Calculate the volume of 0.10 M SnCl, required to reduce the iron in a 0.50g sample that contains 20% goethite, Fe,O3.H2O. The iron is reduced from Fe3+ to Fe2+ and the tin is oxidized from Sn2+ to Sn*.

Q: Mean [KIO3] (based on titration) = 0.02451 mol L-1 Standard deviation in the mean [KIO3] mol L-1 Con...

A:   [KIO3] mol L-1 (χi - μ) (χi - μ)2 0.02459 0.00008 6.4 * 10-9 0.02462 0.00011 1.21 * 10-8 ...

Q: 6. Acid-Base Equilibria. If HNO, is added to water, how does [OH ] change? How does pH change? a Use...

A: For pure water,  [H+] = [H3O+]  Hydrogen ion is not stable so with water it form hydronium ion. [H+]...

Q: Calculate the normality of a calcium hydroxide solution of 5.18 grams of calcium hydroxide in 4.5 li...

A:

Q: experiment shows that 57. kJ of heat are needed. What can the chemist report for the specific heat c...

A:

Q: SUGAR SOLUTION es this illus Tion, dissociation, or both? Justify your answer. H2O C6H1206(s) + C6H1...

A:  sugar  is  molecular covalent and non electrolyte compound so it is solvated not dissociated.  beca...

Q: Propose an efficient synthesis for the ff. transformations: b

A: a) Transformation 1 -

Q: You need to make an aqueous solution of 0.168 M iron(III) bromide for an experiment in lab, using a ...

A: Given that, Molarity of FeBr3=0.168 M  Molar mass = 295.56 g mol-1 Volume=300 ml = 0.300 L  Mass of ...

Q: At a particular temperature, K = 2.6 x 10^-6  for the following balanced reaction: 2PCl3(g) + O2(g)...

A: Given :  K = 2.6 x 10-6  Moles of PCl3 = 2.5  moles of O2 = 2.0  Volume = 3.0 L   

Q: ch molecular orbital (

A:

Q: Consider the reversible reaction N2 + 3H2 = 2NH3 If one adds extra H2 to an equilibrium mixture cont...

A: Le chatelier principle states that equilibrium will shift in such a way that effect caused by these ...

Q: X. Arrange the following according to decreasing melting point. Explain your answer. A. sodium metal...

A:

Q: How does the measure of the relative viscosity provide a measure of the transesterification process?...

A: Biodiesel is produced by transesterification of vegetable oils and animal fats. Produced biodiesel h...

Q: EQUILIBRIUM CONCENTRATIONS [Fe+]equ, (M) [SCN Jequ, (M) Sample Unrounded Rounded Unrounded Rounded A...

A: Initial concentration of Fe3+ = 0.00150 M Initial concentration of SCN- = 0.00150 M Total volume of ...

Q: the partial pressure

A: In this question we have to explain that the partial pressure of fully humidified air with the above...

Q: At a particular temperature, K = 3.67 for the reaction   If all four gases had initial concentratio...

A: Given, NO2(g) + SO2(g) ⇌ NO(g) + SO3(g) Equilibrium constant (K) = 3.67 Initial concentration of all...

Q: How many grams of the following oxidizing substances constitute the gram milliequivalent weight each...

A:

Q: CS2(g) +3Cl2 (g) = S2Cl2 (g) + CCL4(g) [S, Cl,][CCL] O' Ke = (CS,Cl,] O K = [S2Cl2][CCL] [S2 Cl2][CC...

A: We have given the equilibrium reactions in the given questions. We need to tell the equilibrium cons...

Q: A chiral molecule is one that is not superposable on its mirror image, thus a chiral carbon is a car...

A:

Q: Nickel has a FCC crystal structure, an atomic radius of 0.125 nm, and an atomic weight of 58.68 g/mo...

A: We found that theoretical density is less than that per mental density

Q: In the molecule caffeine, identify the hybridization states of all non-hydrogen atoms based on the g...

A: Hybridization is defined as mixing of orbitals having different energy so as to rehybridize to form ...

Q: d. Salt Bridges 15. Name the peptide он O H H,'N-CH-C-N-CH-C-N–CH-C-0 CH CH, CH-CH, SH CH CH, A. Met...

A:

Q: in high preformance liquied chromarography, what is a Bi phenyl , and what its application and mechn...

A: Generally, C18 columns offer the ability to resolve a wide variety of analytes without issue. Howeve...

Q: Which of the following lacks a regular three-dimensional arrangement of atoms? Multiple Choice ionic...

A:                                   Answer  Regular three dimensional arrangement of atoms The constit...

Q: What statement is False? A). in an endothermic process, heat is transferred from the surroundings i...

A: *Statement-A The reaction in which heat is released from system to surrounding is called exothermic ...

Q: 12. In each pair, predict which would have a greater percentage of hydrate in water and explain. 12 ...

A: Hydration of a molecule  depends  upon extent of polarization of molecule. 

Q: An aqueous solution is prepared by mixing 20.0 mL of 0.0065 M K3PO4, 30.0 mL of 0.015 M NaCl, and 25...

A:                     [K3PO4] = 0.0065 M             Vol of K3PO4 = 20.0 mL Millimoles of K3PO4 = Mola...

Q: For the following reaction, 27.6 grams of sodium chloride are allowed to react with 66.1 grams of si...

A:

Q: Working in a fume hood, to 1 cm of the organic compound in a test tube add On addition of PCLS fumes...

A: The test is based upon the reaction of an organic compound with PCl5.

Q: A chemist dissolves 13.5 g of NaCl in enough water to make a 2500 mL solution. Calculate the molarit...

A: Given, Mass of NaCl = 13.5 g Note: 1000 mL = 1 L Volume of the solution  = 2500 mL = 2.5 L Molarity ...

Q: CH;-CH-CH=CH, CH3 CH3 CHCH2CH2CHCH3 CH, CH3-CH-CH,-CH; CH3-ÇH-C=CH CH3 CH;

A:

Q: Rank the solubility of the compounds in benzene from most soluble to least soluble.

A: Benzene is a nonpolar solvent .So, nonpolar compounds are most soluble in benzene.Let's discuss in t...

Q: pH

A:

Q: Sketch/describe the 1H NMR spectrum for the following molecules. For each signal, predict the chemic...

A: Here we have determine the multiplicity of signal i.e splitting of signal, relative integration and ...

Q: Which one of the following substances crystallizes as a molecular solid? Multiple Choice CH3OH Al2(S...

A: The solid whic consists of dIscrete molecules are called as molecular solids. 

Q: calculate the change in enthalpy for Reaction 2. Reaction 1: C3H8(g)+5O2(g)→3CO2(g)+4H2O(g),C3H8(g)...

A: Given Reaction 1: C3H8(g) + 5O2(g)→3CO2(g) + 4H2O(g)  ∆H1 = -2043 kJ mol-1 Reaction 2: 6C3H8(g) + 30...

Q: What is the condition for spontaneity for systems studied under constant pressure?

A: Spontaneity is determined by free energy and entropy mainly.

Q: Figure 1. Square and rhombic unit cells in 2D layers. Use the visualization tool, and the discussion...

A:

Q: Enter the coefficients directly from the balanced chemical equation. Do not reduce to lowest terms. ...

A: In a balanced chemical equation the reactants are reacted in the molar ratio of their stoichiometric...

Q: Ammonium phosphate ((NH,),PO4) is an important ingredient in many solid fertilizers. It can be made ...

A:

Q: 2 NH3   +  3 CuO   -->  3 Cu   +   N2   +   3 H2O In the above equation how many moles of  N2 can b...

A:

Q: calculate the ionization constant of the acid. 5. What concentration of NH3 is required to make a so...

A:

Q: Which is more efficient in separating the components of a liquid mixture, simple or fractional disti...

A:

Q: To 1 cm of dilute sulphuric acid in a test tube add 3 X is colourless addition of dichromate (VI)and...

A: The test uses dilute sulfuric acid, potassium dichromate (VI) and an organic compound.

Q: QL. Consider the following molecule: A B D At each atom, what is the hybridization and the bond angl...

A: Triple bond - sp hybridization - bond angle 180  Double bond - sp2 hybridization - bond angle 120  S...

Q: molar mass

A:

Q: An aqueous solution of calcium hydroxide is standardized by titration with a 0.113 M solution of nit...

A:

Q: A 9.5m diameter balloon is filled with helium at 16°C and 205.46kPa. Determine the mass of the heliu...

A:

Q: 3. a. When NH, is treated with oxygen gas, the products obtained are N,(g) and H,0(1). Calculate AH°...

A: The reaction between NH3 and N2 can be given as: 4NH3+3O2→2N2+6H2O The enthalpy of the reaction can ...

Q: 2. An experiment was carried out to determine the enthalpy change of combustion of propan-1-ol. The ...

A: We have been given to perform the combustion reaction of propan-1-ol and to study the enthalpy chang...

Q: sample of 3 mol of oxygen has a volume of 22.4 L at 25 K. Find the gas's pressure.

A:

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.