3. ). 0. FIND THE NUMBER OF ATOMS OF (CL, C, H and F) OF THE FOLLOWING REFRIGERANTS Dichlorotetrafluoroethane R113 Tetrachlorodifluoroethane R111 Hexachloroethane R50 Fluoromethane R40 Difluoromethane R31

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Q: is this using the noble-gas shorthand

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A: We will use formula of osmotic pressure and given data to calculate the molar mass of antibiotic.

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Q: Calculate the formula or molar mass, to the hundredths place, of the following compounds.Write the…

A: Molar mass of a compound is the sum of individual atomic masses of the elements present in them. Let…

Q: Which two compounds or polyatomic ions have a central atom that is sp2-hybridized ?…

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Q: If 10.0 moles of O₂ are reacted with excess NO in the reaction below, and only 6.2 mol of NO were…

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Q: Here are sketches of four electron orbitals:

A: Shape of s-orbital :

Q: procedure calls for 60 ml of a 0.4N NaOH. If 8N NaOH is on hand, how would you make 100 ml of 0.4N?

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A: The mechanism of given reaction can be explained as:  The amide group reacts with SOCl2 forming an…

Q: A student made measurements on some electrochemical cells and calculated three quantities: • The…

A: Solution

Q: ง What is the AGrxn° at 298 K for

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Q: A) compound X has the formula C8H15OCl. Calculate the double bond equivalents in this molecule B)…

A: Double bond equivalents (DBE) = (2C + 2 + N -H - X)/2

Q: Which of the following reactions will result in a decrease in entropy?

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Q: Which of the following compounds are soluble in water? Drag the appropriate items to their…

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Q: A 2.56 gram sample of an unknown gas is found to occupy a volume of 1.64 L at a pressure of 958 mmHg…

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Q: C CH NBS CC14 1.NaNH2, NH3 2. CH3CH₂1 KMnO4 H3O+

A: NaNH2 deprotonates terminal alkynes to form R-C≡C- ion and NH3(g).  R-C≡C- ion reacts with alkyl…

Q: What is the sugar classified as - ketopentose - aldohexose - aldopentose - ketohexose

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Q: ||| O CHEMICAL REACTIONS Calculating ion molarity using solute mass A chemist prepares a solution of…

A: Here we have to  determine the  molarity  of chloride ion if 64 mg of MgCl2 is dissolved  in 100 ml…

Q: 5. When the Pb²+ concentration is 6.80×104 M, the observed cell potential at 298K for an…

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Q: A 24.0 liter gas storage container containing on CO2 at a pressure of 5.53 atmospheres and a…

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Q: Calculate the heat evolved (in kJ) when 248.27 g of carbon dioxide (CO2) is formed in the combustion…

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Q: If a fifth solution (solution E) is made by mixing 10mL of soln C and 10mL of soln D, how will…

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Q: You need to prepare an acetate buffer of pH 5.455.45 from a 0.843 M0.843 M acetic acid solution and…

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Q: Correctly name the compounds or write the formulas. Identify each compound as molecular,…

A: Here we have to  write the  name of compound, its formula and types of compounds.

Q: Eic current of 25.10 A transports 790. μµC of charge. Calculate the time this took. your answer has…

A: Charge (q) = current (i) × time (t)

Q: Given the following thermochemical equations: 2 OF2 (g) → 02 (g) + 2 F2 (g) 2 CIF (g) + O2 (g) →…

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Q: A chemical reaction took place in a 5 liter cylindrical enclosure fitted with a piston (like the…

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Q: Is this reaction going via Sn1, Sn2, E1 or E2 mechanism - explain?

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Q: The pH at the equivalence point of the titration of acetic acid solution by sodium hydroxide…

A: The correct answer will be --> b) 7.00 < pH < 11.00

Q: Malonic ester synthesis A-291clon Write the reaction showing all intermediates when H₂C(CO₂Et)2…

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Q: Outline all steps in a malonic ester synthesis of each of the following: (a) pentanoic acid, )…

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Q: QUESTION 2 A student cleans their round bottom flask and rinses it with water, but fails to dry it…

A: The organometallic compound taken is methyllithium. Chemical formula of methyllithium is CH3Li.

Q: Which of the following are aromatic? Check all that apply. O CH₂=CHCH=CHCH=CH₂ U

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Q: Draw an alkyl halide and choose the best reaction conditions that would undergo an SN2 reaction to…

A: Given : structure of product Tip : SN2 reaction occurs in one step

Q: For a certain chemical reaction, the standard Gibbs free energy of reaction at 5.00 °C is 92.4 kJ.…

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Q: 1. Which of the following represent impossible combinations of n and l?  (a) 1p, (b) 4s, (c) 5f,…

A: Since you asked for multiple question and no one specified that which is solve. So only solve first…

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A: As it is a multiple question so according to guidelines we will do first one,for rest questions…

Q: Correctly name the compounds or write the formulas. Identify each compound as molecular,…

A: This problem is actually based on general organic and inorganic chemistry. We have to write down or…

Q: Molecular Formula CH3NH2 C₂H60 (2 structures) C₂H₂Cl₂ (3 structures) Structural Formula Line-bond…

A: Note- Bond line structure - Only C-C bonds are represented.  Hetroatoms are always represented.…

Q: Carbon tetrachloride, an important industrial solvent, is prepared by the chlorination of methane at…

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Q: 4) Draw the products of the following reactions: a. H₂, catalyst + 2 CH₂OH acid What is the general…

A: In the first reaction, the given carbonyl compound reacts with hydrogen in the presence of a…

Q: An electric current of 155.0 mA flows for 42.0 minutes. Calculate the amount of electric charge…

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Q: Calculate the mass percent composition, to the hundredths place, of the following compounds: a.…

A: Given :-  Chemical formula of compounds :  A. Na3PO4  B. C2H6O  To determine :-  Mass percent…

Q: The recommended daily allowance of sodium is 2,300 mg per day for adults. How many gramsof sodium…

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Q: Hydrogen produced from a hydrolysis reaction was collected over water. The data is compiled in the…

A: Ideal gas equation given as PV=nRT Where  P= pressure  T= temperature n= moles V= Volume  R= gas…

Q: What is the total mass of the excess reactants left over after the reaction is complete? total mass…

A: The given balanced equation is- Al2O3 (s)+6NaOH (l) + 12HF (g)→2Na3AlF6 +9H2O (g)

Q: Is this reaction first, seccond or zero order?

A: Given : chemical reaction Tip : slowest step is the rate determining step

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.