What is the percentage of manganese in the original sample?

Q: 49. The resistance to the addition reactions involved in unsaturation tests indicate the extra stabi...

A: Bromine test tells about the presence of unsaturated bonds which can be double bonds or triple bonds...

Q: onstant (?) data collected during the experiments. Plot the data to answer the questions. What is t...

A:

Q: Suppose a 500. mL flask is filled with 0.20 mol of Cl, and 1.5 mol of HCI. The following reaction be...

A:

Q: 2. The cell potential of this electrochemical cell depends on the pH of the solution in the anode ha...

A:

Q: 2) If an unknown Cu*2 solution has an absorbance of .62, a) Find its molarity graphically: A M b) Us...

A:

Q: eeq/mole cells Nitrogen Source AGpe (kJ/g cells) AGpe (kJ/eeq cells) Ammonium (NH,") Nitrate (NO3) 2...

A: Here we have to write the balanced redox chemical reaction of toluene and Nitrate ion to produce CO2...

Q: Consider the reaction: Cl2(g)+3F2(g)→2ClF3(g) Δ[Cl2]/Δt= -0.023 mol L−1 s−1 Find Δ[F2]/Δt Find Δ...

A: The rate of the formation of the product or the rate of disappearance of the reactants is known as t...

Q: Linear polymers are more water-soluble than branched ones.    True  False

A:

Q: How can reactions be determined? Select one: O a. Exothermic reactions occur always rapidly. O b. Re...

A:                           Answer  Reaction can be determined :-  Reaction can be determined by the e...

Q: What is the proper cell notation for the reaction: Cu + 2Fe^3+ = Cu^2+ + 2Fe^2+

A:

Q: What is hydrogenation

A: What is hydrogenation ? 

Q: Steam reforming of methane ( CH, ) produces "synthesis gas," a mixture of carbon monoxide gas and hy...

A:

Q: A 50.0 g iron ball (sp ht = 0.473 J/g C) is heated to 35 C and is placed in a calorimeter holding 10...

A: Given, For iron ball: Mass of iron ball (miron) = 50.0 g Specific heat capacity of iron (Cpiron) = 0...

Q: A. Draw the following aromatic hydroca 1. p-diethylbenzene 2. 3-phenylhexane 3. 2-methyl-1,4-diethyl...

A: Given aromatic compounds are :  1. p-diethylbenzene  2. 3-phenylhexane  3. 2-methyl-1,4-diethylbenze...

Q: Which of the following statements concerning oligosaccharides is true? Oligosaccharides can protect ...

A: Here we have to determine the correct statement regarding oligosaccharides which are present as glyc...

Q: Briefly describe and explain how to build a stable and reliable three-electrode cell using typical c...

A: The three electrode system consists of a working electrode a counter electrode and a reference elect...

Q: Bromohydrin 1 can be prepared from the alkene shown below by reaction with Br2 and H20 as shown belo...

A:

Q: Help me pls

A: The products are as follows:  

Q: 61. This process is called 2 5 O Paper chromatography Thin Layer Chromatography Column chromatograph...

A:

Q: The photochemical reaction (i.e., the reaction of hydrogen gas and chlorine gas to produce hydrochlo...

A:

Q: At a certain temperature the vapor pressure of pure acetyl bromide (CH,COB1) is measured to be 458. ...

A:

Q: I. Directions: Draw the lewis structures of the neutral atom and the ion of each element. Determine ...

A: Given,

Q: Calculate the standard free energy change (kJ/mol) for the reaction shown at a temperature of 298.15...

A:

Q: 61. In the process of sublimation, what is this compound that sublimates? Benzoic Acid O salicylic A...

A: In the presence of sublimation , the compound that sublimate is given below.

Q: Complete each reaction scheme below with the starting material required to give the product shown as...

A: Three membered rings formed by two carbon and one oxygen atom is known as epoxide ring. The heterocy...

Q: 6. 3,3,6,6-tetramethyl-4-octyne 7. 2-bromo-1-chloro-3-isopropyl-1,3,5-cyclohexatriene

A:

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

A: Volume of vessel = 2.0 L  Pressure of sulfur dioxide gas = 3.9 atm  Pressure of oxygen gas = 0.74 at...

Q: 3A+4B→2C is found to be second order with respect to A and the rate constant for the reaction is k ...

A:

Q: Draw the structural condensed formula of 2,2-dimethylhexan-3-one.

A:

Q: 50.0 g iron ball (sp ht = 0.473 J/goC) is heated to 35oC and is placed in a calorimeter holding 100....

A: Given  Mass of iron ball = 50 g  Specific heat of iron =0.473 J/goC  Mass of water = 100°C  Initial ...

Q: Determine the molecular equation for the reaction of zinc carbonate with hydrochloric acid. Determin...

A: We have to predict the balance molecular reaction as well as net ionic equation   

Q: is a method of purifying a compound by removing any 31. impurities that might be mixed with it. It i...

A:

Q: 15.5 (Pages 650 -656), 15.7 (Pages 661-666) Suppose that a catalyst lowers the activation barrier of...

A: Given : Temperature = 298K

Q: Sulfur dioxide and oxygen react to form sulfur trioxide, like this: 2 SO,(9)+O,(g) – 2 SO3(9) The re...

A: Le Chatelier's principle: According to the Le Chatelier's principle when a change in concentration t...

Q: The specific heat of a certain type of cooking oil is 1.75 J/ (g.°C). How much heat energy is needed...

A: We have to predict the energy needed.  

Q: Submit Question 13 of 40 What is the correct IUPAC name for the compound shown here? CH3 CH3 H-C-CH2...

A:

Q: 20. What is the best method used to separate the components of the mixture of benzene, toluene, and ...

A:

Q: Consider the redox reaction: Al + MnO4^- + 2H2O → Al(OH)4^- + MnO2. The chemical species being oxidi...

A:

Q: Br. 4- 3- 6-) 5-) 1-) 2- CYclo

A:

Q: The decomposition of N2O5 can be described by the equation   2N2O5(soln)⟶4NO2(soln)+O2(g) Consider...

A:  

Q: true or false

A: 1. True Tautomerism is a type of isomerism i which the two isomers are interchangeable and they exis...

Q: Liquid butane is used in cigarette lighters. The boiling point of butane at 1 atm pressure is -1.0 °...

A: We have to predict the pressure at different temperature.  

Q: Using C1V1=C2V2

A: The table given is,  

Q: uestion 8 of 16 > A hot 125.0 g lump of an unknown substance initially at 153.0 °C is placed in 35.0...

A: To identify the unknown substance, we have to determine specific heat capacity of unknown substance....

Q: I. Solubility Test (Record the color and appearance of each test solution.) Coconut Oil Palmitic Oil...

A: SOLUTION

Q: respect to B. The reaction is run with an initial concentration of B equal to 3.18*10^{-1} M3.18∗10−...

A: For 1st order kinetics,  Kt = ln(Ao/A) Where,   K = Rate constant  Ao = initial concentration of B A...

Q: Answer: a. ENDOTHERMIC reaction b. kJ -1 attachment Consider the following reaction: CH. (9) + 2 02 ...

A: The balanced reaction given is, =>  

Q: ow many milliliters of a stock solution of 10.0 M HNO3 would you have to mL you dilute 21.0 mL of th...

A: Part A: Given data set: M1= 10.0 M M2= 0.200 M V1=? V2= 0.500 L Using dilution formula: M1*V1= M2*V2...

Q: 3. Assume that a student places 1.0 mol of solid Pbla in 1.0 Lof water. Part of the lead iodide diss...

A: Number of moles of PbI2 = 1 Mole  Volume of water = 1L Concentration of [I- ] = 0.0052M

Q: OH HỌ HO OH OH HO Но HO. Но OH Which is the correct IUPAC name of the structure given? O a-D-glucopy...

A: It depends on the anomeric carbon.  Anomeric carbon is the next carbon of oxygen.  If it is below th...

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.