What is the pH of an acetic acid/sodium acetate buffer with [CH3CO2H] = 0.850 M and [CH3CO2-] = 0.450 M? Ka for acetic acid = 1.8×10-5 pH =

Q: If the concentration of an aqueous solution was determined to be 1.3 molal, what is the mole…

A: Given , Concentration of an aqueous solution is 1.3 molal . Atomic weight of H= 1g/mol…

Q: A reaction follows the given chemical equation. The reaction rates at different concentrations of A…

A: Given A (g) + 2B (g) →2Z (g) Rate = k[A]a [B]b Where power a and b are coefficients of order of [A]…

Q: Radioactive Radon-222 gas (222Rn) occurs naturally as a product of uranium decay. The half-life of…

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Q: Caffeine, a molecule found in coffee, tea, and certain soft drinks, contains C, H, O, and N.…

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Q: Select the major product(s) of the following reaction. If you expect two or more products to form in…

A: We know that an alkene reacts with the osmium tetraoxide (OsO4) in presence of hydrogen sulfide…

Q: Which of the following compounds does not have a functional group?     Hexanoic acid…

A: IUPAC nomenclature is used for naming the organic compound as recommended by international union of…

Q: A sealed container holding 0.0255 L of an ideal gas at 0.987 atm and 75 °C is placed into a…

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Q: true or false you cannot oxidize a tertiary alcohol.

A: Alcohols may be organized to give aldehydes, ketones, and carboxylic acids.

Q: A 1.3685-g a chloride-containing sample was analyzed by precipitating 0.4713 grams of AgCl (MW =…

A: Mass of sample = 1.3685 gram  Precipitation = 0.4713 gram To find = mass percentage of chloride

Q: Which of the following quantum numbers describes the shape of an orbital? O Schrödinger quantum…

A: There are 4 different quantum numbers to describe the various aspects of an electron like position,…

Q: 2. 1st ionisation energy (kJ/mol) First lonisation Energy of the Group 1 elements 600 500 400 300 4…

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Q: Which statement is true about the 2nd reaction shown? 1) 2 H₂(g) + O₂(g) = 2 H₂O(g) K= 3 × 1081 x 2)…

A: Which statement is true for the second reaction shown :  2) 2CO2(g) <---> 2CO(g) + O2(g) ; K =…

Q: Round off your final answers in 2 decimal places. A container holds three gasses: oxygen, carbon…

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Q: 2. 2.00G of aluminum solid is added to a 100.0 mL of 2.5 M aqueous solution of hydrobromic acid. 2a.…

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Q: 1. Which of the following is not a component of a nucleic acid? a. phosphate group b. Amino acid…

A: Nucleic acid is a polymer of nucleotides which stores genetic information .  Note : I am liable to…

Q: a 135 m solution of an unknown weak acid Hx has a PH of 4.65. a.) write the equation for the…

A: Weak acids are those acids which dissociates partially.we can calculate Ka by using ice table.

Q: In order to determine the order of a specific reactant, you must do all of the following except…

A: We know that the Order of Reaction refers to the power dependence of the rate on the concentration…

Q: Calculate the pH of a 0.060 M solution of benzoic acid (C6H5CO2H) given that Ka = 6.3×10-5 for the…

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Q: A saturated solution of Ca(OH)2 at 20 °C has a concentration of 0.0233 M. What is the Ksp for…

A: The solubility product constant can be determined by the molar solubility of the compound. It is…

Q: F Br Provide a name for each of the following molecules. Don't forget stereochemistry in the name.…

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Q: A buffer is prepared by adding 50.0mL of 0.15M HNO3(aq) to 100.0mL of 0.12M NaHCOO(aq) (sodium…

A: A buffer solution is prepared by : Volume of aq. HNO3 = 50.0 ml Molarity of aq. HNO3 = 0.15 M Volume…

Q: Methanol CH3OH, combusts in air to produce carbon dioxide and water vapor according to the following…

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Q: Use average bond enthalpies (look in intstructor add-ons) to calculate the enthalpy change (in kJ)…

A: 3) Given, CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) Enthalpy change for the reaction (∆Hrxn) = ? Note: bond…

Q: 1-The work done in blowing a soap bubble of radius R is W₁ and that to a radius 3R is W2. the ratio…

A: The work done in blowing a soap bubble with radius R can be written as: W=8πR2T            (1) Where…

Q: What is the pH of 0.15 M acetic acid to 1.00 L of which 2.70 g of sodium acetate NaCH3CO2, has been…

A: Molarity of acid = 0.15 M  Volume of sodium acetate = 1.00 L  Mass of sodium acetate = 2.70 g  Ka of…

Q: For the reaction: C(s) + CO2 (g) 2CO (g) .Drive the relationship between Kp and Kc. a. (Kp=KcRT2) b.…

A: C(s) + CO2(g) ....> 2CO(g)  Kc = [CO]2/[CO2] In equillibrium constant expression, concentration…

Q: Write each question in scientific notation:   a. 4100000   4.1×1074.1×107 0.41×1060.41×106…

A: We are either given the whose number or in decimal form in each case and we have to convert them to…

Q: A vacuum pump is capable of evacuating a vessel to a pressure of 5.0 x10-3 mmHg. What is the…

A: Given pressure: 5.0 x 10-3 mmHg We have to find the pressure in atm.

Q: An empty beaker has a measured mass of 29.456 g. When some salt is added to the beaker, the combined…

A: Mass of empty beaker = 29.456 g  Combined mass when salt is added to beaker = 36.176 g  Mass of salt…

Q: Question 17 Which of the following solutions will have the lowest freezing point? O 0.010 m Li2SO4 O…

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Q: Describe how the adsorption process assists in the removal of hazardous gaseous from confined space.…

A: Adsorption is the surface dependent phenomenon in which one substance concentration is attach or get…

Q: Draw the structure of the monomer from which the polymer can be synthesized.

A: A polymer is a compound that is formed by the repetition of a monomer. The polymer can have one or…

Q: has been used to adsorp NH3 gas. Predict what would happen to the NH3 adsorption efficiency if the:…

A: Adsorption process is the accumulation of adsorbate on the surface of adsorbent. Here, ammonia is…

Q: 5. How many equivalent orbitals are involved in each of the following sets of hybrid orbitals? a.…

A: 5. Hybridisation is the process in which atomic orbitals with different energy and shape combine to…

Q: Explain in a sentence or two why the following reaction is not likely to occur: NO₂ NO₂ CH3CI AICI 3…

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Q: calculate solubility of magnesium hydroxide Mg(OH)2 (in g/L) in a solution buffered at pH 8.8 ?…

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Q: How many of the following pairs (Name/Formula) are INCORRECT? < hydrosulfuric acid / H₂S(aq) nitrous…

A: In this question we have to Tell no. Of compounds which have given wrong name.

Q: A sample of helium at 20 °C occupies a volume of 3.09 L at a pressure of 8.12 atm.. What volume does…

A: Given, Initially  Pressure (P1) = 8.12 atm Volume (V1) = 3.09 L Later Pressure (P2) = 7.48 atm…

Q: In the fluorination reaction of butadiene, the butadiene is adsorbed onto a catalyst C. To test the…

A: We are given pressure(kPa) and volume(cm3) data for the adsorption of butadiene on the surface of…

Q: Given the tripeptide Glutamic acid-Methionine-Aspartic acid, what is the net charge of this…

A: Here we are required to find the net charge of tri peptide

Q: estion 18 The relative solubility of solute in both the phases determines the Rate of disappearance…

A: :Mobile phase is a substance that can move through carrier.

Q: (3) These natural compounds will have different numbers of 1H-NMR signals in different NMR solvents…

A: Deuterated chloroform (CDCl3) and methanol-d4 (CD3OD) both are widely used solvents in 1H-NMR…

Q: The half life of radium-226, the first radioactive element discovered, is 1,620 years. If a sample…

A: Radioactive reactions are of first order. The relationship between half life t1/2 and rate constant…

Q: hydrophobic effect

A: Hydrophobic effect: The hydrophobic effect is the tendency of non-polar molecules and molecular…

Q: Fe3Br8 – an important source of potassium bromide is produced through the following two-stage…

A: The two-stage reaction for the formation of Fe3Br8 is: Stage 1: 3 Fe + 3 Br2 → 3 FeBr2  Stage 2: 3…

Q: Suppose an old wooden boat, held together with iron screws, has a bronze propeller (bronze is an…

A: Cu and Sn is less reactive in comparison to Fe. So, oxidation of Fe takes place.

Q: 8. Which of the following is the strongest oxidizing agent. (E Fe/Fe=0.77, 1200/1 -0.54,Cu²/Cu-0.34,…

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Q: element A? Answer questions 6 and 7 on the blank sheet of paper provided. 6. Draw the ground state…

A: Potassium is a chemical element with the symbol K and atomic number 19. Potassium (K), element of…

Q: Use and interconvert energy units. A tank contains 176 gallons of oil. This is the equivalent of…

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Q: 2.00g of aluminum solid is added to a 100.0 mL of 2.5 M aqueous solution of hydrobromic acid.…

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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.