What is the [H3O+] and the pH of a benzoic acid-benzoate buffer that consists of 0.12 M C6H₂COOH and 0.43 M C6H5COONa? (K₂ of benzoic acid = 6.3 × 10-5) Be sure to report your answer to the correct number of significant figures. [H₂O+]= pH x 10 M

Q: Which of the following forms a 1° alcohol when reacted with Grignard reagent? A. ketone B. carbon…

A:

Q: A mixture of methane and krypton gases, at a total pressure of 859 mm Hg, contains 1.83 grams of…

A: PCH4 = 235 mmHg PKr = 624 mmHg

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A: Here methanol act as solvent.  In substitution reaction solvent have two function.  1. Provide the…

Q: The molar mass of water is 18.01 g/mol. How many grams of water would be in 2.5 moles? Group of…

A: mass of water = 18.01 g/mol Moles of water = 2.5 moles

Q: Please explain why the 2-pentanone cannot be attached in para position when AlCl3 is added???

A: In Friedel crafts acylation of benzene derivatives with strong ring activating groups directs the…

Q: What volume of oxygen gas is required to react completely with 0.750 mol of iron according to the…

A:

Q: A sodium thiosulfate solution can be standardized by using it to titrate the iodine liberated by the…

A: Given :  Volume of sodium thiosulfate solution = 31.47 ml  Mass of K2Cr2O7 in sample = 0.2177 g…

Q: Reaction O CaCO3(s) ⇒ Ca²+ (aq) + CO3²-(aq) AgCl(s) Ag+ (aq) + Cl(aq) ਦੇ AgBr(s) = Ag*(aq) + Br(aq)…

A: Here we have to determine the reaction quotient Q for the CaCO3 from  the initial concentration of…

Q: The condensation reaction in which ethanol is mixed with ethanoic acid produces ethyl ethanoate…

A: Given: Standard enthalpy of formation of C2H5OH = -277.69 kJ/mol Standard enthalpy of formation of…

Q: An over-the-counter medication has 325 mg of its active ingredient per tablet. A lab has 0.5…

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Q: 1.0.183 m MgCl2 2.0.290 mAgCH3COO 3.0.260 m Bas 4.0.490 m Urea (nonelectrolyte) A. Highest boiling…

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Q: Calculate the number of milliliters of 0.429 M Ba(OH)2 required to precipitate all of the Cr³+ ions…

A: we need to calculate the volume using the given equation

Q: many grams of diethyl ether are present if 3.594 mL are present? Provide your answer as a number…

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Q: The Solubility Product Constant for manganese(II) sulfide is 5.1 x 10-15. The maximum amount of…

A: Given data The solubility product constant, Ksp of manganese (II) sulfide is 5.1×10-15  The maximum…

Q: Do What is the concentration of S2- in equilibrium with MnS(s) (Ksp = 4.6 x 10-¹4) and 0.067 M Mn²+?…

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Q: Exercise: calculate the average atomic mass for the naturally occurring Mg element. The isotope…

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Q: How does the direct method for find the enthalpy of formation from the indirect method for finding…

A: Direct determination of enthalpy of formation is carried out using bomb calorimeter.  In bomb…

Q: The following information is given for bismuth at 1 atm: boiling point = 1627 °C melting point = 271…

A: Answer: In this question we have to find out the heat released by 29.1g Bismuth during the process…

Q: 4000 000€ 2000 DOST mr 0001 -8

A: Given is , IR SPECTRA of unknown compund, Find out the unknown compund from given choices?

Q: A solution contains 8.28x10-3 M potassium hydroxide and 7.67x10-³ M potassium sulfide. Solid iron…

A: In the given question we have to calculate the concentration of sulfide ion when hydroxide ion…

Q: What would the KMnO4 reaction be?

A: In cold alkaline solution KMnO4 reacts with alkene to produce cis-1,2-diol.  The reaction is given…

Q: A 20.8 mL of EDTA solution ( 2.0M) was used in a titration to determine the hardness of the water.…

A: Here given that,  Volume of EDTA used  = 20.8 mL  Molarity of EDTA  = 2.0  M  Volume of water sample…

Q: Which of the following gas samples would have the largest volume, if all samples are at the same…

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Q: What is the key bond being formed in a Grignard reaction? A. Carbon-Magnesium B. Magnesium-Bromine…

A: The grignard reaction have one of the best method to forming C-C bond . Hence correct option is…

Q: For the titration of 10.0 mL 0.10 M glycine (Ka1 = 4.5x10-3; Ka2 = 1.7x10-10) with 0.10 M NaOH,…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: The average person's step covers 2.5 feet. Some health experts recommend getting 10,000 steps a day.…

A: First we need to calculate the distance covered in feet in 10,000 steps using the average step…

Q: At what pressure in atm does ethane (C₂H) have a density of 37.2 g/L at 82.0 °C?

A: Given - Density=37.2g/L  Temperature=82.0°C = 82 + 273 = 355 K Pressure=?

Q: Draw the major product of this reaction. Include stereochemistry if applicable. Ignore byproducts. G…

A: The answer to the following question is-

Q: The gas in a 250.0 mL piston experiences a change in pressure from 1.00 atm to 3.20 atm. What is the…

A: Here given----- Initial Pressure (P1) = 1 atm Final Pressure (P2) = 3.2 atm Initial Volume (V1) =…

Q: A chamber contains equal molar amounts of He, Ne, Ar, and Kr. If the total chamber pressure is 1…

A:

Q: The nonvolatile, nonelectrolyte aspirin, C9Hg04 (180.1 g/mol), is soluble in chloroform, CHCI 3. How…

A: Given - molar mass of aspirin = 180.1 g/mol             Osmotic pressure = 8.21 atm…

Q: Match the following aqueous solutions with the appropriate letter from the column on the right. A.…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: 1. A 50 mL of 0.005 M HCl sample is titrated with 0.010 M NaOH. Find the pH of the solution at…

A: Note- Since the given question is a multipart question, hence I solved first three subparts…

Q: How many possible stereoisomers does menthol have?

A: The structure of menthol is as follows:

Q: How many milliliters of an aqueous solution of 0.215 M potassium phosphate is needed to obtain 12.6…

A:

Q: What is the elements, atomic mass, number of atoms, subtotal and composition? 1. Compound:…

A: Following are the detailed calculation of elements, atomic mass ,no. of atoms ,subtotal and % of…

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: Given, 2HNO2(g) + O2(g) ----> 2HNO3(g) Standard enthalpy of the reaction (∆H°rxn) = ? Note:…

Q: aqueous hydrochloric acid is added to the reaction and a gas is observed. What is the composition of…

A:

Q: 4. Suppose the data shown below are obtained for an enzyme catalyzed reaction. [S] (MM) v…

A: The equation is in the straight line, y=mx+b, form. So, we need to plot 1/V on y-axis and 1/[S] on…

Q: Provide the quantum numbers and related information for the following orbital, 3d. What is the…

A: First we have to write the possible orbitals for n = 3 shell.  Then using the maximum number of…

Q: Consider kinetic data for a certain reaction: Time (s) 0 1 2 3 4 5 a. 1.7 Find the order of reaction…

A: The Concept used in this question is from CHEMICAL KINETICS of physical Chemistry.  1) Order of…

Q: Give the correct stereochemical indicator for the following alkene: None required Z Submit Answer…

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Q: Calculate the molar enthalpy change for two reactions and use Hess’s law to determine the enthalpy…

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Q: Which of the following electron configurations corresponds to an atom in the excited state?…

A: In Excited state of an atom and electron jumps from lower energy shell to higher energy shell from…

Q: Write the equilibrium constant expression, K, for the following reaction. Please enter the compounds…

A: Equilibrium constant is the ratio of  product of concentration of products raised to their…

Q: A nickel at 30 °C is dropped into a glass of 15.0 g soda at 3.0 °C, if the heat capacity of the…

A: Given: Initial temperature of nickel = 30 °C = 273+30=303 K Initial temperature of soda = 3 °C =…

Q: Write the empirical formula for at least four ionic compounds that could be for , Fe2+, 1 Fe³+ OH,…

A: Empirical formula of a compound is a simplest formula of the compound

Q: What is the energy change when the temperature of 13.4 grams of gaseous hydrogen is decreased from…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: الله 88 CO H₂ H₂ H₂ NO: H₂ 100 MHz COSY of 1,3-dinitrobenzene. At the left-hand edge and at the top…

A: In 1H NMR spectrum one frequency axis and one intensity axis is present.  But in 2 dimensional…

Q: Convert the following 3.0 x 10^-12 g/cm^3 = ng/m^3

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

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.