11 (a) Define a buffer solution (b) What are the components of (i) an acidic buffer ? (ii) a basic buffer ?

Q: Predict two likely products of the following reaction. CH3 Br NaOC(CH3)3

A: In this question we have to tell the product of the reaction.

Q: Why must solutions with high concentrations be diluted prior to analysis via Beer's Law? A. The…

A: Answer= option 1 (the relation between absorbance and concentration not linear at high…

Q: What is the identity of the sample?

A: Here we are required to identify the sample

Q: give the oxi dation and reduction half- reactions that have talden pla ce ins Dioxovanadiumev] t…

A: A neutral atom can gain electron and form the negatively charged ion while a cation gains electron…

Q: Suppose that 3.50 g of potassium chromate is added to 75.0 ml of 0.250 M magnesium nitrate. 1. What…

A: Here we are required to find the molar concentration of potassium chromate and mass of potassium…

Q: Which are TRUE for the use of indicators with dichromate? Dichromate is orange and changes color to…

A: Please find the below attachment.   Please rate if it is helpful for you.   Thank you.

Q: An acid is: A base is: (b) Explain the difference between: (i) a strong acid and weak acid and (ii)…

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Q: 4. Give the function of the following parts of the spectrophotometer. b. Collimator C. Slit d.…

A: (a)Collimator-It is a device for changing the diverging light or other radiation from a point source…

Q: Sulfuric acid is essential to dozens of important industries from steelmaking to plastics and…

A: We will first calculate the moles of SO2 produced. From that only we can calculate the mass of…

Q: rush pls answer will upvote!!

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Q: 1, which is the acid?

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Q: 1e) Carbon 14 (C-14) is an isotope of carbon that contains? More protons than Carbon-12. More…

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Q: 2 HBr(g)= H2(g) + Br2(g) -12. What is/are dominant in the reaction which is at equilibrium and with…

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

Q: prepare the buffer in the previous problem, a total volume of 500 mL is required. The stock solution…

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Q: 5. a) How many stereocenters does this compound have? CH¸Br b). How many stereoisomers are possible…

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Q: A rock formed with 1000 atoms of a radioactive parent element, but only contains 250 radioactive…

A: Given, A rock formed with 1000 atoms of a radioactive parent element, but only contains 250…

Q: an analytical separation technique based in the large differences in solubility between interference…

A: Correct answer is (4)✓ Separation by precipitation.Separations by precipitation require large…

Q: Categorized the H+, Cl-, O2, Ba2, CH4, and CS2 separately if they are a CATION, an ANION, or…

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Q: Draw a plausible mechanism for the reaction shown below. Determine the major product and provide…

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Q: Question 9 How do you call the redox tritarion the used KMN04 as titrant? O titrimetry…

A: The redox titration, where KMnO4 used as titrant, is called :- Permanganimetry .

Q: Question 1 Which of the following statements is true about the structure of benzene? A. six atomic…

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Q: Question 6 The best indicator in redox titration are those which udergoes Redox reaction in…

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Q: Find the ΔH (in kilojoules) for the reaction below, given the following reactions and subsequent ΔH…

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Q: What is the OH⁻ concentration in this solution 1.05 M C₅H₅N?

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Q: What is the geometry of the synthesized thermochromic material at low temperatures? a. Octahedral O…

A: The geometry of the synthesized thermochromic material at low temperature is Square planar.…

Q: In this activity you will use the virtual lab to determine the concentration of a strong monoprotic…

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Q: Which band consists of bonding molecular orbitals?

A: Band A has filled molecular orbitals, so the electrons are transferred from the band to the upper…

Q: Please solve in 30 minute by applying the enthalpy changes to these reactions: NO+O3 → NO2+ O2…

A: We have to arrange the given equation so that we get the require equation. The calculation is shown…

Q: A 40.00 ml sample of 0.1000 M diprotic malonic acid is titrated with 0.0900 M KOH. What volume KOH…

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Q: . A barometer reading shows that air pressure is 750 mm Hg. Is the air pressure above or below…

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Q: Question 8 Which titrimetry is refrerred to by the following v Uses permangante as its Titrant A.…

A: Iodimetry titration uses iodide(I-) which is reducing agent. Starch is used as indicatore because I2…

Q: Explain the substitution reactions below

A: In this questions, we will explained the substitution reactions for all three given reactions.  You…

Q: Determine if the synthesis of sulfuric acid is a spontaneous reaction at 25°C. Chemical Equation: S…

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Q: Which are true for polarography? Polarography is amperometry conducted with a dropping Hg electrode.…

A: Option C is true Statement 4 is true as we use the dropping mercury electrode as the working…

Q: The Ecell of a reaction was found to be +0.78 V. What is the AG° of the reaction? ne = 1 mol O…

A: Redox reaction are those in which both oxidation and reduction reaction occurs simultaneously.

Q: 1) 500 ml of .50 M NaC1 from 2.0 M original stock solution?   2) 2.0 L of .20M MgS04 from .50 M…

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Q: A sample of krypton gas occupies 95.0 mL at 0.500 atm. If the temperature remained constant, what…

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Q: The volume of a sample of gas is 750 mL at 60 degree C and 0.7 atm. At what temperature will the…

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Q: Show all pertinent calculations. Express final answer up to 4 decimal places I. STANDARDIZE THE…

A: Given: weight of KIO3 = 0.5325 g Volume of KIO3 =250 mL To complete the following table: Standardize…

Q: Br2(g) 13. At 900 K, the following reaction 2 SO2 + O2 has Kp = 0.34: In an equilibrium mixture, the…

A: At equilibrium rate of forward reaction is equal to rate of backward reaction.

Q: In the Iron REDOX titration, the specific which specific indicator \ produces soluble red-colored…

A: Question-5  Answer - thiocyanate  In redox titration of iron , thiocyanate, (SCN–) forms a soluble…

Q: Based on their formulas, classify each of the following in the solid state as a molecular, ionic,…

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Q: ph. Plot a graph containing a title and labels for both of the axis. Three readings were taken for…

A: The Bradford assay principle is depends on the maximum absorbance for acidic solution. The shift is…

Q: 8. continued Compound X, C41HsaF2, reacts with excess Ha/Pd to give a CaiHraF2 compound. How many…

A: The given problems are related to the concepts of alkenes topic in organic chemistry.

Q: 2. Calculate reaction AH°rxn and reaction AU°rxn for the total oxidation of benzene. Use the stable…

A: The complete oxidation of benzene gives Carbon dioxide gas and liquid water as -  C6H6(l) + 7.5O2(g)…

Q: In this activity, you will use the virtual lab to determine the concentration of a strong monoprotic…

A: Given: Initial volume of NaOH = 50.00 mL Final reading of burette = 48.240 mL Volume of solution at…

Q: Determine if the formation of acid rain is a spontaneous reaction at 50°c Chemical Equation: NO2 +…

A: Recall the given chemical equation,                         NO2  +  H2O  →  HNO2  +  HNO3Here, we…

Q: What are 2-3 examples of how equilibrium applies to everyday life. Write the examples in detail as…

A: 1) An example of equilibrium in everyday life is a book on a table at rest. There are two forces…

Q: Question 25 Which of the following amino acids is a secondary amine? A. proline B. glutamine C.…

A: The given problem related to the aminoacids topic.

Q: What is the standard enthalpy change (in kJ) for this reaction? Mg(s) + 2HCI(aq) --> MgCl2(aq) +…

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