What is the pH of a buffer that is 0.230 M in a weak acid and 0.500 M in the acid’s conjugate base? The pKa for the acid is 6.72.

Q: он OH d. C2H5 e. f. decane-2,2,9-triol 24 diguclonronule clobute 1 2

A: Since you have posted multiple subpart questions, the answer for first three subpart of question is ...

Q: Assuming 100% dissociation, 1.0 mol of NaBr dissolved in 250 g of water [ Select] have the same coll...

A:

Q: parts. Calculate the molecular mass or formula mass (in amu) of each of the following substances: (a...

A: a) CH4 Atomic mass of C = 12 amu Atomic mass of H = 1 amu

Q: Describe the effects of cooling an exothermic reaction at equilibrium.

A: Given it's a exothermic reaction. 

Q: A chemist measures the amount of chlorine gas produced during an experiment. She finds that 1.35 g o...

A: Calculating number of moles:

Q: Which of the following is NOT true about equivalence point and endpoint? O a. The endpoint approxima...

A: Titration is a method to determine the concentration of an unknown solution by using the solution of...

Q: Something is wrong with all 7 of these hypothetical responses for acids and bases. Your job is to fi...

A:

Q: What is the percentage of procaine HCI which will yield an isotonic solution with blood plasma? FD1%...

A: Applying for general formula           0.52-a/b

Q: The product of saponification is called salt. Explain why.

A: Reverse esterification that is the hydrolysis of ester compound is called saponification reaction . ...

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

A:

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E A D B Where would the bicyc...

A: Answer: This question is based on the conservation of energy according to which total energy ( which...

Q: unearth a treasure chest (you have such good luck!). Inside the chest is a beautiful clay vase. You'...

A: Given: Initial concentration of [C14]0=10-10 % Final concentration of   [C14]0=10-13 % Half life t12...

Q: en the thermochemical equation 2S02(g) + O2(g) – 2SO3(g), AH°rxn-198 kJ/mol, how much heat is evolod...

A: Answer and explanation is given below hope you like it.

Q: Q3/ A/ What is the concentration and density of a solution in mol/L when 80 g of calcium carbonate, ...

A:

Q: Enter the number of electrons in each energy level (shell) for each of the elements. If the energy l...

A: Enter the number of electrons in each energy level (shell) for Hydrogen element.,

Q: ow much heat is required to raise the temperature of 1.5 x 103 g of water from 45°F to 130.°F? The s...

A: Given, mass of water = 1.5 × 103 g Temperature increase from initial temperature, T1 = 45 oF = 7.22 ...

Q: Examine the following reaction, happening in the gaseous state: A+2 B C+ D. Describe the effects on ...

A: Given : gaseous reaction

Q: Wh e following desribes Exuoida A Enzymes that eleaves starch and glyeegen at the a -6 linkages 4 En...

A: According to guidelines we supposed to answer only three  Please post rest of the parts as separate ...

Q: 2NO2(g) → 2NO(g) + 02(g) It follows this reaction mechanism: NO,+NO 2NO+0, 2NO2 Progress of reaction...

A: Answer: This question is based on the understanding of reaction mechanism where reactant gets transf...

Q: A student attempts to determine the corred equation to describe the ther mal decomposition reaction ...

A: The mass of silver nitrate is = 4.7885 g The mass of residue is = 3.0406 g The correct equation for ...

Q: 6. Clearly and completely describe a simple, ONE step (a single reagent added) test that would allow...

A: a. NaOH is the single distinguishing reagent for Bi(OH)3 and Al(OH)3. Al(OH)3 reacts with NaOH to fo...

Q: Given that pKa = 4.72 at 25 °C for HN3, what is the pH of 0.125 mol L-1 NaN3(aq) at 25 °C? What is t...

A: A question based on equilibrium concept that is to be accomplished.

Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperat...

A:

Q: 5. Magnesium hydroxide (Mg(OH)2) has a pKsp value of 11.25. In a solution at pH 10, what is the maxi...

A: Given,  pKsp of Mg(OH)2 = 11.25  pH = 10  What is the maximum Mg2+ concentration in µmol/L = ?  What...

Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and i...

A: Mass of Al = 118 g Mass of Fe2O3 = 601 g

Q: 2- Analytical chemistry : is a measurement science consists of a set powerful ideas and methods that...

A:       Analytical chemistry is a branch of chemistry, used in the determination of chemical compositi...

Q: Sulfuric acid (H2SO4) is a strong acid because it dissociates completely in water. Calculate the con...

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Q: Calculate the E and identify the type of electrochemical cells of the following: (a) Ag|AgBr (a=0.10...

A:                                            EBr-/AgBr/Ag0 = 0.10 VECl-/AgCl/Ag = 0.22 V Anode:       ...

Q: The reaction A - R+S with rate -rA = k (0th order) occurs in a batch reactor that operates under iso...

A:

Q: The energies, E, for the first few states of an unknown element are shown here in arbitrary units. 1...

A: An electron will absorb the energy to go the next higher energy level. The energy of electron ejecti...

Q: If you calculated the molar mass of your unknown liquid to be 70.1 g/mol, which of the following do ...

A: Given-> Calculated molar mass of unknown liquid =70.1 gm/mole.    

Q: 7.37 Which product (or products) would you expect to obtain from each of the following reactions? In...

A: Given reactions are : Complete the reactions = ?   

Q: Calculate: 1) Create a buffer solution of pH= 4.00 from 1M acetic acid (HA)and 1 M sodium acetate (N...

A: Answer: Buffer solution is the type of solution in which addition of small quantity of acid or base ...

Q: 12.49.Explain why it is essential that fl uids used in intravenous injections have approximately the...

A: Answer of 12.49 is given below

Q: Which of the following statements does NOT explain why KHP is a suitable primary standard in an acid...

A:   KHP is a suitable primary standard in an acid-base titration. Here we have to find out the stateme...

Q: Be sure to answer all parts. Predict the sign of the entropy change for each of the following proces...

A:

Q: 2. A gas sample is found to contain 39.10% Carbon, 7.67% Hydrogen, 26.11% Oxygen, 16.82% P, and 10.3...

A: Given amount of elements are as follows C = 38.10% H = 7.67% O = 26.11% P = 16.82% F = 10.30% Atomic...

Q: the isommeric fonship between tne mo Your choices are dieastereomers, enantiomers, identical, or con...

A: Isomers are compounds which have same chemical formula or numbers of atoms but differ in structures ...

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first st...

A: Chemical reactions can be added, subtracted, or multiplied like an algebraic equation.

Q: Explain the correlation between the structure of the compounds (b-Carotene, chlorophyll ) and the po...

A: Atomic Structure and PolarityThe designs of the significant parts are given beneath. Note that the ...

Q: Part A What is the pH of a buffer prepared by adding 0.708 mol of the weak acid HA to 0.507 mol of N...

A: Well, to calculate the pH of the buffer we need to use the Henderson Hasselbalch equation. We can us...

Q: Which of the following is NOT an intermediate in the following process? H3O*, Heat OH NH NH3* а. H20...

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Q: 0.04 nm 104° +) A) Suppose the center of a water molecule was positioned 1.0nm away from a 2nC posit...

A: A) As we know, a charge is a source of e ll electric field,in which electric dipole (water molecule ...

Q: Calculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are...

A: To find the limiting/excess reagent,  • Convert the mass of reactants ( SO2 and O2 ) to moles.  •  D...

Q: If ferric sulfide reacts with oxygen, how many moles of ferric sulfide is required to produce 6g of ...

A: 4FeS +7 O2 = 2 Fe2O3+ 4 SO2

Q: 26. For which of these reactions will the sign of AG° be negative as written in aqueous solution at ...

A: Below attached file showing the details answer. All the best. 

Q: Which of the following techniques would NOT result in a titration error? a. Adding 100mL of distille...

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Q: following reaction is first order in N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for the reactio...

A: N2O5 (g) --> NO3(g) + NO2(g) Rate constant = 0.053 s^-1 [N2O5]=0.055 M      

Q: Draw Newman projections for the anti, eclipsed, gauche and fully eclipsed conformations of Butane. I...

A: Conformation signifies set of possible structures a molecule can have by means of rotation around si...

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

A:

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.