Reaction equation K2SO4 (s) --> 2 K+ (aq) + SO42- (aq) describes how potassium sulphate dissociates in water. According to the reaction equation a. n(K2SO4) = 2 n(K+) b. n(K2SO4) = 0,5 n(K+) c. n(K2SO4) = 2 n(SO42-) d. n(K2SO4) = 0,5 n(SO42-) ?

Q: Ca²+ (aq) + 2e → Ca(s) OA.0.21 V OB. -0.47 V OC -0.21 V OD.0.47 V OE. 0.42 V A Moving to another…

A:

Q: following reaction, when the H₂ pressure is 1.97x10-3 bar, the H+ concentration is 1.22 M, and the…

A:

Q: Define self-assembly. Explain anion- directed self-assembly process by taking a suitable example.

A:

Q: A 9.802-g portion of NaCN was dissolved in enough water to prepare 1.00-L of solution. Calculate (a)…

A: Given,  A 9.802 g of NaCN was dissolved in enough water to prepare 1.00-L ofsolution. (a) the pH of…

Q: Which statement is correct for the cell with a notation Pt /Cl2(g)/Cl¯(aq) // Zn+2(aq)/Zn ?…

A: Answer: In the line notation of a cell, anode is always mentioned in the left and cathode is always…

Q: Balance the following equation:  Show your solution:  ______Fe + O2 -----> _____Fe2O3

A:

Q: Calculate the potential developed by a voltaic cell using the following reaction if all dissolved…

A:

Q: Consider the following reaction at 298K. 2Fe³+ (aq) + Fe(s) 2Fe2+ (aq) + Fe²+ (aq) The standard…

A:

Q: The concentration of concentrated hydrochloric acid (HC1) is around 32 percent mass by volume.…

A: Given, Density of HCl - 1.2 g/mL Density of water - 0.997 g/mL Solution contains- 32 g HCl in 100 mL…

Q: Ascorbic acid (H2C6H6O6; represented as H2Asc for this problem), known as vitamin C, is a diprotic…

A: Solutions- Given-Ascorbic acid (H2C6H6O6; represented as H2Asc, vitamin C, is a diprotic acid (Ka1 =…

Q: 4. What is the molar solubility of lead (II) bromide (PbBr2, Ksp = 6.6 x 10-6)? a) 0.012 mol/L b)…

A:

Q: Give the reaction mechanism (showing curly arrows) for the bromination of methane in the presence of…

A: Here we are required to show the mechanism of the reaction

Q: 29. A 275 mL sample of gas is kept at 25°C. What volume will the gas occupy at 100.°C? 30. A 575 mL…

A:

Q: Briefly discuss titration errors from the use of acid/base indicators

A: There are two types of errors that occurs from the use of acid / base indicators. Determinate error…

Q: All of the following are properties of zinc. Which is NOT a physical property. It corrodes with…

A: In this question, we will select the statement which is not a physical property that means it is a…

Q: Balance the reaction between H3ASO4 and Cr to form HASO₂ and Cr³+ in acidic solution. When you have…

A: Balanced the redox reaction and calculate number of water molecule appear --

Q: What is the product B in the following reaction? CH3MgBr/ether A H₂O* B

A:

Q: (c) The experiment was repeated, but this time starting with a 4.0 mol sample of CaCO3(s). On the…

A: When CaCO3 is heated, the following reaction take place: CaCO3(s) ↔ CaO(s)+CO2(g)

Q: To do: Identify the oxidizing agent and reducing agent in the reactions. 1. 2Na2S2O3+/2→…

A: Here we have to predict the oxidising agent and reducing agent in the following redox reactions.

Q: single, H singl 2 6 10 PPM 12. How are the structures in the box related? COOH COOH H NHe H₂N- -H…

A:

Q: [NH₂] = 3.6 X 102 mol L- 12.34 The equilibrium constant for the reaction, 3 H₂(g) + N₂(g) 22 NH3(g),…

A: Equilibrium constant is defined as ratio of concentration of product to the concentration of…

Q: a. b. C. d. & cell 7H₂O + 2 Cr³+ + 3Cl₂ ⇒ Cr₂O7²- + 6 Cl¯ + 14H+ KJ Cu²+ (aq) + Mn(s) ⇒ Mn²+ (aq) +…

A:

Q: The plot of InK vs. 1/T for a particular chemical reaction shown below yields a linear equation…

A:

Q: Molten CaCl2 can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

A:

Q: onsider the following reaction at 298K. Fe³+(aq) + Cd(s)→→→→→2Fe²+ (aq) + Cd²+ (aq) he standard…

A:

Q: Steel is often coated with a thin layer of zinc if it is to be used outside. What characteristics do…

A: Steel is an alloy of iron and carbon, so it is prone to rusting. Galvanizing is a process where iron…

Q: (5) Demonstrate that the function P=-i d dx y = exp(timx) is simultaneously an eigenfunction of and…

A:

Q: Phenylacetic acid (C6H5CH2COOH, simplified here to HPAc is a monoprotic acid. It builds up in the…

A: First write reaction of phenylacetic acid with water and on basis of that reaction, find Ka and pKa…

Q: 1. Fill in the following table. [H₂O*] (M) 5.9x10² [OH] (M) 3.6x10³ PH 3.9 РОН 6.5

A:

Q: What is the wavelength in Ångstroms of radiation that has a frequency of 4.00 x 10-s? Ångstroms =…

A: 1. Frequency = Speed of light / Wavelength 2. Species having same no of electrons are known as…

Q: For each of the following pairs, indicate which one of the two species is larger: (a) For F *0% H…

A:

Q: 15. You have 15 mL of a 0.25 M NaCl(aq) solution. What volume should you dilute it to in order to…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: 7.41 g Ca(OH)2 dissolves in 50.0 g of water in calorimeter. The initial and final temperatures c the…

A:

Q: 2. What concentration of OH is required to begin the precipitation of Cu(OH)2 from a solution…

A: Given, Concentration of Cu2+ = [Cu2+] = 0.10 M  Ksp for Cu(OH)2 = 2.2 × 10-20 Concentration of OH- =…

Q: Balance the reaction between S2- and CIO3 to form S and CI in basic solution. When you have balanced…

A: Step-1 Write the equation with oxidising number-

Q: Humpty Dumpty , a famous nursery rhyme is a good example of entropy.Describe the entropy of Humpty…

A: In this question, we have to Describe the entropy of Humpty dumpty before and after it fell from the…

Q: How long must a current of 0.40 AA   A pass through a sulfuric acid solution in order to liberate…

A:

Q: 3) Contains C,H,O - alcohol MASS SPECTRUM 100 80 60 40 20 0.0 10 20 30 40 50 60 m/z NIST Chemistry…

A: m/z = 31 is responsible for CH2=OH. Therefore the compound is n-propyl alcohol. m/z = 31 is base…

Q: The solubility-product constant for Ce(IO3)3 is 3.2 x 10-10. What is the Ce³+ concentration in a…

A: Given: Concentration of Ce3+ = 0.0450 M Volume of Ce3+ solution = 50.0 mL = 0.050 L  Concentration…

Q: The rate law for the oxidation reaction 2CO(g)  + O2(g)  →  2CO2(g) assuming that the reaction…

A:

Q: 5. Which of the following compounds displays besides other signals - a nonet (a signal that is split…

A:

Q: A buffer is prepared containing 0.250 M NH3 and 0.253 M NH4Cl. Calculate the pH of the buffer. The…

A: Use the formula of buffer solution to calculate pH for buffer solution and calculate Ka value using…

Q: A solution contains alanine and serine. What are the possible dipeptide products that can form from…

A:

Q: 4) Contains C,H,N MASS SPECTRUM 100 80 60 40 20 0.0 10 20 30 40 50 60 m/z NIST Chemistry WebBook…

A: Molecular formula : C4H11N ( DBE = 4- (11-1/2)+1 = 5-5 = 0 . Therefore the compound name is…

Q: CH3 o-nitrotoluene CH3 NH, CI NO2 CH3 o-toluidine NH3*,CI CH3 CI 2-chloro-N-o-tolilpropanami NH,HCO,…

A:

Q: What is the purpose of NaCl in the experiment? Will the same result be obtained if thereacting…

A:

Q: 5) C,H,X in this compound MASS SPECTRUM 100 80 60 40 20 0.0+ 20 40 60 80 100 m/z NIST Chemistry…

A: Note : M: M+2 ration is 3:1. Therefore the compound is having chlorine atom. m/z = 77 belongs to…

Q: What is the calculated value of the cell potential at 298 K for an electrochemical cell with the…

A:

Q: Using structures, draw how Mg2+ interacts with glutamic acid at a pH of 7? AND draw, how glutamic…

A: Amino acids are those which the basic and acidic both functional groups. Carboxylic group is the…

Q: . Draw the condensed structural formula of the following alcohols. 1. 5-Ethyl-4-methyl-1-heptanol 2.…

A: (1) 5-Ethyl-4-methyl-1-heptanol -  It has main chain of seven carbons with one methyl group at…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".