chemical transformations

Q: Three labs were contracted to measure the concentration of a 5.50 ppm Ca2+ standard solution. They e...

A: For the problem we have to find out which lab measurements is most accurate result and which one has...

Q: Molar en thal phy

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Q: Lead (Pb) has been used for centuries. The Romans used it in their plumbing systems - the symbol for...

A: An exothermic reaction is the reaction in which energy is evolved in products.  But an endothermic r...

Q: sample of a gas is in a reaction vessel under a certain set of conditions such that it possesses 4.3...

A: ANSWER :   (a)We know a formula that entropy relates with the microstates :  S = K*lnW  Here :  S = ...

Q: how do molecules of sunscreen interact with each other to reduce the overall UV exposure

A: The answer is given below

Q: A chemist has a block of copper metal (density is 8.96 g/mL). The block weighs 1.70 g. What is the v...

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Q: 1. A chemist, , wishes to prepare 100.0 mL of a buffer of pH 10.0000 using the base methyl amine, CH...

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Q: Convert each of the following H3O* concentrations to pH. 1.15 M i eTextbook and Media 2.36 µM i 0.03...

A: We know that,  pH = -log[H+] Here , concentration of H+ or [H3O+] is given.   

Q: The chemical analysis of a binary hydrate shows that it is composed of 27.76% Mn, 35.82% Cl and 36.4...

A: Calculating empirical formula:

Q: i-step synthetic pathway below by filling in the missing products along Synthesis B Synthesis C CH;C...

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Q: A gas mixture is composed of 2.0 moles Hz and 1 mole N2. Calculate (a) the average molar mass of the...

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Q: 2F22* + H202 + 2H* → 2FE3* + 2H20

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Q: Given this phase diagram and the data table, how do I arrive at the heat of vaporization (in kJ/mol)...

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Q: Predict by what mode(s) of spontaneous radioactive decay each of the following unstable isotopes mig...

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: millibars

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Q: What is the Amax of this given structure?

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Q: 70 65 Vapor 60 55 50 2.4 45 40 Liquid n diagram hexane 1.0 atm 35.1 30 0.0 0.2 0.4 1.0 0.6 Mole frac...

A: Soln

Q: An aqueous solution with 15 g sulfuric acid is dissolved to make 0.2F solution. The specific gravity...

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for you...

Q: 1. Consider an aqueous solution of ammonium nitride. a) How many grams of ammonium nitride are prese...

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Q: 13C NMR Spectrum (50.0 MHz, CDCI, solution) DEPT CH CH, cCH solvent proton decoupled 200 160 120 80 ...

A: 13C-NMR: 5-signals indicates the five types of carbons.  1H-NMR: Three signals indicates three types...

Q: 4. Determine the structure of the compound with molecular formula CaHsO2 that gives the following 'H...

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Q: What changes would be made to separate the two isomeric pinene (α and β), bp 156 oC and 167 oC  resp...

A: As the boiling points of the isomers is different enough that we can separate them by fractional dis...

Q: List the following molecules in terms of increasing Intermolecular Forces (IMFs).  H20, CO2, CO, Ne...

A: A question based on inter-molecular forces that is to be accomplished.

Q: You are making 2.2 L of 3.1 M silver nitrate solution. How many moles of solute are there?

A: Volume of solution = 2.2 L  Molarity of silver nitrate solution = 3.1 M  In the given solution solut...

Q: Propose a multi-step synthetic pathway for the desired target compound starting with the reactant sh...

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Q: 9//identify each substance Acid Base conjugate acid Conjugate base

A: An acid is a substance that give proton when dissolved in water and a base is a substance accept pro...

Q: One atom has 15 protons and 16 neutrons in its nucleus, with 15 electrons traveling around it. Anoth...

A: Isotopes are the elements which have same atomic numbers but they have different mass number  Ex. 1H...

Q: At 500 C carbon monoxide gas and hydrogen gas reacts with each other to form methane gas and water v...

A: Given temperature is 500 degree celcius

Q: Use two concentration tables to calculate the concentrations of the species present in a 0.390 M sol...

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Q: What is the polarity of the H - C bond?

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Q: A concentrated solution of NaOH is 50% NaOH by mass and has a density of 1.54 g.ml. if 25 mL of this...

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Q: Caluculate how many times the rate constant changes in a reaction of A---> B when the temperature ch...

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Q: A solution of iodine in carbon tetrachloride has a density of 3.22 g/mL and a concentration of 3.00 ...

A: Answer: To calculate the volume percent, we need the volume of iodine and volume of solution. First ...

Q: a. What is the value of X? ( b. What is the value of Y? ( c. What is the value of Z? (

A: Since you have asked a question with multiple subparts, we will answer only first 3 subparts for you...

Q: Match column A with column B. v Mobile phase: NON-POLAR Stationary phase: NON-POLAR v mobile phase -...

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Q: Give biosynthesis of Carvone from gerany|pyrophosphate in clear handwritten!......

A: Carvone is a naturally occurring ketone found in the essential oils of caraway, dill, and spearmint ...

Q: 3) Design a reasonable synthesis for the following transformation. = trort + B.

A: Here we have synthesize the given polymer which is a polyester obtained from starting material 1,4-d...

Q: Fluoride ion is added to drinking water to prevent tooth decay. What is the mass in grams of sodium ...

A: Given Formula units = 1.19 × 1019 

Q: A mixture of 0.02993 mol of O2, 0.02165 mol of NOCl, 0.02691 mol of NO2, and 0.01037 mol of Cl2 is p...

A: Total number of moles in reaction vessel = 0.02993 mol + 0.02165 mol+ 0.02691 mol+ 0.01037 mol = 0.0...

Q: Which is statement is true about the neutrons of atom?

A: (a) Option (a) is incorrect.     Atomic mass equals the sum of neutrons and protons present in the n...

Q: e enthalpy of formation

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Q: 3. For the cell notations in the previous problem, write the corresponding balanced reactions. . Con...

A: Galvanic cell reaction:-  2Cr(s) + 3Cu+2(aq) --------> 2Cr+3(aq) + 3Cu(s) Anode is the place wher...

Q: onvert each of the following pH values to a hydroxide ion concentration. y = 1.0E-14. 1.32 i M eText...

A: pH = -log [H+] [H+] x [OH-] = 1 x 10-14 As per our guidelines we can only solve first three sub-part...

Q: Sample exercises  (21) use Dalton's Law

A: Excercise 21 :-  Using Ideal gas equation.,  PV = nRT And, P = nRT/V 1 dm3  = 1 L 10 dm3  = 10 Litre...

Q: The mass density of phosphorus vapor is 0.6388 kg m-3 at 100°C and 1.60 kPa, which corresponds to a ...

A: Solution - Mass density - The mass density of an object is defined as its mass per unit volume. Mass...

Q: I. Give the IUPAC name for each compound: a. (CH3)2C=CHCH,CHCH,CH3 ČH;CH2CH3 b. (CH3);CC=CC(CH3)3 c....

A: A question based on nomenclature that is to be accomplished.

Q: the rate constant for the first-order decomposition of N2O is 2.97 s^-1. what s the half-life of the...

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Q: Balance the below chemical reaction. Ec1H16 + O2 → → EcO2 + H2O In the correctly balanced equation, ...

A: In balanced reaction number of each atom on reactant side is equal to number of each atom on product...

Q: A mixture of 4.41 g propane (C_{3}*H_{8}) and 6.40 g of oxygen (O_{2}) is ignited . What reactant is...

A: Answer: excess reactant - propane(C3H8) Carbon dioxide (CO2) formed = 5.28 g , Water (H2O) formed = ...

Q: Suppose a student measured the mass of a sample that has a known mass of 40.5809 g using an analytic...

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Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.