1. Complete the table Isotope Mass (amu) Relative Abundance (%) Silicon- 28 27.97693 92.21 Silicon- 29 28.97659 1a. Silicon- 30 29.97376 3.09 1b. Average Atomic Mass: Total % :100

Q: It is determined that the equilibrium concentrations of F e3+, SCN- and [F e SCN2+] are 5.00 x 10-4 ...

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Q: Calculate the following (Show your solution) 1. Adrian dissolved 10.0 g of sugar in 250 mL of wa the...

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Q: What is the pH (in two decimal places) of a 0.047 M solution of Sr(OH)2?

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Q: Nitrogen dioxide, NO2, decomposes upon heating to form nitric oxide and oxygen according to the foll...

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Q: tablets

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Q: Outline the properties that would be expected of the element flerovium (the period 7 element in grou...

A: Answer - Flerovium is a superheavy artificial chemical element with the symbol Fl and atomic number ...

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A: To explain: How many valence electrons does hydrogen need to complete its shell.  

Q: b) 1. EtMgBr 2. H20

A: When Grignard reagent reacts with ester in presence of water then formation of alcohol takes place ....

Q: How many ions metals are measuring in .water alkaline Four. O Three. O Six.

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Q: Label All the functional groups present in the structures below (to the right)

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Q: 1. What is the pH of a water that contains 120 mg/L of bicarbonate and 15 mg/L of carbonate ions?

A: Given: Concentration of bicarbonate i.e. HCO3- = 120 mg/L. And concentration of carbonate i.e. CO32-...

Q: Consider the following decomposition reaction: 2HI(g) → H2(g) + 12{g) At a particular temperature, t...

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Q: e equilibrium constant

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Q: 3. The normal boiling point of Diethyl Ether is 35.41C. A solution of diethyl ether, containing a no...

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Q: The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half...

A: Half-life of reaction = 20 minutes  

Q: identifying letters A-D below each structure. A table of pka values for various organic and inorgani...

A: Given : We have to write which of the following is weaker acid and its conjugate acid .

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A: In the given reaction rate expression is written in the term of change of concentration one of the r...

Q: formula

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Q: The bond of Ni2Mg is more metallic than CuAl2   True or False?

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Q: Menthol is a very cool compound. If a sample of menthol is examined by UV spectroscopy, what would y...

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Q: Sulfuric acid (H,SO, is a polyprotic acid. Write balanced chemical equations for the sequence of rea...

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Q: Methods in precipitation titration are. Two. O Four. Three.

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Q: What is S° for B in the reaction 3 A → 2 B if ∆S°(rxn) =-227.8 J/mol ･ K? [S° (A) = (205.0 J/mol ･K)...

A: Entropy is thermodynamic property which measure the randomness of the system.

Q: Only need solution of 3rd part. Ans: 10 isomers (Please send their structures)

A: For the coordination compound pentaaminenitritocobalt(III)nitrate we have to write the number of iso...

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Q: Determine the rate law and the value of k for the following reaction using the data provided. S20g2-...

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Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in aerosols and refrigerators b...

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Q: The aquation of tris(1,10-phenanthroline)iron(II) in acid solution takes place according to the foll...

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Q: 2. Twenty-five mL of 0.100 M lactic acid (K, = 1.4 x 104) is titrated with 0.097 M KOH. %3D a) What ...

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Q: A solution of H2SO4 containing 50.0% H2SO4 by mass has a density of 1.40 g/mL. Express its concentra...

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Q: 5. The chemical reaction presented below is not balanced. Balance it and calculate and for this reac...

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Q: Write expressions for K and Kp for the following reaction 5 C4H10(g) + 25 O2(g) (double arrow) 20 C...

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Q: grams per liter

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Q: Alkalinity understand that is. Measure of acidity. Measure of basicity. Measure of nationalize.

A: Acidity is the measurement of hydronium ion in solution. 

Q: A mixture is made by combining 110 mL of 0.015 M HCl and 215 mL of 0.025 M HI. What is the pH (answe...

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Q: Vị V2 Charles' Law: Ti(K) Question #3 An ideal gas at 453.9°C and 550.0 mmHg is contained in a flexi...

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Q: 9.00 mL of 4.00 x 10-3 M Fe(NO3)3 (4.00 times 10 to the minus 3rd power M F e (NO3)3) is added to 5....

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Q: Write an equation that shows the formation of the nitride ion from a neutral nitrogen atom. Represen...

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Q: Consider a reaction A + B → C with corresponding rate law rate = k[A]n [B]m If n = 2, m = 1: (a) W...

A: Given : Rate law is given as : rate = k[A]n [B]m

Q: Propose the mechanism for the following reaction: OH CH;OH H,SO,

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Q: Which case is catalyzed in the following diagrams? 50 45 40 35 30 25 20 50 45 40 35 30 25 20 15 10 1...

A: The correct option is:  

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Q: .Alkalinity understand that is Measure of acidity. O Measure of basicity. O Measure of nationalize. ...

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Q: TReview lopicS] TRelerences Nitrogen dioxide, NO2, decomposes upon heating to form nitric oxide and ...

A: given Initial concentration of nitrogen dioxide (NO2) = 0.1103 mol/L Final concentration of NO2 = 0....

Q: Consider a reaction A + B → C with corresponding rate law rate = k[A]n [B]m If n = 2, m = 1: (d) H...

A: Given: Rate law of the reaction is given by, => Rate = K [A]n [B]m = K [A]2 [B]1   

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.