Question: How can we determine the concentration of a substance in a mixture using spectrophotometry?

Q: Calculate the pH of the solution resulting from the addition of 95 mL of 0.48 M HCl to 49 mL of 0.31…

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Q: You suspect that your unknown contains halogen so you perform the silver nitrate in ethanol test and…

A: The silver nitrate in ethanol test and the sodium iodide in acetone test are used to detect the…

Q: 12). What is the major product of the following reaction? ОНС. HO-H₂C ОНС. (A) NO₂ SnCl2, then H3O+…

A: 3-nitro benzaldehyde on reduction with SnCl2 (Then H3O^+) gives 3-amino benzaldehyde.

Q: Answer the questions in the table below about the shape of the sulfur dioxide (SO₂) molecule How…

A: Electron group or lone pair are the valence electrons which are not involved in bonding between…

Q: Name the following organic compounds: CH3 | CH | CH3 - compound CH- | CH₂ - CH₂ - CH3 I CH₂ - CH₂ -…

A: Since,Rule of IUPAC-1) Longest chain as parent chain.2) Numbering start from those side where more…

Q: If you wish to extract aqueous acetic acid into hexane, is it more effective to adjust the aqueous…

A: Extraction of organic molecules is a separation technique used to separate a desired organic…

Q: 3). What is the major product of the following intramolecular Aldol reaction? H₂C (A) C) OH CH₂ CH₂…

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Q: Question 6 PIO What is the mechanism of the following reaction? H₂N-Enzyme LOH H₂O PIO N-Enzyme LOH

A: The question discusses about the reaction between aldehyde and primary amine to give corresponding…

Q: T (°C) 30- 20- 10 0- -10- -20- A B C D heat added E

A: In the given plot , temperature is taken on Y axis and heat added is taken on X axis. The phase…

Q: Below is the Lewis structure of the nitrogen (N₂) molecule. :N:::N: Count the number of bonding…

A: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simplified…

Q: D D Question 4 Match HNO3 HF CH3CH2CH2COOH KOH NH3 Question 5 Match ✓ [Choose] oxyacid h neutral…

A: 1) HNO3 is oxyacid (nitric acid)Any oxygen containing acid is oxyacid. 2) HF is binary acid. (Binary…

Q: Set up a cell that has a Mg electrode in a 1.0 M aqueous Mg2+ solution on the left side and a Cu…

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Q: + NBS ∙Br Mg, ether CO2 9. Determine whether the following reactions are flawed. Put "Yes" on the…

A: Here we have to determine the following reactions are flawed or not- The following reactions are…

Q: A 25.0-mL sample of 0.200 M KOH is titrated with 0.100 M HNO3. Calculate the pH of the solution…

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Q: Which of the following is pyridine? Син N-H A O A OD B B N C N-H D -NH₂

A: The cyclic organic compounds which contain heteroatoms like N,O an S in ring by substituting general…

Q: The image of an amino acid is shown below with letters, A-D representing the four parts of an amino…

A: The question is based on the concept of amino acids. we need to explain the amino acid and its…

Q: What quantity in moles of HCI need to be added to 200.0 mL of a 0.200 M solution of NaF to make a…

A: moles of HCl added to prepare the buffer solution

Q: Which compound will form yellow sulphur S when it is heated?   a. K2SO4   b. KHSO3   c. K2SO3…

A: Thermal decomposition is a chemical reaction that involves the breaking down of a substance into…

Q: What mass in grams of the dihydrate H2C2O4 • 2 H2O (molar mass = 126.0 g/mol) is needed in order to…

A: The dihydrate H2C2O4 • 2 H2O losses two equivalent of water molecules to form H2C2O4  in the…

Q: A 50.0 mL sample of 0.0732 M AgNO3(aq) is added to 50.0 mL of 0.100 M NalOylog). Calculate the [Ag"]…

A: We have to calculate Ag+

Q: QUESTION 8 The following series of reactants will produce the shown product. لملا True False 1.…

A: Organic reagents are chemical compounds that undergo functional group transformation.

Q: S Ox to

A: Elimination reaction is classified into E1, E2 and E1CB categories.  If leaving group is good then…

Q: Isooctane, an important constituent of gasoline, has a boiling point of 99.3 °C and a heat of…

A: When a liquid changes into gas at its boiling point the entropy of the system increases. The entropy…

Q: How can we predict the properties of a substance based on its molecular structure?

A: We can predict the properties of a substance based on its molecular structure using the principles…

Q: 12:27 Which of the following guarantees a reaction will be spontaneous? A) AH > 0 B) AS (sys) > 0 C)…

A: A spontaneous reaction is a reaction that occurs naturally under certain conditions without the need…

Q: A. B. Which of the following compounds would react with Tollens solution? CH3-(CH2)2-C-CH3 O C. O…

A: A solution of silver nitrate, ammonia, and some sodium hydroxide is known as a Tollens reagent. The…

Q: 180.0 mL of 0.12 M C₂H5NH₂ with 285.0 mL of 0.22 M C₂H5NH3Cl

A: Answer: Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: Which of the atoms listed below has the SMALLEST effective nuclear charge? Rb   Sn    As    Br

A: Effective nuclear charge is the net positive charge experienced by an electron in a multi-electron…

Q: Which of the following is true for a reaction when AG is a positive value? A) The reverse of the…

A: Free energy change of a reaction tells about spontaneity of  a reaction.  If ΔG<0 then this…

Q: A Fe Fe²+ || Cd2|Cd galvanic cell is constructed in which the standard cell voltage is 3.70-102 V.…

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Q: H₂N 04 Name using IUPAL more tha 1 can be selectedd A) Ortho-Paracyclopentanon. B) - phryl…

A: In compound 1 there is cyclopentanol as a parent and at position 2 there is phenyl (-C6H5) group.…

Q: the potetial of the sell Ag/AgI(s)//AgI(aq)/Ag is +0.9509 at 25 degree Celsius. Calculate (i) the…

A: E0 Ag/AgI(s)//AgI (aq)/Ag = +0.9509 Temperature = 25 0Celsius

Q: to es and a redox Part B In the process of oxidizing I to I2, SO4²- is reduced to SO₂. How many…

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Q: 10. [3+2] Draw the two regioisomers that would result from the [3+2] cycloaddition reaction below.…

A: The cyclization of molecule through the rearrangement of π electrons of two different molecules…

Q: Why do peaks with long retention times become wider in gas and liquid chromatography? Which tends to…

A: Chromatography is a widely used analytical technique for separating and identifying components in a…

Q: Consider the mechanism below that is proposed for the reaction of methane with molecular chlorine.…

A: Chain reaction:  It is the sequence of reactions where a reactive product or by-product causes…

Q: Levofloxacin is a broad spectrum antibotic. It is reported that it is completely removed in an…

A: t1/2 = 7 h  Dose= 625 mg/Kg  1 kg requires => 625 mg.  Than, 80 kg requires=> 625 × 80…

Q: 39. An enclosed mixture has a mass of 12.69723±0.00003 g, and after a chemical change occurs the…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Calculate the standard enthalpy of reaction for the following reaction using the appropriate…

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Q: Identify the reagent(s) that can be used to achieve the following transformation: Step A: Step B:…

A: This problem is based on basic organic transformations

Q: Suggest reagents with mechanistic justification for the following transformation NH₂

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Q: 21.31 Propose an efficient synthesis for each of the following compounds using an acetoacetic ester…

A: we have to write the synthesis of the given compounds using acetoacetic ester synthesis

Q: What is the value of the equilibrium constant at 300.0 °C for the following reaction?      H2 (g)…

A: Data

Q: Given AH° = -19.4 kJ/mol and AS° = +92.3 J/mol K, determine AG for the phase change CO₂(g) → CO₂(aq)…

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Q: Would this product mixture be optically active? What is the chirality?

A: We have find out the structure.

Q: What is the net ionic equation for 2NaOH+H2SO4>Na2SO4+2H2O

A: Steps to write a net ionic equation and complete ionic equation for a molecular reaction :…

Q: 20. Equilibrium is the state in which a. The rate of the forward reaction is greater than the…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Convert 150 K to °C

A: Since, We know that, K = (273+°C) then, °C = K-273

Q: A 0.2000M solution of hydroflouric acid is only partially ionized. Using measurements of the pH of…

A: The question is based on the concept of pH of the solution.  it is defined as a negative logarithm…

Q: What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 x 10-4) and 0.200 mol of NaF to…

A: Volume of buffer solution = 1.0 L  Moles of HF = 0.300 mol  Moles of NaF = 0.200 mol  Moles of HCl…