1. What is the retention time of molecule 9? 2. What happens to the peak area if the sample amount is doubled? 3. If run time is stopped at 5.5 mins, will molecules 8 & 6 be separated and quantified?

Q: 2Tritium H-3 has a half-life of 12.3 years. If a sample of 3 g of H-3 is produced, what will be the…

A: Half life (t1/2) = 12.3 years Initial amount (N0) = 3 g  Let, the mass of tritium remaining after…

Q: What happens when methane burns in the presence of oxygen to form carbon dioxide and water? H₂O 0₂…

A: Methane is a hydrocarbon compound. In the presence of excess oxygen, it burns to produce carbon…

Q: Describes how the Covid-19 virus can spread rapidly in an aircraft cabin using appropriate gas laws.

A: The COVID-19 pandemic is one of the most significant worldwide health and financial crises in modern…

Q: Overall question: What is the molality of a 3.25 M aqueous solution of ethanol, C2H5OH? The density…

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Q: Place the following compounds in order of decreasing standard molar entropy Group of answer choices…

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Q: Consider the reaction below. Which species is(are) the Brønsted-Lowry base(s)? HCO₃⁻ (aq) + F⁻ (aq)…

A: In this question, we will see that which species are Bronsted-Lowry bases. Those bases which…

Q: Urea, (NH₂)2CO is used as a fertilizer. What is the molar concentration & percent concentration by…

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Q: 3. Consider the HCN-KCN buffer system, which species would react if a dilute aqueous HBr solution…

A: In this question, we will see that which species in the buffer solution reacted with the HBr. This…

Q: n of metal ions increases ty? Electrolysis time Metal ion charge Electrolysis current mly anly d II…

A: The mass deposited at electrodes is determined by Faraday's law.  And mass deposited is directly…

Q: Draw the resonance structure of the following intermediates in the nitration of phenol: OH =

A: The Resonance  structure  are as follows.

Q: 4. Write the product and the mechanism for reaction. Write the names of starting material and…

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Q: 9. Given that Agl would precipitate first than AgCl in a solution containing equimolar…

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Q: 4Sº (J/mol.K) CH3CO₂H (1) 159.8 CO₂(g) 213.8 CH₂(g) 186.2 Calculate ΔΗ kJ rxn (round to 3 sig figs)…

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Q: 4. Calculate the equilibrium concentrations of hydrogen & and iodine that result when 0.050mol HI is…

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Q: 7. Addition of barium chloride to a saturated solution of barium hydroxide causes a/an in mass of…

A: A saturated solution is the solution which contains maximum amount of solute i.e barium hydroxide.

Q: Decrease the solution volume slowly until the word Saturated! appears and only one crystal is seen.…

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Q: a forensic toxicologist, you have been given a task on determining amount of cadmium, mercury,…

A: The concept of flame and electro thermal atomic absorption spectroscopy is given as follows-

Q: Sodium chloride is added to water (at 25 °C) until it is saturated. Calculate the concentration of…

A: The balanced equation for the dissociation of NaCl(s) in water is: NaCl(s) ⇌ Na+(aq) + Cl-(aq) ; Ksp…

Q: At 165°C, solid bismuth chloride reacts with 0.0417 mol of steam to form the solid bismuth…

A: The equilibrium reaction at 165 oC is: BiCl3(s) + H2O(g) ⇌ BiOCl(s) + 2HCl(g) ; K = ??  moles of…

Q: Write the product and the mechanism for reaction. Write the names of starting material product…

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Q: 14. Give the products of the combustion reaction of cyclohexane and balance the equation. + 0₂

A: Combustion reaction of hydrocarbons is the reaction of hydrocarbons in sufficient amount of oxygen…

Q: What is the pH of a solution that has an [OH⁻] of 7.3 × 10⁻⁹ M? Write your answer to 2 decimal…

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Q: 12. 13. • . 17 protons |||| ● I || H ● Li .Be. B. Na Mg. AI Si : Ar .. K .Ca. • Ga Ge . As Se : Kr…

A: For question 12, we have to find the elements that will form a bond. For question 13, we have to…

Q: 3. Lauryl alcohol is obtained from coconut oil and is used to make detergents. A solution of 5.00g…

A: Given, mass of Lauryl alcohol = 5.00 g Mass of benzene solvent = 100. g = 0.1 kg Boiling point of…

Q: 11. Draw all the conformations for the rotation about C2- C3 bond 2,3-dimethylbutane using Newman…

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Q: TASK 2: BALANCING! Balance the following redox reactions by the oxidation number method and…

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Q: Transcription : synthesis of mRNA from DNA True False

A: Transcription: Synthesis of mRNA from DNA = True

Q: Strontium-89 chloride is in a class of drugs known as radioisotopes. It delivers radiation to cancer…

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Q: 15. For the molecules:2,2-dimethylhexane, and octane. Which of the 2,3,4-trimethylpentane following…

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Q: Amino acid metabolism differs from that of carbohydrates and Fats in that " (a) There is no storage…

A: Amino acid metabolism differs from that of carbohydrates and fats in that = (a) There is no storage…

Q: A student is surprised by her work. She feels that the nuclear binding energy is high for oxygen-16.…

A: According to Einstein's equation,                           Binding energy E = mc2   ------…

Q: 2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X.…

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Q: Suppose a current of 690 mA is passed through an electroplating cell with an aqueous solution of…

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Q: MULTIPLE CHOICE Question 9 Given the redox reaction, 2Fe +3Zn +2Fe + 32n2, where is the transfer of…

A: The correct answer is given below

Q: SOLUBILITY PRODUCT PRINCIPLE Calcium phosphate (Ca3(PO4)2; MM = 310.18 g/mol), a large component of…

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: Draw the skeletal structure of the following organic molecules. (i) 4-chloropentanal (ii)…

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Q: Which of the following conversions are correct? Select all that apply. Question options:     8.64…

A: we have to select the correct conversions

Q: OH OH 0₂ OH Which reaction below is likely coupled to the above reaction? ATP --> ADP ADP --> ATP…

A: The reactant is lactic acid and the product is pyruvic acid.

Q: For Carbon B (CB) and nitrogen (N), draw orbital energy diagrams showing the orbitals involved in…

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Q: Anion and cation chromatography can be achieved by modifying?   A. Type of dye B. Mobile phase C.…

A: Chromatography is a technique for the separation of a mixture into its components.

Q: @ D 0 F2 For which of the following processes AS is positive? O CH4(8) + H₂O(g) → CO(g) + 3 H₂(8) O…

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Q: 2. A water tank contains 7.50 x 10³g water. Will the addition of 1.20 x 10³g ethylene glycol…

A: Weight of water = 7.50 ×103g = 7.50 Kg Weight of ethylene glycol added = 1.20 ×103g =1.20Kg Molar…

Q: What volume (in mL) of 0.2400 M HBr is required to neutralize 60.00 mL of 0.6000 M LiOH?

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Q: All inhibitors of eicosanoids act by inhibiting the cyclooxygenases * True False

A: The Eicosanoids are signaling molecules made by the enzymatic or non-enzymatic oxidation of…

Q: PLEASE ANSWER THE THREE QUESTIONS BELOW THANK YOU  1. Vinegar is a solution of acetic acid. What is…

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Q: The chloride in a sample is to be determined gravimetrically by precipitation and weighing AgCl.…

A: The chloride in a sample can be determined gravimetrically by precipitating it in the form of silver…

Q: Suppose a student performed a similar experiment using pentane and hexane as his gases. Pentane…

A: Given: The mass of pentane = 0.51 g The mass of hexane = 0.646 g The molar mass of pentane = 72.15…

Q: What is the pH of a 0.00205 M solution of NaOH?

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Q: Tritium H-3 has a half-life of 12.3 years. If a sample of 3 g of H-3 is produced, what will be the…

A: The correct answer is given below

Q: solubility of Ca(OH)2 (s) is equal to: 2+] H]/2 of the above One of the Above dition of barium…

A: Solubility equilibrium of Ca(OH)2 is Ca(OH)2(s) ---> Ca2+(aq.) + 2OH-(aq.) If solubility of…

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.