hat is the purpose y the result of Spectrophotometric of a Cobalt Chloride Solution Analysis?

Q: 3. A solution is prepared by mixing 1.00 mmol of a weak acid (HA, pK2 = 6.44) with an unknown amount...

A: To find the total absorbance, A of a solution containing weak acid, HA and its conjugate base, A-, t...

Q: 2. Below is the structure of a newly approved anticancer drug Nubequa. N. NH a. How many stereogenic...

A: Stereogenic center :- The center in molecule (carbon atom) which gives different stereoisomers on th...

Q: If we would like to make a 1 L buffer solution with 0.1 M concentration with a pH value of 7.0 using...

A:    Buffer concentration = 0.1 M                        Volume = 1 L Required pH of Buffer = 7.0     ...

Q: The rate constant k for a certain reaction is measured at two different temperatures: temperature k ...

A: given,       temperature             k     117.0 0C      4.3 *  107     -24.0 0C      1.9 * 1...

Q: HNO3 + KOH – KNO3 + H20 AH = - 57 Exothermic

A: As □H of reaction is negative, then reaction is Exothermic while when □H is positive,  then reaction...

Q: For the following five reactions: (i) Cl− + AlCl3 → AlCl4− (ii) (CH3)3N + HCl → (CH3)3NHCl (iii) OH...

A: The reactions given are, (i) Cl− + AlCl3 → AlCl4−(ii) (CH3)3N + HCl → (CH3)3NHCl(iii) OH− + H3O+ → 2...

Q: 11) Which of the following is an isoelectronic series? A) 02-, F, Ne, Na+ B) S, a, Ar, K E) Si2-, P2...

A:

Q: The first line in the pure rotational spectrum of 1H35Cl appears at 21.18 cm-1. Find the value of th...

A: First line in the pure rotational spectrum of 1H35Cl = 21.18 cm-1  Atomic mass of D (deuterium) = 2....

Q: What's the purpose of an insecticide?

A:      

Q: er first ionization energies?

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Q: Propose a structure(s) for the product(s) of the following reactions. H2SO4, HNO3

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Q: 2. A precipitate of Pbl, is formed when 5 mL of 0.012 M Pb(NO,), is added to 5 mL of0.030 M KI. It w...

A: Concentration of lead nitrate = 0.012M Volume of lead nitrate = 5mL  

Q: Draw the structure of 2,3-dimethyl-1-butene. • Show stereochemistry only if given in the name. • You...

A: The chemical structure of 2,3-dimethyl-1-butene. It has no stereochemistry.

Q: 5. Draw the reaction schemes for the following reactions: a. The sulfonation of benzene b. The halog...

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Q: As much as 8 grams of NaOH (Mr = 40) is dissolved in water until the volume of the solution becomes ...

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Q: water can react with carbon dioxide to form hydrogen carbonate according to the following chemical e...

A: Given,   mass of H2O = 421 g  volume = 42.5 L temperature = 30.50 C.

Q: A fish company delivers 22 kg of salmon, 05.5 g of crab, and 300.48 mg of oysters to  your seafood r...

A: given, A fish company delivers 22 kg of salmon, 05.5 g of crab, and 300.48 mg of oysters to your sea...

Q: P2.15 Assume that a system has a very large number of energy levels given by the formula EL = €ol? w...

A: Given, ξl=ξ0l2where,ξ0=1.25×10-22J Degeneracy level , gi=2l 

Q: 4. Terpenes are substances derived from active isoprene or isopropyl pyrophosphate, they are the mai...

A:

Q: COH OH COCH3 What would be the product if NaBH4 was used?

A: Sodium borohydride, NaBH4 is a reducing agent and it can selectively reduce a carbonyl functional in...

Q: What mass in grams Express your answer with the appropriate units. Toluene (C;Hs) and nitric acid (H...

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Q: Which is the better nucleophile, A or B?

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Q: A second order reaction has a half-life of 132.1 min. When the initial concentration of L is 0.00185...

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Q: H3C CH2

A: Nucleophilic site is the site which acts as a nucleophile i.e. electron rich and can donate electron...

Q: A lab pair’s Beer’s Law calibration graph 0.08 < A < 0.79 had a best-fit line of A = 0.013 C – 0.023...

A: Equation of Given curve ., A = 0.013 C – 0.023 And  solution #1 is (10.00 mL stock diluted to 25.00 ...

Q: Which of the following molecules have tetrahedral molecular geometry? Support your answer by showing...

A: Given molecule : IF4-

Q: What are the atomic term symbols for an electronic configuration of s2p?

A: Electronic configuration of an atom describes the arrangement of electrons in orbitals of an atom.

Q: grams

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Q: Predict the shape (molecular geometry) of the following molecules or ions by filling up the table be...

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Q: a gas mixture contains sulfur hexaflouride at a pressure of 2.64 atms and diphosphorus pentoxide at ...

A: given, A gas mixture contains sulfur hexafluoride at a pressure of 2.64 atm and diphosphorus pentoxi...

Q: Calculate the density of air at atmospheric pressure at sea level and at 15°C, and at a pressure of ...

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Q: 1) The number with the most significant zeros is A) 250000001 B) 0.00002510 C) 2.5100000 D) 0.025000...

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Q: Consider the following reaction: 2 03(9) -> 3 02(g) (*) In a container with O3 only at the beginning...

A: The rate of the formation of the product or the rate of disappearance of the reactants is known as t...

Q: Complete the sentence with the correct phrase. In case that chemicals come in contact with your skin...

A: In case that chemical comes in contact with your skin 

Q: drug for a month. The drug is available in 10.0 mg/pill . How many grams per week

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Q: Write the balanced chemical equation for the reaction shown. Make sure you place the central atom in...

A: Reaction contains N,Cl,C and H atom. Reaction :-  N2Cl4 + CH4  --------&gt;  CCl4 + H2 + N2

Q: For the reaction below, Kc = 10.0 A (aq) + 2B (aq) ⇌ 2C (aq) What is the equilibrium constant Kc for...

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Q: coplanar unit in CO

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Q: The reaction C,H, (g) → 2C,H,(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate consta...

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Q: Write structural formulas for toluene (C6H5CH3) and for benzoic acid (C6H5CO2H) (a) as resonance hyb...

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Q: What are the aspects of Leucippus and Democritus idea of atomism?

A: Since you have multiple questions, we will answer only first question for you. In order to get other...

Q: Can you answer question number 1?

A: Sigma bond formed by axial overlapping of atomic orbitals and pi bond is formed by lateral overlappi...

Q: Direction Using the phase diagram (shown below) for water, determine the state of H2O at the followi...

A: The triple point of the phase diagram gives information that all three phases (solid, liquid and gas...

Q: In each of the following molecules 1-6, identify the relation between the circled hydrogen atoms as ...

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Q: When 20 g. of Aluminium is heated from 90oC to 115oC, 105 calories is required. What is the molar he...

A: The molar heat capacity of aluminium is 5.6658 cal/mol°C.

Q: Why do you need to lower the heat of your stove when the meat you are cooking is not yet tender and ...

A: A question based on general chemistry that is to be accomplished.

Q: Choose the correct statement (N particles, M states). The answer is apperently not D. a. Unlim...

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Q: Br 10 Br

A:

Q: Consider the following reactions: A B AGn 3 kJ/mol C- B AGrn = 37.3 kJ/mol !3! What is the value of ...

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Q: D) C-H 16) The ground-state electron configuration of the element E)N-H is [Kr]5s14d5. A) Nb B) Te D...

A: qn:16 The atomic number of Mo is 42. the electronic configuration can be written as- 1s22s22p63s23p6...