(Q22) Which of the following pairs is not or could not produce a buffer solution? O CH3COO"/OH O NH3/NH4* O CH3COOH/CH3COO O CH3COOH/OH O NH3/HCI

Q: Select an element on the periodic table to see its electron configuration. Spectroscopic (spdf)…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: 1. What volume of a 0.500M HCl reacted with enough Zn metal to produce 1.50g ZnCl2 based on the…

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Q: Post Lab Questions: 1. Determine the formal charge on each of the atoms in SO2 (make sure to label…

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Q: Which of the following statement(s) is/are true regarding free energy? (Select all that apply.) A…

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Q: %3D What is the pH of a 0.1000 M NACH3COO solution? (Ka CH3COOH = 1.8x10^-5) 4.75 5.13 8.87 7.45…

A: We have find out pH of 0.1000 MNaCH3COO Solution.

Q: The temperature of a sample SF6 at a fixed volume is changed , causing a change in pressure from…

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Q: quantum numbers and orbital notation. Explain why these are impossible. a. n=4, =2, m²-3, m,=-½ b.…

A: ->n,l,ml,ms are quantum number then l =0 ( s orbital) l = 1 ( p-orbital ) l = 2 ( d-orbital)  l =…

Q: How do you draw the chemical structure of the following? 1. 2′-fucosyllactose…

A: In this question, we have to draw the chemical structure of the following molecules:…

Q: 8.) What is the identity of the unknown gas if it effuses through an orifice 2.55 times faster than…

A: Z= PV/ nRT is known as compressibility factor...

Q: 4NH3(g) + 502(g) → 4NO(g) + 6H2O(g) AH = -906 kJ What is AH for the reaction: NO(g) + 3/2H20(g)…

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Q: Consider the titration of 40 mL of 0.2 M NH3 with 0.5 M HCI. Calculate the pH after addition of the…

A: In this question it is ask that what is the pH of resultant solution when addition of HCl in NH3 as…

Q: Suppose you burn a 2.4 g sample of potato chips. You use the heat given off from that process to…

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Q: the pH of a buffer solutiont

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Q: Determine the rise, run, and slope of the line formed by these points. rise: run: slope: What is the…

A: We have find out rise, run, slope and activation energy for the reaction.

Q: Write the net-ionic reaction that occurs between Na2HPO4 and NaOH (an acid-base reaction)

A: Write net-ionic equation of the given acid-base reaction---

Q: the water for 5-8 minutes. Take the temperature of the water at the end of the time boiling. Shut…

A: #Q.1: Inside a soda bottle carbon dioxide gas, CO2(g) is dissolved under high pressure. So the…

Q: NaOH/H,0 -NCI 4. O C

A: Given,

Q: For the reaction Ca(OH)2(aq) + 2HCl(aq)CaCl2(s) + 2H2O(l) H° = -30.2 kJ and S° = 205.9 J/K The…

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Q: Write the formula of the conjugate base of the Brønsted-Lowry acid, HCIO,

A: Given Bronsted - Lowry acid is HClO2  Bronsted Lowry acid => Substance which proton donar.

Q: What is the correct IUPAC name of the structure below? CH,CH3 CH;CH,CHCHCH,CH,CH; ČH3…

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st…

Q: In a titration of 32.0 mL of a 0.250 M solution of a triprotic acid H,PO, (phosphoric acid) with…

A: Given- Volume of  H3PO4 =32.0 mL  Concentration of H3PO4 =0.250M Concentration of NaOH=0.800 M

Q: QUESTION 7 For which of these gases might the van der Waal's factor 'a' be largest: H2(g); H20(g);…

A: Van der Waals factor a is highest for H2O(g).

Q: UV light brings about the homolysis of diatomic chlorine. Draw the curved arrow notation for this…

A: We have chlorine gas in presence of light homolytic cleavage takes place.  Chlorine radical forms.

Q: artaric acid, H2C4H4O6, is a diprotic acid that naturally occurs in the production of apple wine.…

A: Given data,Total volume of wine sample=50mLVolume of NaOH used for…

Q: Write a balanced equation for the formation reaction of each of the following substances: (а)…

A: Dear student, since you have asked multiple questions but according to guidelines we will solve 1st…

Q: What is the ΔHfus of ethanol (46.06 g/mol) which has Kb of 1.99 and freezes at -117.3 °C

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Q: How do I know whether something is a weak acid or weak base? I know there's a list of tables of…

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Q: Write the chemical reactions whose equilibrium constants are K, and K, for imidazole (C, H, N,) and…

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Q: Using the tabulated thermodynamic data, calculate the ΔGo for these reaction: d) Cl2(g) + 2 NO (g)…

A: In this question, we have to calculate ∆G° for the given reaction, Using the tabulated thermodynamic…

Q: Commercial phosphate buffers are sold to maintain fish tanks at a pH of 7. Use a table of acid…

A: Acid dissociation equilibrium constants for H3PO4 are :  Ka1 = 7.2 x 10-3  Ka2 = 6.8 x 10-8  Ka3 =…

Q: What are [H3O+], [OH−], and pOH in a solution with a pH of 9.90?   [H3O+] = ____×10^__ M   [OH−] =…

A: Given data :

Q: as we increase the wavenumber, the penetration A. increases B. does not affect gher the reflective…

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Q: A 48.5 g sample of cis-butenoic acid (C4H6O2; pKa-4.44) is dissolved in 350.0 mL of water. What is…

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

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.978 g is added to a…

A: Answer: In this question first of all we will calculate the moles CO2 consumed and then by the use…

Q: What is the best stereochemical designation for the major product of the following reaction?…

A: Alcohol gives dehydration reactions when they react with a strong acid like H2SO4 or H3PO4 to form…

Q: 1. When potassium dichromate (K2CrO4) is added to a solution containing 0.500 g silver nitrate…

A: Theoretical yield :- The maximum amount of product formed when reactants react according…

Q: Mendeleev's Periodic Table vs. the Modern Periodic Table Mendeleev's Periodic Similarities Modern…

A: Mendeleev's periodic table and Modern periodic table helps us to predict position of an element and…

Q: samples are introduced in a steady stream this introduces the sample in the form a of a fine spray…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Consider the following reaction where Kc = 10.5 at 350 K: 2 CH2CI2 (g) CH4 (g) + CCI4 (g) A reaction…

A: GIVEN:-

Q: What is the molar concentration of Na+ ions in 0.0350 M solutions of the following sodium salts in…

A: Given :- molar concentration of Na3PO4 solution = 0.0350 M  To calculate :- molar concentration of…

Q: The solubility of copper (II) fluoride is 0.075 g/100 mL at 20ºC.  What is the solubility product…

A: Given: Solubility of copper (II) fluoride = 0.075 g/100 mL Molar mass of copper (II) fluoride =…

Q: a) b) NH2 с) Но d) 1. NaH OTf 2. CH212, Cu-Zn, diethyl ether

A: Answer of the question given below,

Q: The activation energy for the gas phase isomerization of cis-cyanostyrene is 193 kJ.…

A: Given: Rate constant (k1) at 678 K = 5.20×10-4/s Rate constant (k2) = 3.97×10-3/s Activation energy…

Q: a) Which is more likely to be paramagnetic, Fe(NO,), or Fe(0H), ? O Fe(OH),+ O Fe(NO2),+ 4- b) Why?…

A: a) in Fe(NO2)64- , unpaired electrons = 0 and in Fe(OH)64-, unpaired electrons = 4

Q: Which of the following normal modes of BF, is NOT IR active? А. В. С. D.

A: The IR inactive mode of BF3 is given below

Q: 1. In the hypochlorite oxidation of cyclohexanol to cyclohexanone, what purpose does the acetie-acid…

A: During the hypochlorite oxidation of cyclohexanol to cyclohexanone the acetic acid acts as a…

Q: Consider the following reaction, and choose all correct answers below. [Select all that apply]…

A: CH4(g) + 2O2(g) ---> CO2(g) + 2 H2O(l) -> when oxidation state incresese that species get…

Q: Consider the reaction N2(g) + 2O2(g)2NO2(g) Use the standard thermodynamic data in the tables…

A:

Q: When 14.7 g of CaCl2(s) (molar mass 111.0 g/mol) was dissolved in water in a constant pressure…

A: We have 14.7 g of CaCl2 dissolved in water in a constant pressure with heat capacity 1168J/°C The…

Q: In using ATR-FTIR, liquid samples need no additional pressure because it is always in optimal…

A: True. Option A is correct.