What are the two components of a buffer solution? How do each of them maintain pH?

Q: 1. Mg HCI MgCl2 H2 + If 4.50 g Mg is made to react with HCl, how many grams of H2 will be theoretica...

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

A: The complete solution of the given question is as under : Here it is important to note that the give...

Q: Cation Symbol Anion Symbol and charge Compound Formula Name And charge lithium fluoride Li* F LiF so...

A: Cation : Cations are positively charged ion  Anion : Anion are negativity charged ion .  

Q: Two pieces of metal (A and B) are in contact with each other and initially at different temperatures...

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Q: What is the principal quantum number (n) for the valence electrons in lead?

A: Quantum numbers can be defined as the set of 4 numbers that help us to know about the electrons pres...

Q: How many grams of potassium permanganate are required to prepare 432 mL of 0.540 M solution

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Q: Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) ---> H2OU) AH = -285.8 kJ/mol (Equation 2...

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a che...

Q: Select the single best answer. Which of the following has more atoms: 3.70 g of helium atoms or 18.7...

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Q: 500 ml buffer solution which is 1,0F with respect to nitrous acid and 2.0 F with respect to sodium n...

A: Given :   Volume of buffer solution = 500 ml  Concentration of HNO2 = 1.0 F  Concentration of NaNO2 ...

Q: Consider the chair conformation of the molecule depicted below. Redraw this chair as a hexagon struc...

A: Conformation of molecules means isomers can be interconverted just by simple rotation usually formal...

Q: according to the equation below. 6CO.(g) + 6H,0(1) C,H,O,G) + 60,(8) Substance CO.lg) H,O() CH,Odls)...

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Q: Calculate the pH of a mixture containing 0.23 M HONH2 and 0.44 M HONH3Cl. (Kb = 1.1 × 10–8)  What i...

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Q: Calculate the molar mass of a compound if 0.400 mole of it has a mass of 308.0 g.

A: Given :- no.of moles of compound = 0.400 mol  Mass of compound = 308.0 g  To calculate :-  Molar mas...

Q: 2. Acid HKl, He0 Cこu base Naoll,1120 0-14 (0) O NH-2 base Navii, I20 cil2-0-C- (H3 420 KOH H20 pcid ...

A: Amides undergoes faster hydrolysis than esters.

Q: a. K2Cr207 / Aq. H2SO4 /heat b. HNO3 / H2SO4 c. Br2 / FeBr3 d. NaOH, then H2O2 e. Sn / HCI f. NANO2 ...

A: In electrophilic aromatic substitution reaction, methyl group acts as ortho para directing group due...

Q: How much heat (kJ) is evolved when 4.50 g of Fe 03 is reacted with excess carbon monoxide using the ...

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Q: 2. Consider the following Eewis symbols for elements X and Y. a. What are the Group numbers of X and...

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Q: Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C ...

A: Given :  A , B and C all are oxidising agents and reduces to A- , B- and C- respectively.  In soluti...

Q: Clikk in the ansner box to activate the palette. Determine the ompirical formula of a compound havin...

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Q: 3HF + Al(OH)3 à AlF3 + 3H2O 240 g of hydrogen fluoride react with 156 g of aluminum hydroxide to for...

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Q: A HCN – NaCN solution has a pOH of 8. The HCN concentration is 0.2F. Find the concentration of the N...

A: Consider the given information is as follows; pOH = 8 Ka of HCN = 4×10-10 Concentration of HCN = 0.2...

Q: What to do: Read and analyze the given situation below. Write your answer on a separate sheet of pap...

A: (1) hamburger patties= 14      bread slices : hamburger patties = 2:1 = 28 : 14                     ...

Q: 7) The most important reaction that allows our cars to do work is octane (C8HI8) combustion. 2 08HI8...

A:   As per guidelines if multiple questions posted  first question is allowed to solve , please post i...

Q: For each pair of isomorphous substances, select which would have the lattice energy of lesser magnit...

A: lattice energy is the measure of the stability of any compound Here we are required to find from the...

Q: Consider a 1.00 L of 1.50x10-3 M hydrocyanic acid (HCN, K,=4.9x10-10). 1. Write the equilibrium expr...

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Q: A HCN - NaCN solution has o pOH of 8. The HCN concentration is 0.2F. Find the concentration of the N...

A: Given data is as follows: The pOH of solution = 8 The concentration of HCN = 0.2 F The Ka of HCN = 4...

Q: What is the mean speed, K, of N2 molecules in air at 25°C?

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Q: What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 wi...

A: Aluminum reacts with chromium(III) oxide to form chromium and aluminum oxide. The equation for the b...

Q: A gas initially at 67.0 °C and 3.75 atm is heated to 346 °C and the pressure is reduced to 2.68 atm....

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Q: OH + H-C-0 (C) 0. (a)

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Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

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

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Q: Be sure to answer all parts. The AG for the reaction H,(e) + I(8)= 2HI(3) is 2.60 kJ/mol at 25°C. In...

A: Given-> H2(g) + I2(g) -->2HI (g) ∆G°= 2.60 KJ/mole = 2.60 × 1000 = 2600 J /mole (1 KJ = 1000 J...

Q: Select Draw Rings More Erase H CH;CH2OK CH;CH,OH heat Br

A: This is the concept of Organic chemistry

Q: In an alternate universe, these are types of electron cloud shapes a D cloud (shape in blue), and a ...

A: Answer: This question is based on the understanding of overlapping of orbitals that creates the bond...

Q: 13.3 L scuba tank contains a mixture of nitrogen, oxygen, and argon. 72% is nitrogen, 4% is argon, w...

A: Recall the relation between partial pressure and mole fraction of gas   Partial pressure = Mole frac...

Q: • Use the table of Bond Energies (BE) in the table below to calculate the Heat of Reaction, AHxn for...

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Q: In a(n) neutral solution, the concentration of H3O+ is _____ the concentration of OH-. -greater ...

A: Given statement : in a(n) neutral solution, the concentration of H3O+ is _____ the concentration of ...

Q: How many grams of MnSO 4 can be prepared from the reaction of 15.0 g of KMNO 4 with 22.6 g of H 2SO ...

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Q: QUESTION: What is the total number of d electrons in a single (ground state) K atom?

A: Atom K = potassium  Atomic number of potassium = 19 Hence potassium has 19 electrons 

Q: You started with 1.000 g of unknown and isolated 0.9550 g of metallic Cu. What is the calculated for...

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Q: Predict the MAJOR carbon-containing product(s) of each reaction. Show stereochemistry where applicab...

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Q: Fill in the boxes below with the necessary reagents. Each box must be one synthetic step (i.e., one ...

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Q: acid-base titration

A: Titration of acid with called acid base titration Or neutralisation . In which a primary standard su...

Q: Show the mecanism for the protection of the diol by forming an acetal with acetone. Remember this re...

A: Diol is used for protection of carbonyl group .  

Q: C-OH COOH 100° Amide HO `NHCH

A: Here we have to write the major product formed in the following given reactions.  

Q: Be sure to amer all parts. Heating copper(l) exide at 400°C dees met produce any appreciable amount ...

A: The answer is as follows:  

Q: HI Br Br Br H Br Brи Ill

A: Concept  1) Enantiomers are the non superimposable mirror images to each other.  2) Diastereomers ar...

Q: SnO2  +  H2   ? Sn  +  H2O

A: The balanced equation is-  SnO2 + 2H2 = Sn + 2H2O

Q: or OH- H. CH3 1) NaOH EtONa, heat 2) 3) H30* work up

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