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Q: In aqueous solution buffered at a pH of 6.75 Penicillin G (molecular weight of 334.39 g/mole) underg...

A: The question is based on the concept of chemical kinetics . we have been given rate constant for the...

Q: Three resonance structures can be drawn for CO2. Which resonance structure is best from a formal cha...

A: The resonance structure of CO2

Q: Provide a curly arrow mechanism

A: Attack of nucleophile to the carbonyl carbon which is the nucleophilic centre. Protonation with the ...

Q: Which of the processes can help solids dissolve faster?     decrease the amount of solvent ...

A: A solute dissolves faster in a warmer solvent than it does in a cooler solvent because by increasing...

Q: 8. This is not a good buffer pair. A. boric acid and sodium borate B. sodium chloride and sodium hyd...

A: 8. Given answer of choices,    A. Boric acid and sodium borate   B. Sodium chloride and sodium hydro...

Q: Show how you could accomplish the following transformation. Be sure to show the structures of the pr...

A:

Q: This is a reaction scheme for epoxidation of cholesterol with MCPBA. The reaction mixture was put th...

A: alumina acts as seperating agent . Burette is filled up with alumina. Then product mixture is put on...

Q: What is/are the confirmatory test for the presence of β-naphthol methyl ether?

A: Given:   β-naphthol methyl ether   To find Confirmatory test for β-naphthol methyl ether

Q: Determine which two of the following reactions are redox reactions. If the reaction is a redox react...

A: Loss of electrons is oxidation Gain of electrons is reduction

Q: Gas Law Partner Problems #1 #1: 2.00 L of a gas is at 740.0 mmHg pressure. What is its volume at sta...

A: (1) By help of Following formula, we can calculate the volume of the gas at standard pressure - P1V1...

Q: What is the dot diagram for Na and f

A: Atomic number of Na is 11 which means it has 11 electrons. Atomic number of F is 9 which means it ha...

Q: Calculate the energy (in kJ) required to heat 0.542 grams of water from -42.9 ℃ to -19.3 ℃.

A: The mass of water is = 0.542 g The rise in temperature of the water is = from -42.9 ℃ to -19.3 ℃

Q: Arsenous acid, H3AsO3, pKa2 = 7.00. What is the pH of a solution made up to have [H3ASO4) = 1.00 M a...

A: In this question, we have to find out the correct answer of given problem by the help of henderson h...

Q: 9. Convert 129°C to K 129 K 402 K 273 K -144 K

A: To convert 0C to K, add 273 to 0C.  

Q: Substance pH Orange Juice Soap Pure water 3-7 7.0 Bleach 13.0 Battery acid 1.5 Which of the above su...

A:  

Q: Help

A: Generally, metals forms ionic compounds and non- metals forms covalent compounds. There can be some ...

Q: 8. A particular base has a pK of 8.77. What is the pH of 0.10 M solution of this base?

A: The chemical reaction for the dissociation of a weak base B is written as: B(aq)+H2O(l)→BH+(aq)+OH-(...

Q: What is the final temperature (in °C) of 500.1 g of water (specific heat = 4.184 J/g.°C) at 24.20°C ...

A: q=m×c×(T2-T1) Where  q= heat absorbed m=mass  C=specific heat of the substance T2= final temperature...

Q: Given the information: One liter of hot water will dissolve 83 g of compound Z. One liter of cold wa...

A: One liter of cold water will dissolve = 12 g of compound Z. Or we can say that  12 g of compound Z d...

Q: If you start with 7,152 grams of a radioactive kind of lanthanum and the half-life is 93 minutes, ho...

A: Initial mass of radioactive lanthanum =  7152 grams  Half-life time = t½ = 93 min   We have to find ...

Q: If 0.24 g of a gas dissolves in 1.0 L of water at 1.5 atm of pressure, how much of the gass will dis...

A: Given data, mass of gas=0.24g Volume of water solvent=1.0L Initial pressure (P1)=1.5 atm Final press...

Q: How many equivalents of phosphoric acid are contained in 300 mL of 4.00 Mphosphoric acid? (Assume th...

A: Given 300 mL of 4.00 M phosphoric acid

Q: Identify the alcohol molecule in the ester compound butyl methanoate. Select the correct ans...

A: The structure of Butylmethanoate :  

Q: starting materlals 1 and 2 was used to obtaln the product? Click on a letter A through D to answer

A: It is used to make a six membered ring  In this reaction a ketone and alkyl vinyl ketone are treated...

Q: Draw the expected major product of the following reaction sequence

A: beta-keto ester on reaction with base give beta keto carboxylic acid. On further heating in presence...

Q: 3. Pressure at STP in torr is 760 62.36 273 1 CLEAR ALL

A: Answer:- This question is answered by using the simple concept of STP which states standard temperat...

Q: Vhen diluting a solution, what happens to the amount of solute and the amount of solvent in th. solu...

A: Dilution to the process of adding additional solvent to a solution to decrease its concentration. Th...

Q: Predict what will happen when a mixture of leaf pigments is placed on a piece of paper and solvent i...

A:

Q: Fill in the blanks with the given information

A:

Q: At what temperature will 5g of f2 exert a pressure of 120kpa at a volume of 0.75L?

A: By help of Following Ideal Gas formula, we can determine the temperature of the Fluorine gas (F2) - ...

Q: A student mixes solid sodium metal with bromine gas. Write a short essay 5 to 7 sentences answering ...

A: As per our guidelines , we can only solve first three sub-parts of a question. Please resubmit other...

Q: CaO forms a solid solution with Bi2O3 to give a material with a high anionic conductivity. If 10 mol...

A: Given:-         CaO forms a solid solution with Bi2O3 to give a material with a high anionic conduct...

Q: 10. Gaseous propane at 20 °C is burned with 70% excess air that enters the combustion chamber at a r...

A: Given data: Air = 70 %  Rate= 1.3 kg/min Temperature = 9° C Pressure = 1 atm   Combustion of propane...

Q: Calculate the pH of a 0.36M methylamine (weak base) (CH3NH2) solution, if Kb = 4.4x10-4

A: In the solution when methylamine is dissolved in water it will from CH3NH2 + H2O →CH3NH3++OH- The pH...

Q: For each of the compounds below, indicate the oxidation state of each element in the compound. Be su...

A: The oxidation state shows the degree of oxidation for an atom in a chemical compound. MgCl2 Magnesi...

Q: The solution is a plumbing engineering question with all solution steps and a diagram 

A:

Q: Reaction between nitrogen gas and oxygen gas to form nitric oxide, an exothermic reaction that relea...

A: Exothermic reactions : Reactions that are accompanied by the evolution of heat are called exothermic...

Q: Pls show

A: Retrosynthetic Analysis: Imaginary breaking the bond into the workable reagents that can be combined...

Q: 1) Base 2) O 1. Lithium diisopropylamide in THF at -78 "C. O 2 NABH4 in methanol at room temperature...

A: The question is based on the concept of organic reactions.   We have to determine which of the given...

Q: Why is it difficult to determine an exact number for P/O ratios?

A: he Phosphate/Oxygen Ratio, or P/O Ratio, refers to the amount of ATP produced from the movement of t...

Q: What is the function of Control rods in a reactor?

A: Nuclear reactors are used for the generation of electricity. In these reactors, nuclear fission reac...

Q: Which of the following is true according the the Arrhenius theory of bases? A strong base decreases ...

A:

Q: The two esters shown below react in the presence of sodium methoxide. What is the major product? Cli...

A: The given reaction is an example of organic synthesis via enolate ion. The activated methylene group...

Q: C. For each of the following reactions, predict the products, converting each to a balanced formulae...

A: when Copper ii sulfate reacts with potassium hydroxide it gives Copper ii hydroxideppt and Potassium...

Q: The product of [H3O*] and [OH-] in water A. is greater than 1 B. decreases with pH C. increases with...

A: The pH is a method that determines the acidity and basicity of a solution. The pH of a solution is g...

Q: Chem Help

A: In given question name of ion matched

Q: Can someone please help compete the last table

A: Mass percent of a substance can be calculated as follows; Mass percent=Mass of substanceTotal mass×1...

Q: Look at the diagram below of a ten-fold serial dilution. Serial Dilution 9 mL stock solution 1 mL st...

A: Serial dilution: It is a sequence of dilution of a substance in the solution and the dilution factor...

Q: Write the products of the following reactions. If there is no reaction write NR.

A: CrO3/H2SO4 is an oxidizing agent. Any side chain consisting of hydrocarbon gets converted to carboxy...

Q: A student is presented with the following data: pH meter reading 10.5 Concentration of H+ ions low B...

A: According to the given information, the pH of the solution is 10.5, the hydrogen ion concentration i...

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".