What is the [Na2CO3] needed to mix with 0.2500 M H2CO3 to prepare 1.000 L of a carbonate buffer with a desired pH at 6.7? Ka H=CO3 = 4.500 x 10-7

Q: Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4…

A: Species that have same number of electrons are called isoelectronic species.

Q: In a reaction Al become Al+3 , it shows that.. 1. Al gained 3 electrons 2. Al lost 3 electrons 3. Al…

A: Electrochemistry is branch of chemistry in which we deal with redox reaction. Oxidation means loss…

Q: A double bond between two carbon atoms in a molecule that contains fatty acids would cause the…

A: When the double bond present in the fatty acid then fatty acid is called unsaturated fatty acid.…

Q: Imagine an altermate universe where the value of the Planck constant is 6.62607 x 10J-s. In that…

A: first calculate the wavelength of every object using de Broglie formula

Q: It takes 7.21*10-19 J of energy to remove an electron from an iron atom, this is referred to as the…

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Q: 6. affects its ability to dissolve because breaking up the sugar cabe decreases surface area and…

A: Yes , breaking of the large sugar cube into smaller cubes make possible to dissolve the sugar at a…

Q: 3D %3D 3D Draw one of the two enantiomers of the major product from this reaction. Use wedge and…

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Q: ID: B The molarity of an aqueous solution of NaCl can be defined as- 10. moles of NaCl per liter of…

A: ★ Answer : Correct option is  'a'   ★ Solution : * Concentration :  The measure of the amount of…

Q: Name the two ways that remove the most carbon dioxide from the atmosphere.  Carbon dioxide combines…

A: The two ways of removing carbon dioxide is by a)Photosynthesis b)Carbon dioxide dissolves in surface…

Q: Predict the product and include side product(s):

A: Carboxylic acids in the presence of acidic conditions reacts with alcohols to form esters.

Q: 1. Calculate the volume of 3.0 M H2SO4 required to neutralize the total 3 ml of 4 % borax (by mass)…

A: 1.

Q: 4 olo Spotify Web Playe M CommoH Ethical D. O CHEMICAL REACTIONS I OO 1/3 Using a chemical equation…

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Q: 7. A sample of 25.0 mL of 0.100 M solution of HBr is titrated with 0.200 M NaOH. a Calculate initial…

A: Given: Concentration of HBr = 0.100 M Volume of HBr solution = 25.0 mL = 0.025 L…

Q: product of the compound in 2.a) with the following reagents. Include stereochemistry where relevant.…

A: 1. 2-butyne reacts with hydrogen and Pd/C gives n-butane. 2. 2-butyne reacts with Na and liq NH3…

Q: Enough of a monoprotic acid is dissolved in water to produce a 1.261.26 M solution. The pH of the…

A: Given: Concentration of monoprotic acid (Assuming HA) = 1.26 M And the pH of the solution = 2.70

Q: Draw the most stable form of the major product of the given ester upon exposure to excess NaOCH,CH,…

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Q: Diborane (B2H6) is a highly reactive boron hydride, which was once considered as a possible rocket…

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Q: The value of ΔE in kJ, for a system that does 213 kJ of work on its surroundings and loses 79 kJ of…

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Q: 9. A chemist is conducting an experiment in which 500 grams of C12H22011 must be dissolved in 1liter…

A: We have to dissolve 500 gm C12H22O11 into 1 lit water.

Q: Write the chemical formula for mercury(I) nitrate dihydrate

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Q: Which of the following is not an allowed quantum state (n, l, ml, ms) 3,2,2,1/2 4,4,1,-1/2 5,4,-3,…

A: For a given value of "n" the values of ;  l : 0 to (n-1)  ml : -l to + l  ms : -1/2 , +1/2

Q: Given the reaction: A(g) + B(g) → AB(g) ; K = 9.80 x 10-8 Calculate the equilibrium concentration of…

A: Given,  The reaction: A(g) + B(g) → AB(g) ;              K = 9.80 x 10-8 .  The equilibrium…

Q: Calculate the standard cell potential for the reaction below and note whether the reaction is…

A: Since we know that for spontaneous reaction standard Gibbs free energy change is negative....

Q: 16. How many moles are in 2.50 L of a 0.500 M solution of KOH? c. 0.00125 moles KOH d. 3.00 moles…

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Q: Ammonia reacts with aluminium chloride as shown by the equation: NH3 + AICI3 H3NAICI3 (a) Draw…

A: 3a) Given that, the reaction between ammonia and aluminium chloride. NH3 + AlCl3 →H3NAlCl3. We have…

Q: A container contains , Ar, He, and Ne. The total pressure in the vessel was 987 torr. The partial…

A: Concept:  Dalton's Law of partial pressure: Dalton's law states that in a mixture of non-reacting…

Q: For cach of the following compounds, give the oxidation state of each element in the compound. a.…

A: Since you have posted multiple questions with multiple sub-parts, we will solve the first three…

Q: 2X(aq) + Y(s) ⟷ Z(aq) K = 658 at 425 K When the concentration of X = 0.063 at equilibrium, what is…

A: Given equllibrium  equation  2X(aq)+Y(s)  <-> Z(aq) Given equllibrium constant K =658…

Q: The point where the indicator actually changes color is called the. . of the titration. 1. start…

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Q: Why does a solid form at the interface of the two solutions?   PROCEDURE Synthesis of Nylon In a…

A: Given that, the synthesis of Nylon-6,10. We have to tell why the solid polymer formed at the…

Q: Part B Asink drain can become dogged with solid tat such an hceryl istearateintearin) Write the…

A: Sink drain become clogged with solid fat such as glyceryl tristearate.

Q: Which of the compounds is more soluble in an acidic solution than in pure water? AIPO4 O CSCIO4 Cas…

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Q: Calculate the Enthalpy of change in Kj/mol and % difference in the neutralization reaction below:…

A: The balanced neutralization reaction is: HNO2(aq) + NH3(aq)  ----> N2(g) + 2H2O(l) ; ∆Hrxn = -…

Q: The heat released in a reaction can be used as a source of mechanical power. What industrial…

A: Thermochemical reactions are those chemical reactions that involve a heat change. It is of two types…

Q: increasing oxidizing power.

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Q: At constant volume, the heat of combustion of a particular compou (molar mass = 162.47 g/mol) was…

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Q: Q 1. At 291 K, the equivalent conductivities at infinite dilution of HCl „NaCl and CH3COONA are…

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Q: H2 PUcharcoal H2 Lindlar's catalyst (1) OyCH-Cly-78°c (2) CH,COOH) H2 Pd/SrCO, (1) Oy/CH,C-78°c (2)…

A:

Q: What is the entropy change when 0.17 moles of CHCI, vaporizes at 61.0 °C? [AH(vap) = 29.6 kJ/mol at…

A: When a liquid changes into the gas at its boiling point the entropy of the system increases.

Q: 16. The combustion of cyclopropane is as follows: Known bond strengths (KJ/mole) C-H 413 C=0 799 O-H…

A: ∆Hrxn can be calculated u sing bond energies.  For this we count number of moles of each bond broken…

Q: Question 2 Which of following statement is TRUE for the two half cells with the salt bridge was made…

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Q: A solution is prepared by dissolving 15.0 g of NH3 in 250.0 g of water. If The density of the…

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Q: If the Ka of a monoprotic weak acid is 5.8 × 10-6, what is the pH of a 0.47 M solution of this acid?

A: Given: Ka=5.8×10-6 Molarity of acid = 0.47 M

Q: With reference to the following reaction scheme: LIAIH4 Et,NH HCI (cat.) A C3H180 B C12H25N Me Но…

A: We have to draw the structures of the compounds A-D.

Q: Calculate the de Broglie wavelength for a proton with a velocity 5.0% of the speed of light.

A: Given :- velocity of proton = 5.0% of speed of light  To calculate :- de Broglie wavelength for…

Q: For which of the mixtures will Ag2SO4(s) precipitate? 150.0 mL of 0.10 M NazSO4(aq) and 5.0 mL of…

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Q: A chemist titrates 240.0 mL of a 0.0766M ethylamine (C,H,NH, solution with 0.3238M HBr solution at…

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Q: Draw a tine the thoough the on-carbon bond that id formed as9 Hesult of the aldol or Claison…

A: We have to draw a line where the C-C bond is formed through the Aldol reaction or the Claisen…

Q: Enough of a monoprotic weak acid is dissolved in water to produce a 0.0195 M solution. The pH of the…

A:

Q: 5. Calculate Keq given the following: A(aq)=3B(s)+2C(aq) [A]eq= 0.812 M [B]eq=0.718 M, [C]eq= 0.319…

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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.