS Data tab. sp…

A: Given,The compound:  PbCrO4From the reference ALEKS Data tab:    Ksp of PbCrO4 = 2.8 x 10-13

Q: 11 An unknown compound A has the molecular formula C12H16O. Compound A absorbs strongly in the IR at…

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Q: e disp 11.11 Ammonia is both a donor and an acceptor of hydrogen in hydrogen-bond formation. Draw a…

A: Hydrides of group 15, 16 and 17 (i.e., NH3 , H2O , HF, HCl, etc.) have more electrons than required…

Q: 50

A: Given IR spectrum of unknown molecule.

Q: A 30.00 mL of 0.125 M NaOH solution is titrated with a standard 0.250 M HCL solution. Calculate the…

A: Here both given acids and base are strong . So M1V1 = M2V2

Q: if AHF = -234 kJ/mole for ethanol (CH3CH₂OH). OH and AH = -171 kJ/mole for acetaldehyde (CH3C(H)=0).…

A: Enthalpy of reaction = Sum of enthalpies of formation of products - Sum of enthalpies of formation…

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A: To check the strength of an acid, generally follows ARIO rule. A means attached atom R means…

Q: how do i determine if the reaction 2HI(g) ---> H2(g) + I2(g) is first order or second order based on…

A: The order of reaction is to be determined.

Q: 13. Which compound has four distinct signals in its 3C NMR spectrum? لا بايد I II III IV Br >

A:

Q: Propose a detailed mechanism for the reaction below. HNO3 H₂SO4 NO₂

A: The nitration of benzene  is typically carried out in the presence of a mixture of concentrated…