What is the ratio of conjugate base to undissociated acid for a weak acid with a pk, of 4.4 at a pH of 9? Put your answer in the form of (scientific notation, two significant digits): X.X*10^y

Q: For 2,2-dimethylbutane Write out a balanced combustion reaction using molecular formulas. Draw all…

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Q: Write the palladium-containing product for the following reaction and indicate its stereochemistry:…

A: We can solve this question by using the concept of trans effect where CN- regulates the substitution…

Q: Calculate the pH when 21.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH;NH2 (Kb = 4.4 x…

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Q: 1. The density of CH,CN is 0.786 g/mL, and the density of CH,OH is 0.791 g/mL. A solution is made by…

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Q: You have an alkyl halide and the product has a thiol group without an alkyl, what is the reagant?…

A: These are substitution  reaction which takes place between alkyl halide and Nucleophile

Q: The answer is -44.97 but please provide the steps. As2S3(s) ⇌ 2As3+(aq) + 3S2−(aq) K = 4.95 × 10-20…

A: The reactions given are, 1) As2S3(s) ⇌ 2 As3+(aq) + 3 S2−(aq)                    K = 4.95 × 10-20…

Q: Identify the functional groups circed in the molecules below. HO, H-N NH2 7. но Blank # 1 Blank # 2…

A: Different functional groups are: Aldehyde group  (R-CHO) Carboxylic group (R-COOH) Ether (R-O-R')…

Q: What is the numerical value of K, the equilibrium constant, for a reaction with a A G° of -10 kJ at…

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Q: The enthalpy of sublimation (direct conversion from solid to gas) of carbon dioxide is 26.1 kJ/mol.…

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Q: 103 The nucleus of a 45Rh atom weighs 102.90550 u. Calculate the binding energy in 103 units of…

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Q: determine what would happen to the position of the equilibrium when the following changes are made…

A: Equilibrium can be defined as the state of reaction in which rate of forward reaction become equal…

Q: The negative value of standard electrode potential indicates that the metal is L easily oxidized II.…

A: Oxidation process occur at anode and involve loss of electrons. Reduction involve gain of electrons…

Q: the following functional groups according to their DECREASING reactivity with nucleophiles. [esters,

A: Now the above picture represents the reactivity order towards the nucleophile

Q: Compound Z has a heat of vaporization of 155.9 J/g, a specific heat capacity of 2.08 J/gºC, and…

A: Given, Boiling point = 72.1 °c □Hvap = 155.9 J/g C(l) =  2.08 J/g-°c Mass of. Z(m) = 562.4 g

Q: Malate is converted to oxaloacetate by the enzyme malate dehydrogenase in the final reaction of the…

A: Given : E° = -0.17 V E° = -0.32 V   Finds : To calculate the 1) ∆E° 2) ∆G° 3) ∆G is favorable or…

Q: Using the thermodynamic information, calculate the standard reaction free energy for the reaction…

A: In this question, we have to calculate the ∆Grxn and also fill the given boxes.

Q: Which of the statements below is true for a reaction that is endothermic and leads to an decrease in…

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Q: A reaction mechanism is show below A +B → C step-1 step-2 step-3 step-4 C+D→ E C+C→ C2 E → D+F What…

A: Write balanced equation for the reaction ?

Q: Balance the following oxidation-reduction reaction as if it were to occur in a basic solution. I(aq)…

A: Oxidation means losss of electrons and reduction means gain of electrons.

Q: 3. Write the palladium-containing product for the following reaction and indicate its…

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Q: Which of the following structures would not be a legitmate intermediate for the mechanism of the…

A: We can solve these questions by drawing the full mechanism of the given reaction and applying the…

Q: 1. A two-component mixture is analyzed by paper TLC. Component A is more soluble in the mobile phase…

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

Q: 30. the atomic masses on the table below to calculate Am for the change 14 Si 2 7N. u ch is more…

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Q: 7) The o-complex formed for the bromination of benzoic acid should be Br. H. .COOH .COOH СООН Br…

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Q: 2.1 Calculate the A H for this reaction at 298 K.

A: We are given the values of  standard enthalpy,  standard entropy and standard gibb energy.

Q: sing the energy (heat) released during the nucle. ires. sing the energy (heat) released during the…

A: In nuclear power plant's energy produces due to nuclear energy then it supplied to water  to form…

Q: Group of answer choices from the cathode to the anode from the positive electrode to the negative…

A: Electrochemistry can be defined as branch of chemistry that deals with interaction between chemical…

Q: How many atoms of carbon are combined with 7.31 moles of hydrogen atoms in a sample of the compound…

A: Given : number of moles of hydrogen atoms in a sample of heptane = 7.31 mol  To calculate : number…

Q: II. lodometry II. Permanganate IV. Dichromate

A: Indicators can be defined as the  substances that change colour when they are added to basic or…

Q: A lake water is analyzed and found to have 1.2 mg NH4*/L, at pH = 7.8. a. Using pKa and ionization…

A: pKa for NH4+ ions is equal to 9.26.

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:…

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Q: 49. Which redox equation is correctly balanced? A. Cr3+ + Mg → Cr + Mg²+ A13+ + K → Al + K+ C. Sn4+…

A: A redox reaction is balanced by balancing the mass and charge. Hence the number of atoms of all the…

Q: What is the mass of a piece of iron that releases 212.32 joules of heat as it cools from 89.65…

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Q: 3. A piece of metal "X" weighing 0.0382 g was placed in a eudiometer containing dilute aqueous HCI.…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…

Q: Using the data, calculate the delta H°, delta S°, delta G° for the following reaction and say if it…

A: The reaction given is, => P4O10 (s) + 6 H2O (l) →C6H12O6 (s) + 6 O2 (g)

Q: The following data have been obtained for the olysis of adenosine triphosphate, catalyzed by hy- en…

A: Given data:

Q: Draw and name five isomers of C6H14.  There are more than five, just draw and name five of them.…

A: Draw and name five isomers of C6H14.

Q: Chemistry Briefly describe the differences between the scanning and SIM approaches with reference…

A: Answer - According to the question - (TIC) - A TIC (Total Ion Chromatogram) is a chromatogram…

Q: 19.64 g H2SO4 dissociated in 100.0 g of water in a coffee cup calorimeter. The temperature rose from…

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Q: Which one of the following is the strongest or most powerful reducing agent? A) Br- B) Cr+3 under…

A: Reducing agent is the agent which reduces other reactant and oxidises itself. Higher the value of…

Q: According to the following reaction, how many grams of nitrogen gas will be formed upon the complete…

A: Given  Mass of NH4NO2 = 28.0 g We know that, Number of mol = mass / molar mass Number of mol of…

Q: Calculations: Standardization of HCl Titrating Solution: Using your best two or three…

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

Q: Which describes the functional group(s) of the following molecule? H. CCH2CH3 aldehyde ketone…

A: The given molecule is :  Which describes the functional group (s) of the given molecule = ? Options…

Q: How can chemical potential energy be related to the heat lost or gained in chemical reactions?

A: Exothermic reactions are those in which heat is released and endothermic reaction are those in which…

Q: 5. What is the net ionic equation for the reaction that occurs if we mix aqueous solutions of…

A: Dear student,  As you have asked multiple question but according to guidelines we will solve first…

Q: A CSTR reactor is designed for the irreversible conversion of A into B and C. The reactor is…

A: The rate law of the reaction is given as, => -rA = K[A] Given: [A]0 = 100 g/L. Assuming that the…

Q: What Concentration of sulfite ion will produce a solution with a ph of 10.00?

A: pH of any solution is called as the concentration of the H+ ions present in it. The pH of the…

Q: Create a cell diagram with states of matter and charges for the two redox reactions below: Al(S) +…

A: Let us discuss both the reaction.

Q: A 0.4755-g sample containing (NH,),C,O, and inert materials was dissolved in water and 3. strongly…

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Q: [References] a. Will dichromate ions oxidize chloride ions to free chlorine in acidic solution?…

A: Oxidising agent can be defined as the species that oxidises other species. Oxidation means loss of…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.