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Q: Many compounds are only partially dissociated into ions in aqueous solution. Trichloroacetic acid…

A: Trichloroacetic acid dissociates in water according to the equation---- CCl3CO2H (aq)↔H+(aq) +…

Q: Based the ionic convention, what is the formal charge of the PPh3 ligand? +2 QUESTION 41 What is the…

A: Formula for calculating formal charge ( Based on ionic convention) :  Formal charge, qF = nv - nnb-…

Q: = Module Knowledge Check The heat of vaporization AH, of carbon disulfide (CS₂) is 26.74 kJ/mol.…

A: Answer:- This question is answered by using the simple concept of calculation of entropy change.

Q: Suppose 1.27 g of sodium bromide is dissolved in 100 ml. of a 50.0 m M aqueous solution of silver…

A: The question is based on the concept of solutions. we need to calculate concentration of bromide…

Q: An electric field 000.0 V was used to accelerate a singly, positively-charged ion with a m/z of…

A: Mass spectroscopy - Mass spectroscopy is an analytical technique that measures the mass to charge…

Q: III. Propose a reasonable mechanism to explain the following reaction. III. Proponga un mecanismo…

A: The given reaction scheme is shown below We have to draw the mechanism of the reaction.

Q: The mass of one atom or molecule of a substance is given in atomic mass units, also called Daltons…

A: Mass of one atom / molecule of a substance is given in atomic mass unit which is also called Dalton.

Q: What is the amount of heat in kJ needed to boil water at 25°C, with a mass of 250 g to completely…

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Q: MULTIPLE CHOICE. Circle the best response for each. a) The highest charge density on as an ion Cs b)…

A: Answer:- This question is answered by using the simple concept of periodic trends in periodic table.

Q: Carbon dioxide gas is collected at 26.0 °C in an evacuated flask with a measured volume of 15.0 L.…

A: Temperature, T = 26.0 °C  Volume, V = 15.0 L  Pressure, P = 0.220 atm

Q: Please display on how to do the problem step by step: Combustion of 732 mg of an unknown organic…

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Q: What is the molecular geometry in the following structure for the atom label #2? H O bent C O…

A: we have to determine the molecular geometry of the atom labelled #2

Q: A. The Lewis diagram for H₂0 is: HO-H The electron-pair geometry around the O atom in H₂O is There…

A: Answer:- This question is answered by using the simple concept of determination of geometry of a…

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Q: Given the same reactant concentrations, the below reaction at 245. °C is 51.4 times as fast as the…

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Q: Soluble arsenic was discovered in river water at 5 parts per billion level (5 ppb). What is the…

A: The question is based on the concept of solutions. we need to calculate molarity of Arsenic…

Q: Valentina titrated the 50.00 mL of 0.30 M formic acid to the equivalence point with 37.5 mL of 0.40…

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Q: Consider these reactions: Reaction 1: H₂(g) + Cl₂ (g) Reaction 2: 20F2 (g) O2(g) +2 F2 (g) AH…

A: Given reaction

Q: Arrange these substance according to how quickly they would pour out of the containers, SLOWEST…

A: This question can be answered with the concept of viscosity

Q: When the compound below is treated with HCI, products D and E are formed. The reaction proceeds…

A: The question is based on organic reactions.     we need to identify the product formed and explain…

Q: Can u clarify what optically pure means

A: Hydroboration oxidation: Alkene is converted to alcohol. Anti-Markovnikoff product is obtained Both…

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, she fills…

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Q: Write the equation for the hydrolysis reaction of cellulose

A: The hydrolysis of  cellulose beta-D-glucopyranose unit Cellulose is a polymer in which glucose units…

Q: What is the major product of this reaction? H3CH₂CO H D. HO H HẠCH,CO H D. HO H HO H D H3CH₂CO D…

A: In the ring opening of epoxide in acidic medium involves the protonation, followes by the attack of…

Q: QUESTIONS 1) Calculate the final pH of 25 mL of the 0.1 M Tris-HCI / Tris buffer, pH = 7.20, after…

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Q: fictional compound AX2 has a molar mass of 152.01 g/mol and a Ksp of 5.6237e-10. It dissociates in…

A: The question is based on the concept of solubility product principle.  It that states that when a…

Q: QUESTION 30 What does the ratio A260/A280 tell us about the purity of a sample O Whether there is…

A: What does the ratio A260/A280 tell us about the purity of a sample of purified DNA? 1. Whether there…

Q: What solution(s) can act as buffer solutions? Check all that apply. A B C X Ś

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

Q: JOTK assign Synthesis practice 1) Synthesize this compound only using only organic starting…

A: The question is based on the concept of organic synthesis.  we need to synthesize the product using…

Q: which of the following are true statements of buffers made from an acid and it's conjugate base ?

A: Buffers play a critical role in maintaining a stable pH in various chemical and biological systems.…

Q: Using average bond enthalpies (linked above), estimate the enthalpy change for the following…

A: Bond Enthalpy also known as bond dissociation enthalpy describes the amount of energy stored in a…

Q: A student named the molecule shown below as 5-heptene. Explain the error made by the student and…

A: • Identify the longest continuous carbon chain. • Identify the substituent group attached to the…

Q: What is the name of this compound ?   what is the oxidation number of the chromium ion ?  Answer…

A: In order to determine the oxidation state of central metal atom and name of the complex, it is…

Q: Complete the following statements by determining if the given solution is acidic, basic, or neutral.…

A: If pH is greater than 7 then the solution is basic.  If pH is less than 7 then the solution is…

Q: A laboratory investigation shows that a sample of uranium ore contains 7.92 mg of 23892U (molar mass…

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Q: Which represents a weak acid? Check all that apply. AD B C 0

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. [H₂] [12]…

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Q: Naming Alkanes

A: According to IUPAC nomenclature :  Select the longest continuous chain of carbon atoms called as…

Q: Suggest a reasonable synthetic strategy for synthesizing 3,5-dichlorobenzyl amine from benzaldehyde.

A: Purpose: To synthesize 3,5-dichlorobenzylamine from benzaldehyde.

Q: aqueous sodium bromide yo form a pracepitate?    Pb(C2H3O2) aq LiNO3 aq KCl aq NH4 aq

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Q: Which of the following is the final product of the reaction shown below? H₂O, H₂SO4 HgSO4 B oló osa…

A: Question

Q: 0= 1) NaOEt 2) CH31 H H

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Q: Carbon dioxide (CO2) is a product of energy metabolism. Exercise increases metabolism and leads to…

A: pH of blood of athlete's blood = 7.1

Q: A₂+B₂-2 AB Suppose the reaction is carried out at two temperatures for the same amount of time as…

A: Answer: For most of the reactions, increase in temperature causes an increase in rate of reaction,…

Q: Twenty dietary iron tablets with a total mass of 131 g were ground and mixed thoroughly. Then 2.998…

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

Q: molar enthalpy of combustion

A: 1. It is the change of enthalpy when 1 mole of a substance is completely burnt in excess oxygen is…

Q: Consider the system: A(g) = B(g) at 25°C. Assume that GºA = 8542 J/mol and GºB = 11154 J/mol.…

A: Answer:- This question is answered by using the simple concept of calculation of equilibrium partial…

Q: 2.4 The unit cell for Platinum (Pt) has atoms which are located at each of the corners and at the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Using only the periodic table arrange the following elements in order of increasing ionization…

A: Answer: Energy required to remove the most loosely bounded electron from a isolated gaseous atom is…

Q: Using a table of standard reduction potentials, determine the best answer to the following…

A: a) Which of the following reagents would axidize Fe to Fe2+ but not Ag to Ag+ ?   b) Which of the…

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.