what is the pH of a buffer solution. that containe ol0om HE amd o:120 M Nef 2 The ka of HE is 3.5X164

Q: a. Calculate the standard cell potential for a battery based on the following reactions= Sn2+ + 2e…

A:

Q: What is the volume of 0.260 mol of carbon dioxide gas at STP? 333 L 5.82 L 2.96 L 170. L

A: Volume at stp is equal to mole multiply by standard volume (22.4L)

Q: Chemistry What is the percentage purity of a sample of impure oxalic acid dihydrate if a sample…

A:

Q: John is creating a 625 mM HEPES-KOH buffer in 250 mL volume at a pH of 8.0. what volume (in…

A: Here we are required to find the volume of 5M KOH needed to prepare HEPES buffer.

Q: Question 16 For the compound Name the compound I dont fy Are goo each chiral center metric is omors…

A: In this question, we will write the name of compound ( using IUPAC name not common name ). We also…

Q: Question: 2. In the electrolysis of molten Bal2 a. The Ba" ions migrate towards the cathode b. The…

A:

Q: Click the "draw structure" button to launch the drawing utilit Draw the products formed in the…

A:

Q: Question 9 The volume of a sample of oxygen is 3.6 L when the pressure is 7.2 atm and the…

A: According to the our policy we should solve only one question (if any subparts present then first…

Q: What [H2C03] needs to be added to 0.0250M NaHCO3 to obtain a buffer solution with a pH of 7.0?

A:

Q: Predict how the equilibrium will change with the reaction below for the following stresses FESCN2+…

A:

Q: Radon, one of the noble gases, is a decay product of uranium and is itself radioactive, with a…

A:

Q: Explain why and agricultural drainage would contain high concentrations of phosphate  ions.

A: Introduction: Agriculture drainage is a necessary system, which helps to remove excess irrigation or…

Q: Potassium chloride is used as a substitute for sodium chloride for individuals with high blood…

A: The reactant that is completely consumed in a chemical reaction is called a limiting reactant.  The…

Q: Question I1 For the reaction at a5 c:caC"F"|Fe Determine E° De ter mine AG° De termine K

A:

Q: Suppose, in the saturated solution of Ca(OH)2 prepared by the TA, some of the dissolved Ca2+ jons…

A: Ksp is the solubility product is the products of concentration of aqueous species of the salt.

Q: er, answer the following question. 128 grams of KBr, and combine it, in a , with water at a…

A: From the graph , At 60 °c,  The solubility of KBr is 86 g KBr/100 g water

Q: etermine the molecular form a. Benzoyl peroxide (the e b. Ibuprofen by mass com approximately 206…

A:

Q: The elementary reaction 2NO2 (g) → 2NO (g) + O2 (g) is second order in NO2 and the rate constant at…

A:

Q: Part D NH H,N-CH-COOH Hy, Pd CH,CH,CONH, Draw the missing molecule on the canvas by choosing buttons…

A:

Q: QUESTION 1 Provide reagents for this transformation of starting compound. More than one step is…

A:

Q: What concentration of NaF do you need to add to a 0.15M HF solution to get a buffer solution pH of…

A:

Q: What mass of hydrogen peroxide must decompose to produce 65.88 g of H,O? H2O2→02+H,O

A:

Q: For a lab report, suppose you are asked to calkilate the freezing point of an aqueois 0.0sd-m Cacl,…

A: Given, Suppose you are asked to calculate the freezing point of an aqueous solution of 0.050 m CaCl2…

Q: The nucleus of an isotope, mass 203.3168 amu, contains 81 protons and 121 neutrons. Calculate the…

A: ★ Answer : Binding energy of the nucleus will be 2.99 × 108 eV.  ★ Solution :

Q: The average rate of disappearance of ozone in the following reaction is found to be 7.01 × 10–3…

A: Given rate of disappearance of ozone is 7.01 × 10–3 atm/s.

Q: Calculate the volume of liquid in the NMR tube sketched below. Give your answer in microliters, and…

A:

Q: Question 11 How many fluoride atoms are in the formula unit for capper(Il) fluoride?

A: Given molecules copper(II) fluoride . The chemical formula for copper(II) fluoride is CuF2

Q: What is the product of the reaction P4O6 + H2O? A) H3PO4 B) H2PO4 C) H3PO3 D) H2PO3 E) H2P4O7

A: Which one of the following is correct answer

Q: 1. Give the structure of the following esters: a. Pentyl acetate b. Ethyl cinnamate c. Amyl…

A: Ester can be represented by the formula RCOOR′ and ester formed by the reaction between acid and an…

Q: At 25 °C, K. = 0.145 for the following reaction in the solvent CCI4. 2BrCI Br2 + Cl2 If the initial…

A:

Q: 208 missing product in the following nuclear reactions. -> 208 82Pb + ? b. 263 106Sg→ 42He +? С. ?…

A:

Q: Hydrogen and iodine gas react to produce hydrogen iodide gas. What is the value of Keg for this…

A: Given: H2=0.40 MI2=0.038 MHI=0.55 M

Q: A 3.50 L sample of a gas at a pressure of 1.75 atm is compressed to 2.00 L at a constant…

A:

Q: 1. Recall    that    pH    is    shorthand    for    –log[H+]    and    be    aware    that…

A: a)                               If [H+] = 1 M  Then, log[H+] = log (1) = 0            and pH = -…

Q: Phosphate that is added to our drinking water forms a protective layer of lead phosphate on the…

A: Solution: 1 ppb = 1 microgram / L So, 39 ppb lead = 39 microgram/L                           = 39 x…

Q: For Cu concentration cells below, calculate Ecell using Nernst equation. Cu/Cu2+ (E°= +0.34 V)…

A:

Q: In the galvanic cell using the redox reaction below, the oxidation half reaction is Zn (s) + Cu2+…

A:

Q: What [NH3] needs to be added to 0.0010M NH4Cl to obtain a buffer solution with pH of a 7.3?

A: pH of buffer solution is calculated by using Henderson Hassel balch equation

Q: What would the potential of a standard hydrogen electrode (S.H.E.) be under the following…

A:

Q: The hydrophobic effect is entropic because: O A) it is an attraction between hydrophobic groups…

A: Hydrophobic interaction is the force of interaction between water and water repulsive molecules.

Q: vas seconds ago E E Image options Replace image- . 4 6. A protein molecule composed of a sequence of…

A: Only b

Q: A galvanic cell was constructed with a nickel electrode that was dipped into 1.1 M NiSO4 solution…

A:

Q: Write the net-ionic, acid-base reactions that would occur in order to dissolve the precipitate…

A:

Q: What is the equilibrium constant for a reaction at 25 °C. The value of AG° is -68.5 kJ/mol. O more…

A:

Q: 2. Name the following drugs and name their pharmacological groups. H;CO HCI H3CO LOCH3 CH3 NH2 1)…

A:

Q: A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is  56.54…

A: The given mass=56.54g Number of cells = 105 cells

Q: Show Attempt History Current Attempt in Progress * Your answer is incorrect. The value of Kp for the…

A: Given:                                    Kb = 5.6 x 10-10

Q: h. 2. но он 1. Brz. CH,OH 2. K OC(CH,) H,C 3. HBr, ROOR H,C CH, Add the missing substituents Br Br…

A: In this questions, we will write the missing reagents ( in first part ) and missing products ( in…

Q: why liquids like mineral oil or acetone are not good at dissolving salts, or why mineral oil and…

A: This is because of the fact  that mineral oil are aprotic in nature

Q: What is the new volume when a gas’s pressure was changed from 320.0mmHg to 160.0 mmHg and it’s…

A:

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.