Q: Example 1: If a 2.0 L sample of air is collected at 298K, but its temperature falls to -25°C, what…
A: Charle's law states that volume of a gas is directly proportional to temperature of a gas at…
Q: Calculate the [H*] and [OH-] of a solution at 25°C, if pH = 3.24. (answer in scientific notation)…
A: The correct answer is given below
Q: 20. What is the equivalent weight of a certain organic acid if 44.00 mL of NaOH solution (1 mL =…
A: Given data Volume of NaOH used = 44.00 mL for mass of acid = 519.2 mg and 1 mL NaOH = 10.01 grams…
Q: но ZI -СН3
A:
Q: 12) For the reaction: Br,(g) + Cl₂(g) = 2 BrCl(g), Kc = 7.20 at 200°C. If a reaction vessel is…
A:
Q: What is the pressure in the gas bulb connected to the mercury manometer shown in the diagram if the…
A: Here, we have to find the pressure in the gas bulb connected to the mercury manometer according to…
Q: For the aqueous [Ni(NH3 )6]2+ complex Kf=5.50 x 108 at 25C . Suppose equal volumes of 0.0024 M…
A: Given : Kf = 5.50 x 108 Concentration of Ni(NO3)2 = 0.0024 M Concentration of NH3 = 0.94 M
Q: QUESTION 12 An electrochemical reaction has a standard cell potential of 1.32 V. If 1 moles of…
A:
Q: QUESTION 8 Calculate the standard cell potential for the following electrochemical cell. Mn 2+ (aq)…
A: The standard cell potential for the above electro chemical cell is given below
Q: Calculate the [OH-] of a solution at 25°C, if [H] = 9.6 x 101 M. (answer in scientific notation)…
A: The correct answer is given below
Q: TUTOR Identify the Components of a Voltaic Cell A voltaic electrochemical cell is constructed using…
A: Voltic electrochemical cell In these electrochemical cells, the anode is negatively charged and the…
Q: 4. Use the information below to calculate Sº 3 PbBr2(s) Pb²+ (aq) + 2 Br(aq) Substance AHºf (kJ/mol)…
A: From thermodynamics , we have ∆G° = ∆H° - T∆S° So to calculate S° of PbBr2 (s) , we need ∆S° . To…
Q: Write the radioactive decay stated in the following. a. positron emission of Cerium-138 b. beta…
A:
Q: A chemist prepares a solution of calcium bromide (CaBr₂) by measuring out 241. g of calcium bromide…
A: Given : mass of CaBr2 = 241. g Volume of solution = 350. mL To calculate :…
Q: How many mL of 0.100 M hydrochloric acid react with excess zinc metal in order to collect 50.0 mL of…
A: All the necessary calculations have been done in the following step.
Q: 11. Plan syntheses of the following compounds. You may use the given starting material and any…
A: 1) Vilsmeier–Haack formylation introduces formyl group in electron rich aromatic compounds using…
Q: Show the complete mole ratio of S2O3- and IO3- in computing for the Molarity of the titrant. Redox…
A: Moles of a substance can be defined as the ratio of the mass of that substance to its molar mass.…
Q: In the standardization of an acid and base solution, sodium hydroxide (99.5% by mass) was used. A…
A: According to law of equivalence an acid exactly neutralized the same number of equivalents of base…
Q: match each of the following lipids with the specific classification they fall under
A: A lipid is any of various organic compounds that are insoluble in water. Lipid include fats,…
Q: When writing an equilibrium expression, the coefficients from the balanced equation become the O…
A: Here we are required to find the statement which about the coefficient of the balance equilibrium…
Q: Predict the products of the following SN2 reactions. a) ONa +CI- b) Br NaCN c) S Na Br d) CI —…
A:
Q: Problem 2 Predict the preferred regioisomer(s) for the electrophilic aromatic substitution reaction…
A: We have to draw the structure of the product of the given reaction.
Q: A. Give your comment(s) on the following questions below: 1. Are all chiral molecules enantiomers?…
A: Stereochemistry is branch of chemistry in which we deal with three dimensional arrangement of atoms…
Q: (c) Design syntheses of (i) cis and (ii) trans isomers of [PtCl₂(CN)(NH3)], using K₂PtCl4, KCN and…
A:
Q: Predict the products of the following SN2 reactions. a) ONa +CI- b) Br NaCN c) S Na + d) CI…
A:
Q: Shown here are two aqueous solutions containing various ions. The volume of each solution is 200 mL.…
A: Given : Volume of each solution = 200 ml Each sphere is considered as 0.100 mol
Q: Which is the major product/products of the following reaction? NaOEt Multiple products
A: Note : The reaction is E2 elimination. For E2, H and Cl in antiperiplanar geometry is required. (see…
Q: A 25.0g sample of water at 125.0°C was placed in an insulated cup. Then 25.3g of iron at 23.5°C was…
A:
Q: What is the correct name for (CH3)2CCH2CH2CHCOCH3?
A: The correct IUPAC name of the above compound is given below
Q: At a certain temperature the vapor pressure of pure chloroform (CHC13) is measured to be 256. mmHg.…
A:
Q: Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Refer to the AG°f…
A: The standard free energy of formation of a substance is defined as the free energy change which…
Q: Use a table of Standard Reduction Potentials to predict if. If a reaction will occur, write a…
A: First we would check reduction potential of Cr metal and F2 (g) to predict which would tend to get…
Q: Given that 0.150 L of nitrous oxide at 25 degrees Celsius and 749 mmHg pressure , calculate the…
A: Given, Volume of a gas (V) = 0.150 L Temperature (T) = 25°C = (25 + 273.15) K = 298.15 K Pressure…
Q: List optical and magnetic properties of: (alfa)-Fe2O3
A: They are all ferrimagnetic, which means they all attract to magnets, except for α-Fe2O3 (hematite)…
Q: late equilibrium constant for the galvanic cell com orate/chlorine dioxide half-cell. + 2 H+eCIO₂ +…
A: From the given reduction potential data, E°cell = E°a - E°c = 1.13 - 0.613 = 0.517 V
Q: What is the change in Gibb's Free Energy for a reaction that has an enthalpy change of -350.0 kJ/mol…
A:
Q: H₂(g) + Cl₂(9) 2HCl(g) Use the standard thermodynamic data in the tables linked above. Calculate AG…
A:
Q: At a particular temperature, K= 3.75 for the following reaction. 50₂(g) + NO₂(g) = SO₂(g) + NO(g) If…
A:
Q: 35. Calculate the mass of nitrogen dioxide gas occupying a vol- ume of 2.50 L at 35 °C and 0.974 atm…
A: Given that: Volume of NO2 = 2.50 L T = 35°C = 35°C+273 = 308 K P = 0.974 atm
Q: Calculate the potential for a redox titration when 50.00 mL of 0.100 M Co is titrated with 50.00 mL…
A: Of the two electrodes, the one with a more positive reduction potential is cathode and the other one…
Q: Draw structural formulas for organic products A and B in the window below. Cul -Br LI pentane A ■…
A: Detail mechanistic pathway is given below
Q: Which of the following happens when a reaction reaches dynamic equilibrium in a closed system? O The…
A: In the given question we need to tell about the suitable condition that take place when reaction…
Q: Carbon tetrachloride, CCl4, was a popular dry-cleaning agent until it was shown to be carcinogenic.…
A: 1 mole = 6.022×1023 (Avogadro's number) The mass of one mole of molecules of a substance is known…
Q: In the following electrochemical cell, which is the half reaction at the cathode? Cu 2+ (aq) + Ni…
A: Oxidation is loss of electrons. Reduction is gain of electrons.
Q: Consider the following equilibrium: 2H2S(@ 2H2(g) + S2(g) Kc = 2.3 x 104 at 1405 K. a) Calculate for…
A: This question belong to chemical equilibrium that is the properties of equilibrium constant. This…
Q: Please Explain...
A:
Q: A Draw one resonance structure that justifies the rearrangement. Benzyl > Allyl > tertiary >…
A: In resonance structure only electron pairs are involved... Atoms and groups are not involved in…
Q: 1b. A beaker contains 300.0 ml of a 0.20 M Pb(NO₂)₂ solution. If 200.0 ml of a 0.20 M solution of…
A: All the subparts have been done in the following step.
Q: A cholesterol molecule consists of a polar region (shown in white) and a nonpolar region (shown in…
A: Cholesterol molecule has a polar head that contains a hydroxyl group (hydrophilic), and rest of the…
Q: Predict the products of the following SN2 reactions. a) ONa +CI- b) Br NaCN c) S Na + Br
A: Since you have posted a question with multiple parts, we can solve only first three parts for you.…
Step by step
Solved in 2 steps with 1 images
- 12. The following quantities of salts were added to a volume of water to make 1 liter of solution: 1 x 10-2 moles NaCl 2 x 10-2 moles CaCl, 2 x 10-2 moles BaCl, (a) What is the ionic strength of the solution? (b) A small amount of phosphate salt is added to the same solution with negligible change in ionic strength. Given K = 10-7.2 for the reaction H,PO, = H+ + HPO,?- Calculate (H*][HPO,2-1/[H,PO,"), called °K, using the Güntelberg ap- proximation of the DeBye-Hückel law. (c) Calculate the "salting-out" coefficient, k,, for a nonelectrolyte in the same solution if its activity is 10-3 M and its concentration is 9.5 x 10 4 M.The ionic strength of the solution containing 0.1 M FeCl3 and 0.2 M FeCl2 is equalWhat of the following is the expression for the solubility product of Ba3(AsO4)2?
- G.109. Calculate Qsp for calcium fluoride (Ksp = 3.9 × 10-11 ) when 180.0 mL of a 6.50×10-3 M solution of Ca(NO3)2 is added to 295.0 mL of a 5.40×10-3 M solution of KF.What is the molar solubility (in mols/L)of silver chloride in 2.00 M NH3(aq) given that Kgp of AGCI = 1.77x10-10 and Kf of Ag(NH3)2* is 1.70×107? Express your answer in decimal notation rounded to three significant figures.The thermodynamic solubility product of AGCN is 6.0x10-17. (a) What is [Ag+] in a 0.033 M KNO3 solution? 4.0 7.7e-9 X mol·L-1 (b) What is [Ag+] in a 0.033 M KCN solution? 4.0 1.8e-15 X mol·L-1
- 12) What is the Molar Mass (g/mol) of an unknown monoprotic weak acid if 648 mg of it requires 35.86 mL of 0.1221 M NaOH to titrate it to equivalence (aq., 25 oC)?Consider the Gibbs energies at 25 °C. Substance AG; (kJ · mol-!) Ag*(aq) 77.1 Cl^(aq) -131.2 AgCl(s) -109.8 Br¯(aq) -104.0 AgBr(s) -96.9What is the molar solubility (in mols/L)of silver chloride in 2.00 M NH3(aq) given that Ksp of AgCl = 1.77x10-10 and Kf of Ag(NH3)2* is 1.70x107? Express your answer in decimal notation rounded to three significant figures.
- The molar solubility of barium fluoride in a 0.142 M ammonium fluoride solution is М.Write the expression for the solubility-product constant for eachof the following ionic compounds: MnCO3, Hg(OH)2, and Cu3(PO4)2.A 0.5123g sample (molar mass 204.23g/mol) of KHP was dissolved in about 25 mL of distilled water and titrated to the phenolphthalein end point with 28.75 mL of a sodium hydroxide solution. Calculate the molar concentration of the hydroxide solution.