An aqueous solution contains 0.461 M ammonla. Calculate the pH of the solution after the addition of 3.38x10-2 moles of hydrobromlc acld to 155 mL of this solution. (Assume that the volume does not change upon adding hydrobromic acid.) pH =

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A: Given data : Initial volume(V1) = 3.25 mL Initial concentration(M1) = 4.21 × 10-7 mol L-1 Final volu...

Q: Suppose you need a buffer with a pH of 4.9. Which conjugate acid-base pair should you use? O sodium ...

A: To find the appropriate buffer of given solution we need to find the buffer range of each conjugate ...

Q: Choose the best Lewis structure for C2H30¯. (It will help to work out the missing formal charges for...

A: The formula of the specie given is C2H3O-. And the possible Lewis structures given are,  

Q: A student gets a percent transmittance reading of 34.7% Calculate the absorbance reading.

A: The absorbance can be calculated as follows

Q: Calculate the volume of a 1.5 M HCl solution needed to completely react with .25g Mg.

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Q: The following thermochemical equation is for the reaction of Fe3O4(s) with hydrogen(g) to form iron(...

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Q: The decomposition of hydrogen peroxide (H2O2) was observed and yielded the results shown below. Time...

A: Simply we can find the order of reaction from a  reactant concentration vs time graph. A standard gr...

Q: Phase Diagrams Phase Diagram - Water Questions #1-5 refer to the phase diagram for water (shown to t...

A:

Q: 1)What is the specific heat if 24.8 g of a metal absorbs 275 J of energy and the temperature rises f...

A:

Q: Complete the following solubility constant expression for Ag, CrO4. K. sp

A: Write solubility expression for Ag2CrO4 --

Q: Write the suffix -ene for alkenes and -yne for alkynes

A:

Q: Why is it important to know the structure of an organic compound? Use your understanding of isomers ...

A: The question asks about the importance of structure of an organic compound. The exact structure of a...

Q: the questions by writing the correct letter of your answer. Explain your answer briefly in 1 or 2 se...

A: Given-> (d)-> bleach ,pH 12.5 - 13.5 (e) ->distilled water ,pH =7  

Q: Write a balanced equation for the formation reaction of each of the following substances: a) K3PO4(s...

A: There are different coindition for production of compounds

Q: 1) Circle all asymmetric atoms in the following structures, and assign their absolute configurations...

A: Assymetric atoms or assymetric carbon atoms are those carbon which is attached to 4 different groups...

Q: Questions 1

A: Since you have posted multiple questions, the answer for first question is given below. Kindly repos...

Q: Consider the Lewis structure below. Assign formal charges to each atom. [Image description: A Lewis ...

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Q: What is the IUPAC name of (NH,),S? (You must spell the name correctly to get the answer right.) 4)2

A: Write name of (NH4)2S ?

Q: Zinc reacts with copper sulfate in a single replacement reaction as follows             Zn (s)  +  C...

A: Given:-  Zn (s) +CuSO4 (aq)→ZnSO4 (aq)  + Cu(s)  mass of Zn = 50 g  Actual yield of Cu = 42.50 %  To...

Q: (a) Give the name of the following metal complexes based on the latest IUPAC nomenclature. 0 (Co(en)...

A: (a) here, as a ligand two ethylene diamine ,two bromide are present. And as an anionic part nitrate ...

Q: At equilibrium, the amount of product is increasing. True False

A: Equilibrium: The state of reaction at which the contraction of the reactants and products does not c...

Q: a. Pb2* ion Probable Observation Treatment After heating After adding K2CrO4 b. Ag* ion Treatment Af...

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Q: A student carried out a similar experiment to the one in this lab, but used a hydrate of cobalt (II)...

A: * To determine % error, you will require previously determined value of n also. Then, % error = Prev...

Q: How many moles of gas would you have if you had a volume of 38.0 L under a pressure of 1432 mm Hg at...

A: An ideal gas is a theoretical gas composed of many randomly moving point particles that are not subj...

Q: he change of the entropy for a process of dissolving the polymer in certain solvent is S = -0.07- mo...

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Q: The human eye can detect light at a frequency of 7.57×1014 Hz in the visible region of the spectrum....

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Q: In this peptide the amino terminus is the amino acid Cys-Ala-Gly-Arg-Gln-Met a.arg b.Cys c.gln d.met...

A: Peptide has two ends: N terminal amino acid residue and C-terminal amino acid residue. 

Q: 19. Propose an efficient synthesis of benzaldehye from toluene. Write complete equations showing the...

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Q: 25.00 mL of a 1.000 x 10-1 M solution of HClO4 is titrated with a 1.052 x 10-1 M solution of NH3. 1)...

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

Q: what do we call a substance that is used to reveal whether a chemical is an acid or a base?

A: Substance that is used to reveal whether a chemical is an acid or a base

Q: di H:(SO,) + Fm(OH), →

A: Step by step solution are below

Q: can be m metnyi as snov the reaction below. CH3CI (g) + 3 Cl2 (g) -> CCI4 (g) +3 HCI (g) In the firs...

A: Given-> CH3Cl(g) +3Cl2 (g) -->CCl4(g) + 3HCl Initial concentration of Cl2 =0.303 M Final conce...

Q: What will happen to water if 1M of NaCl is added to it? the vapor pressure of water will increase t...

A: To solve this problem we have to know about the given colligative property .

Q: follow to calculate the value of ΔH° for the reaction: 4 B  2 A + C + 2 F A + 2B   E       ΔH° =

A: Using Hess's law,  Enthalpy of a reaction is always remains constant whether reaction completes in o...

Q: A 1.00 L buffer solution is 0.200 mol L-1 in C6H5COOH and 0.250 mol L-1 in C6H5COOLI. The Ka for C6H...

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Q: A1 liter solution contalns 0.403 M acetic acid and 0.537M potasslum acetate. Addition of 0.201 moles...

A: Given data : Moles of acetic acid = Concentration × Volume = 0.403 M × 1 L = 0.403 mol Moles of pota...

Q: Calculate the molarity of a NaCl solution prepared by mixing 75.0 mL of a 6.0 M NaCl solution with e...

A: Given - - > At initial,  M1 = 6 M V1 = 75 ml At final,  M2 =? V2 = 500 ml

Q: Calculate the effective nuclear charge, Zeff, of Uqn-140.

A: To Calculate effective nuclear charge Zeff, of Uqn-140.

Q: 3.38 Mercury is poured into the tube in the figure until the mercury occupies 375 mm of the tube's l...

A: Solution -

Q: Question 18 A student performed an experiment to determine the percent water in a sample of food and...

A: Percent composition of a substance can be obtained from percent ratio of mass of given substance to ...

Q: You need to make an aqueous solution of 0.244 M iron(II) iodide for an experiment in lab, using a 50...

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Q: Match each element with the charge it will have when it becomes an ion. nitrogen xenon magnesium bro...

A: Write charge when atom present into ion form ?

Q: Propene undergoes a hydration reaction with water in the presence of an acid. a. There are two possi...

A: In this question, when propene undergoes a hydration reaction with water in the presence of an acid....

Q: What is the pH of a 0.10 M solution of ethylamine at 25º C? The pKb of ethylamine at 25º C is 3.25. ...

A: Ethylamine is a weak acid so it dissociates partially.

Q: Calculate the concentration of dissolved sulfate ion in solution if 75.0 mL of a 0.0250 M Ba(NO3)2 a...

A: Given,  [Ba(NO3)2] = 0.0250 M  Volume of Ba(NO3)2 = 75.0 mL  [Na2SO4] = 0.0100 M  Volume of Na2SO4 =...

Q: (True or False, explain if its false) The value of the chemical displacement of a proton is determin...

A: In the given problem we have to discuss whether the statement given "The value of the chemical displ...

Q: Calculate the energy for each level of the H and He". HYDROGEN Orbit Energy N= 1 n=2 n =3 n = 4 N =5...

A: In this question,we have to calculate the energy for each level of H and He+:

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Q: In the preparation of 60 mL Magnesium citrate in the laboratory, you are required to: calculate for ...

A: The volume of carbon dioxide produced during the formation of magnesium citrate from the reaction of...

Q: Explain with chemical equations form the reaction of [Cu(NH3)4]SO4•H2O Heated the solid in an igniti...

A: Balance chemical equation is the equation in which number of atoms on both left and right hand side ...

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.