Solid lead(II) cyanide is slowly added to 125 mL of a 0.442 M potassium fluoride solution until the concentration of lead ion is 0.0289 M. The percent of fluoride ion remaining in solution is

Q: For the reaction, 2s02(g) + O2(g) - 2S03(g) at 450.0 K the equilibrium constant, Ko, has a value of ...

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Q: 10. Consider a buffer prepared from the weak acid HF and its conjugate base F (shown below). What ha...

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Q: Suppose 1.53 g of barium nitrate is dissolved in 250. mL of a 42.0 m M aqueous solution of ammonium ...

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Q: A 20.00-mL sample of 0.150 M NH3 is being titrated with 0.200 M HCl. What is the pH after 15.00 mL o...

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Q: Aqueous sulfuric acid (H,SO,) will react with solid sodium hydroxide (NaOH) to produce aqueous sodiu...

A: Answer: 18.8 g

Q: Given a solution of 0.1 M Ag+ and 0.2M of Pb2+, (Ksp for silver oxalate = 3.5x10^-11 and ksp for lea...

A: More soluble precipitate is the one having higher solubility product value. Here lead oxalate is the...

Q: Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid...

A:                                       Volume of tank = 75.0 L               Initial number of moles ...

Q: What is the name of the following apparatus? O a. Crucible Tongs O b. Wire gauze Oc Erlenmeyer flask

A: Laboratories require a wide range of equipment and instruments in order to conduct testing and resea...

Q: Suppose 1.34 g of copper(II) nitrate is dissolved in 150. mL of a 50.0 m M aqueous solution of sodiu...

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st q...

Q: . A mixture consisting of 0.130 mol N2, 0.215 mol O2, 0.100 mol CH4, and an unknown amount of CO2 oc...

A:  Given :-  Pressure = 1.09 atm  Volume = 18.90 L  Temperature = 25°C  No.of.moles of N2 = 0.130 mol ...

Q: 2. Consider a glycolic acid () and glycolate () buffer system. Write the chemical equation represent...

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Q: Practice Exercises 6.1 1. a. b. H,CO,(aq) = H,O(/) + CO,(g) H,O(g) + C6) = H,(g) + CO(8) 0,(g) + 4NO...

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration o...

Q: make

A: Given statement is true.

Q: Complete and balance the equation Co(C2H3O2)2•4H2O

A: A balanced equation can be defined as the equation in which equal number of atoms of each element is...

Q: 2. Which solution is the most acidic? А) 1.0 x 10-7 м ОН В) 2.3 х 10 3 М ОН С) 3.9х 10 8 М ОН D) 5.1...

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Q: ålöng än äiF onsidering a macroscopic object, a 0.40-kg cart is moving back an track between two bum...

A: Solution - According to the question - Given - Kinetic energy of cart = 1/2 mv2  = 1/2(0.4kg) (0.5m/...

Q: O2 behaves as a van der Waal's gas. Given Tc=154.8K, Pc=50.8 bar, Zc=0.3008. Compute for the followi...

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Q: How would you carry out each of the following syntheses? Each may require mo than one step. a) CH3CH...

A: ->Alkyne on hydrolysis give carbonyl compound. ->terminal Alkyne has acidic hydrogen.  

Q: 7. Which species can act as a Brønsted-Lowry acid? A) Br2 B) CO;2- C) LiżO D) HBr

A: Bronsted Lowry acid is act by the species which donate H+  from the compound.

Q: Consider a rotating molecule of ®Li'H. At T = 300 K, the rotational kinetic energy in the eighth exc...

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Q: Gaseous ammonia chemically reacts with oxygen (0,) gas to produce nitrogen monoxide gas and water va...

A: 4NH3(g) + 5O2(g) ----> 4NO (g) + 6H2O(g) Number of moles of O2 = 0.075 moles

Q: A chemistry graduate student is given 300. mL of a 1.40M ammonia (NH, solution. Ammonia is a weak ba...

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Q: From the given compound beiow, caicuiate the heat of reaction at costant pressure. C2H5OH CO2 + H2O

A: The reaction considered has ethanol as reactant and CO2 and H2O as products. It is required to calcu...

Q: n a particular hospital, a doctor ask you to prepare 1.50 L of 2.75 M ethyl alcohol (C2H5OH) solutio...

A: No.of moles =  Molarity  × Volume   Mass =  No.of moles × Molar mass

Q: A0.311 g of antacid was neutralized with 20.0 mL of 0.102 M HCI. Calculate the neutralizing capacity...

A: Given that 0.311 g of antacid was neutralized with 20.0 ml of 0.102 M HCl. We have to find the neutr...

Q: Calculate the pH of 0.030 M Ba(OH), solution. 12.78 O 1230 O 122 O 12.48 12.16

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Q: Determine the pH of a 0.373 M aqueous solution of ammonium chloride at 25 °C. The K, for ammonia is ...

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Q: Activity 2. Complete the table to prepare the given solutions with different concentrations: Mass So...

A: Molarity = Mass / Volume (L)

Q: A liquid has an enthalpy of vaporization of 44.2 kj/mol. At 474 K it has a vapor pressure of 103 mmH...

A: Given data,Enthalpy of vaporization=44.2kJ/molInitial pressure (P1)=103mmHgInitial temperature (T1)=...

Q: What is the solubility of PbF₂ in a solution that contains 0.0550 M F⁻ ions? (Ksp of PbF₂ is 3.60 × ...

A: The solubility of any salt is defined as the how much the given solute can be dissolved completely i...

Q: In the reaction: BCI3 + NH3 The Lewis acid is: (c) B-NH3 1. O cr O H,O O H O NH3 BCly

A: A Lewis acid is a chemical species which has an empty orbital in which it is able to accept electron...

Q: 1) Consider the following reaction occurs: 3 Al2Cls (g) 2 Al3Cls (g) a) In an experiment at 454 K, t...

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Q: Titanium(IV) chloride decomposes to form titanium and chlorine, like this: TiCl,(1)→Ti(s)+2Cl,(9) At...

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Q: Prepare a 250-mL buffer with pH = 4.40 from solid reagents benzoic acid (C6H5COOH; M = 122.123 g mol...

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Q: please answer wit explanation.

A: The given redox reaction is as follows:

Q: Write an introduction about Matter.and Mixtures.

A: Introduction to matter:

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Q: Ammonia has been studied as an alternative "clean" fuel for internal combustion engines, since its r...

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Q: Calculate the following answer and round to proper decimal places, Don't forget units. 9.30g - 4.30g...

A: Calculate the following answer and round to proper decimal places, Don't forget units. 9.30g - 4.30g...

Q: A chemistry graduate student is given 450. mL of a 0.60M propanoic acid (HC,H,CO,) solution. Propano...

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Q: 36 & 37. An organic compound has a molar mass of 372 g/mol, and its composition is 38.6% carbon, 9.7...

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Q: Suppose a 500. mL flask is filled with 0.10 mol of NO,, 1.8 mol of NO and 0.50 mol of CO,. The follo...

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Q: ion of 0.1789 M phosphoric acid is used to standardize an unknown solution of sodium hydroxide accor...

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Q: What are the signs of AH°, AS" and AG° for the reaction of dissociation of N2 moiecuie to two nitrog...

A: Since there is triple bond between two N atom hence breaking of triple bond is quite difficult requi...

Q: . Terminal alkynes react with Br2 and water to yield bromo ketones. For example: `CH;Br Propose a me...

A: Detail mechanism of the addition reaction is shown below

Q: Given a solution of 0.1 M Ag+ and O.2M of Pb2+, (Ksp for silver oxalate = 3.5x10^-11 and ksp for lea...

A: Solubility product Ksp is the product of ionic concentration required to precipitate any insoluble s...

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous sod...

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Q: Determine the rate of decay (in decay events per sec) from 1.00 mol of radioactive nuclides with eac...

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Q: Suppose a 500. mL flask is filled with 1.7 mol of Br,, 1.4 mol of OCl, and 1.6 mol of BrCl. The foll...

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Q: At a certain temperature, the equilibrium constant K for the following reaction is 2.25 x 10': H,(g)...

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