Which of the following ions is isoelectronic with Kr? A. Na+ B. S-2 C. Se-2 D. Ca+2

Q: Consider the following electrochemical cell: Pt|H2(B,p°)|HCI(aq,b)|Hg.Cla(s)| Hg() The potential of…

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

Q: 21.75 Calculate Wimal/ Winitial for mixing 1 mole of benzene with 1 mole of toluene at 300 K and 1…

A: Solution -

Q: na 0.735 M solution, a weak acid is 12.5% dissociated. a. Calculate the [H;0* ], pH, IOH¯ ], and pOH…

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Q: Equilibrium Expression Calculations Assignment 2 1. The reaction H2e) + I«e) 0.00034. If the initial…

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Q: ueL give the majororganic qadustot each-ofthe fallowing re.action? answer allpasts.otqušiones- CHO…

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Q: According to the deprotonation reaction shown below, which of the carboxylic acid species (1 to pKa…

A: See explanation

Q: Non-Spillable/Sealed Lead Acid, Lithium-ion (Li-ion), Alkaline & Zinc Carbon, Lithium (Primary),…

A: A lead-acid battery has large capacity rechargeable batteries. They are generally used in…

Q: if 10.0g of NaCI is dissolved in 5.0L of what, what is the resulting molarity

A: Given-> Weight of NaCl = 10.0 gm Volume of solution= 5.0 L

Q: 5. In the laboratory, strontium chromate (Ksp = 3.6 x 10³) can be prepared by mixing solutions…

A: We are given Ksp = 3.6 × 10-5

Q: The bond between Br atoms in a Br2 molecule is _______ and is formed by the _________ of two valence…

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Q: H3C- -CH3 CH3 H3C CH3 Но ČH3 CH3 A B D H2N NH2 OH CH3 -CH3 -CH3 H3C- CH3 H3C- H3C CH3 H;C ČH3 F G H

A: Ketone is a functional group which contains a carbonyl group (C=O) bonded to two other alkyl groups…

Q: X-rays are often used as a diagnostic tool to measure bone tissue. The frequency of a particular…

A: The wave length can be calculated as follows

Q: How many grams per milliliter does a soln of KNO2 contain if it is 0.100 N as a reducing agent?How…

A: Here we have to determine grams per ml of substance( reducing agent)present in solution if normality…

Q: 9O2  + 2P3 yields 6PO3 What would the pressure be if there are 2.75 moles of each gas in a 2.31 L…

A: 9 O2 + 2 P3  --> 6PO3 Given:  Moles of each gas = 2.75 moles Volume of the container = 2.75 L…

Q: How many grams is required in preparing 2M of NaOH in 2/3 Liters of solution. (mwt of NaOH is 40…

A: Molarity is a concentration term for a solution. The molarity of the given solution is defined as…

Q: Which of the following fragment is isolobal with [PtCl,] ? Answer Choices: (A) PtCl, (B) Cr(CO); (C)…

A: Two cluster fragments are said to be isolobal if they have same frontier orbital .Characteristics…

Q: 1.Alkaline hydrolysis of one mole of triacylglycerol yields________ a.One mole of glycerol and…

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Q: When 1.697 atm of H20 reacts with 0.808 atm of CO2, in a 55.00 L container at 25°C, how many moles…

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Q: Phenylhydrazone Formation Compound Structural Formula Theoretical Result (Short and Specific)…

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

Q: What is the percent ionization of 7.5x10-2 M HCN? Ka = 4.0 x 10-10 for HCN.

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Q: increase in the concentration of carbon dioxide in the atmosphere has led to the ________ of the pH…

A: In general if we talk about oceans then we can say that pH is around 8 to 8.4 but due to addition of…

Q: Danial cell is an example of .A Concentration celI .B Galvanic cell .c Electrolytic cel .D none

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Q: Br Br + CH, OCH,CH, H;C ČH, one step synthesis, the class is organic chemistry fundamentals, so the…

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Q: Which of the follwoing compounds is an arene?

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Q: According to the following reaction, how many moles of dinitrogen monoxide will be formed upon the…

A:

Q: A) Given the following set of data, plot the chromatogram (absorbance versus volume of eluate). Vol…

A: To plot the chromatogram, the volume of eluate is taken as x axis and absorbance as y axis The graph…

Q: A lens (f-number) has following measurements: diameter is 5.4 cm and focal length is 17.6 cm.…

A: The f-number of an optical system (such as a camera lens) is the ratio of the system's focal length…

Q: An analytical chemist is titrating 86.9 mL of a 0.7900M solution of piperidine (C,HNH) with a…

A: Here we are required to find the pH of the solution

Q: Identify the spectator ions in the following…

A: The ions which do not participate in chemical reactions and present the same on both sides of the…

Q: What was the purpose of the concentrated sulfuric acid in the first step of synthesis of aspirin?

A: The purpose of the concentrated sulfuric acid in the first step of synthesis of aspirin is shown in…

Q: 21.49 (a) Using principle of equipartition of energy theorem, without looking up data or doing…

A: To find out the value of Cv,m∘ and CP,m∘ at room temperature for HF using the law of equipartition…

Q: Calculate the enthalpy change for the combustion reaction below. 3 CH3OH + O2(9) → _ C(s) + DHO xn…

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Q: Write the Ka expression for each of the following in water: a HNO; b. CH.COOH HBrO

A: Here we are required to find the dissociation constant expression for acid given below

Q: - preparation

A: Given: Volume is 100 mL Concentration 0.25 M pH is 9.8 pKa of HCO3-=10.3Total millimoles=0.25×100=25…

Q: What would be the formula for an ionic compound composed of the ions    X2+  and   Y1− ?What would…

A: Ionic compounds can be defined as the compounds containing ionic bonds.ionic compounds contain ions

Q: :Carnot heat engine is a .A Real machine .B Experimental machine .c Hypothetical machine .D None

A: a) Carnots engine cannot be real because 100% efficiency cannot be obtained in real life. This is…

Q: According to the deprotonation reaction shown below, which of the carboxylic acid species (1 to pKa…

A: See explanation

Q: Living things absorb carbon-14 (C-14) throughout their lives, and then stop absorbing C-14 when they…

A: Half life = 5730 years This follow first order kinetics so first we will Calculate rate constant

Q: A diprotic base (B) has pK, values of 3.33 (pK5i) and 6.66 (pK2). Which of the equalities is true…

A: Here we have to determine the predominant species of a diprotic base B at different pH. Given pKb1=…

Q: P4.2 In a Dewar flask (an adiabatic enclosure), 20 g of ice at -5 °C and 30 g liquid water at 25 °C…

A:

Q: Based on temperature conversions which of the following is the lowest temperature?

A: We know that,  Temperature on Kelvin Scale = Temperature on Celsius scale + 273 Temperature on…

Q: Heat is the flow of energy from Low temperature to high temperature. Ob High temperature to low…

A: Heat is a type of energy and the heat of a system can be measured by measuring the temperature of…

Q: Predict the major product of the following reaction. Br Nal acetone

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Q: What is the major product of the following reaction? HBr ? 0°C (A) (B) Br Br (C) -Br (D) Br

A: Conjugated dienes can give 1,2 or 1,4 addition products in the electrophilic addition reactions. In…

Q: In an Sn2 reaction which one of these would be the poorest leaving group

A: Option 2 should be the correct answer Good leaving groups are the weak bases which tend to leave…

Q: Which of the following fragment is isolobal with [PtCl,]? Answer Choices: (A) PtCl, (B) Cr(CO), (C)…

A: We have to determine the fragment which one is isolobal with [PtCl3]-

Q: If the synthesized aspirin was not dried before melting point determination, what would be its…

A: If synthesized aspirin was not dried before melting point determination, then some amount of water…

Q: Chemical process industries use complex equipments. Some of these are fractional distillation…

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Q: Which components in a liquid chromatography (LC) instrument are similar to the experimental set-up?

A: As per the guideline, since you have asked multiple questions, we have solved the first…

Q: Use Table 6 values to calculate AG° (in kJ) at 2000 K for the following reaction: NO2 (g) + CO(g) →…

A: