Part A A 0.22 - mol sample of a weak acid with an unknown pK, was combined with 10.0 mL of 3.10 M KOH and the resulting solution was diluted to 1.500 L. The measured pH of the solution was 3.85. What is the pK, of the weak acid? Express your answer using two decimal places. pK =

Q: Phosphoric acid is a triprotic acid (Ka1 = 6.9 x 10-3, K2 = 6.2 × 10-8, and K,3 = 4.8 × 10-13). To…

A:

Q: What is/are the major product/s of the reaction to the photo given? Multiple answers are accepted.

A:

Q: Given the following data, 2+ 2H9²*(aq) + 2e¯→ Hg,“(aq) E = 0.92 V 2+ Hg,"(aq) + 2e→ 2Hg(1) E = 0.85…

A:

Q: Exercise 30. Identify the reagents (a-h) needed to carry out each reaction. Br (a) (b) OTS (c) (d)…

A: Identify the reagents needed to carry out the following conversions

Q: Give the product of the following reaction sequence: tof H EC: Na+ H2 NBS OK Br DMSO Lindlar's…

A:

Q: A chemical engineer is studying the following reaction: 4 HCl(9)+O,(9) → 2 H,0(9)+2Cl,(9) At the…

A: Equilibrium constant ( K) and reaction quotient (Q ) is the ratio of concentration of products to…

Q: 3.The following reaction occurs spontaneously.             Cu2+(aq)  +  Zn(s)  -->  Cu(s)  +…

A: Oxidation is the increase in the oxidation number.  Reduction is the decrease in oxidation number.

Q: What is the partial pressure of carbon dioxide in a container that holds 5 moles of carbon dioxide,…

A:

Q: 2. Solid lead(II) cyanide is slowly added to 125 mL of a 0.497 M ammonium phosphate solution until…

A:

Q: Intermolecular Forces 1. Encircle/Write the species that can form hydrogen bonds witn water?…

A: There are various types of intermolecular forces present between molecules such as hydrogen bonding,…

Q: solubility of a gas in liquid? How? Expound your answer.

A: Yes ,Solubility of gas in liquid is affected by pessure. Solubility is increases by increasing…

Q: g) + 2CO(g)→20O2(g) change when the pressures of the gases ar atm; CO = 0.30 atm; CO2 = 0.45 atm www…

A: Given, □G° = (Total □Gf)products - (Total □Gf)reactant = [2×(-394.359)] - [2 × (-137.168)] =…

Q: 3. A 5-peso coin was placed on top of a watch glass and their mass was recorded as 45.68 g. The mass…

A: Initially, mass = 45.68 g Empty watch glass mass = 39.86 g

Q: A sample of biogas contains 10.75mol ethane, 6.35mol pentane and 2.89mol propane. If the total…

A:

Q: 2.3. Find the enthalpy change for the reaction CS2(1) + 3 02(g) → CO2(g) + 2 SO2(g) When: C(s) + 2…

A:

Q: 2.2. Find the enthalpy change for the reaction CS2(1) + 3 02(g) → CO2(g) + 2 SO2(g)

A:

Q: Complete the concept map below by filling up the boxes with the appropriate concepts using the…

A: We have to complete the given empty boxes. We know that the solution has two components, those are…

Q: he standard entropy change, ancwor to ono ocimal nlace

A:

Q: 1. Show the electron configuration of the following elements below and underline the electrons that…

A:

Q: Question 12 Which of the following has the lowest rate of reaction? O H2SO 4(aq) + BaSO 4(aq) 2H200…

A:

Q: OWhy some of alcohols are soluble in water and some o them not? pCompare the solubility of phenol in…

A: (1) There are different type of alcohols are present which mainly contain a hydrocarbon chain with…

Q: E For keyboard navigation, use the up/down arrow keys to seleo + AB(g) - AB(g) + ABC(g) at a similar…

A: As we know,  rate of reaction is depends upon activation energy. Lower is the activation energy,…

Q: Which condition will result in faster ring-opening kinetics? Briefly rationalize your answer.

A: In the given problem we need to discuss in which condition (in the presence of TBD or DBU) the ring…

Q: Green apple have higher pH than egg. O True False To measure the moisture content of cereals we use…

A: Acid is substance which release hydrogen ions and base is substance which release hydroxyl ions.

Q: Would pressure have an effect on the solubility of a gas in liquid? How?

A: Solubility is the amount of solute dissolved in solvent.

Q: (10) Consider the "unimolecular" isomerization of methylcyanide: CH;NC(g) → CH3CN(g). The Arrhenius…

A:

Q: In condensed structural formulas, the amide group in an amide produced from a carboxylic acid and a…

A: Amide undergoes base hydrolysis with heat produce a carboxylate salt and ammonia as main product.

Q: Phenol (CoH5OH) is a weak acid used as a general disinfectant and in the manufacture of plastics.…

A: Phenol is a weak acid and do not undergo complete ionisation in solution.

Q: Which process do you choose if the copper ore includes a remarkable amount of precious metals? Why?…

A: Copper has an important use in our daily lives for thousands of years. It is a metal found in its…

Q: 7. Calculate the standard reduction potential and the standard free-energy change for each of the…

A: In an electrochemical cell, there are two electrodes at which oxidation and reduction takes place.…

Q: Compute for the pH and generate a titration curve for the titration of 50.0 mL 0.0500 M NaOH with…

A:

Q: What are the reagents used to precipitate the alkaline-earth group.

A: Alkaline earth metals are group second metals mainly contain Beryllium Be, Magnesium Mg, Calcium Ca,…

Q: Calculate pH at 0 mL NaOH added, 6.5 mL NaOH added, 14.25 mL added, and 23.50 mL added. 120 mL of…

A: we need to calculate the pH of solution

Q: 4. Suppose, after entering the body, a substance is eliminated at a rate that can be modelled by the…

A:

Q: Calculate the percentage of MnO2 in a mineral specimen  if the I2 liberated by a 0.1267-g sample in…

A: Given data :

Q: For a 8.24 gram sample of ice at -67.8°C , what is the minimum amount of heat (in kJ) needed to…

A:

Q: 3. Predict the products for the following reactions, indicate major and minor where applicable. MgBr…

A:

Q: naction quotient Rc and the equi librium cons tant follo wing Write the Ke. for each the reactions.…

A: Given :

Q: Fructose, C6H1206(S), consists of 5 C-C single bonds, 7 C-O bonds, 7 C-H bonds, and 5 O-H bonds with…

A: Given data,Bond energy of C-C=348 kJ/molBond energy of C-O=360 kJ/molBond energy of C-H=412…

Q: Determine el nombre IUPAC para los siguientes compuestos: Br HO NH2 CH3 CI Br OH

A: The IUPAC name of the following compounds are:

Q: Part A A 100.0 ml sample of 0.18 M HCIO, is titrated with 0.27 M LIOH. Determine the pH of the…

A:

Q: Calculate the pH when 200.00 mL of 0.020 M NH3 is titrated with a.) 25.0 mL of 0.050 M HI, b.) 80.0…

A:

Q: necessary for all mammals because it aids in DNA repair and cell signaling. The pH of a 0.439 M…

A: Given,  Concentration(C) = 0.439 M pH = 2.607  Using the formula of weak acid pH = 1/2(pKa - logC)…

Q: How does the presence and absence of magnesium and calcium ions in water have an impact on water's…

A: As this water moves through soil and rock, it dissolves very small amounts of minerals and holds…

Q: The expression for the solubility-product constant for zirconium fluoride, ZrF4, is Group of answer…

A: Solubility product constant (Ksp) is equilibrium constant for a solid substance dissolving in an…

Q: 1. Calculate the volume in milliliters of a 5.36/molL silver nitrate solution that contains 275.mmol…

A:

Q: j To which side must electrons be added? 3 H20 + CIO3 → CI" + 6 OH O left right

A: Which side electron added ?

Q: can someone help me mark up this IR spectra to figure out all the bonds

A: A question based on IR spectroscopy that is to be accomplished.

Q: TUTOR Calculate the Concentration of a Species Using Cell Voltage When [Cu2+] = 1.39 M, the observed…

A:

Q: Step 3 How many moles of Fe* and SCN" remain in solution at equilibrium? Use the results of Steps 1…

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.