A mixture of xenon and hydrogen gases at a total pressure of 965 mm Hg contains xenon at a partial pressure of 313 mm Hg. If the gas mixture contains 20.6 grams of xenon, how many grams of hydrogen are present? g H₂

Q: Using the standard electrode potentia Cl₂(g) +2e-2Cl(aq) E°=+1.36 V; Cd2+ (aq) +2e-Cd(s) E°= -0.40…

A: the standard electrode potentials are given  we need to decide which of the given reactions is…

Q: A coffee-cup calorimeter contains 50 mL of water with an initial temperature of 24.8°C. An unknown…

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Q: Give the mechanism given bleow reactions with curved arrow and all format harges ? 1-ct y

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Q: Calculate the pH and pOH of a solution at 25°C, if [OH-] = 5.3 x 10-7 M. Answer to the hundredths…

A: pH and pOH can be calculated as follows

Q: 1. 0504 2. NaHSO3

A: OsO4 is used dihyroxylation of double bonds. Here methylcyclohexene reacts with OsO4 will gives…

Q: It is desired to inflate a baggie with a volume of 846 milliliters by filling it with xenon gas at a…

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Q: Draw the structure of the tripeptide and determine its name using three-letter abbreviations.…

A: We have to predict the structure and three letter code name.

Q: QUESTION 13 Identify the acid, base, conjugate acid and conjugate base in the following reation:…

A: To solve this problem we will use  Brønsted–Lowry acid–base theory .  According to this theory  An…

Q: Write the equation for Keq for the following as a homogeneous equilibrium (only the aqueous phase)…

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Q: Without doing a calculation, predict the sign of ΔS for each of the following reactions:

A: Given : We have to predict the sign of entropy.

Q: Supply the correct number (i.e. replace the # with a numeral) to complete the name for the molecule…

A: Note : Give priority to functional group. Then assign the numbering to parent hydrocarbon to get…

Q: Give the mechanism of given 03 Joleow reactions > CH3CH2CEC - CH CH

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Q: 1. Cyanogen gas, C2N2, has been found in the gases of outer space. It can react with fluorine to…

A: We have to predict the moles of fluorine needed.

Q: Carbon tetrachloride, CCl4, was a popular dry-cleaning agent until it was shown to be carcinogenic.…

A: 1 mole = 6.022×1023 (Avogadro's number)  The mass of one mole of molecules of a substance is known…

Q: Draw the following structures on MolView. Obtain the charge and bond dipoles of each structure.…

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Q: Identify the incorrect statement regarding oxidation-reduction (redox) reactions. A) The species…

A: In redox reaction , there is reduction and oxidation of species.

Q: How many allylic hydrogen atoms are present in 1-ethylcyclohexene? 1 2 6

A: Given-> 1-ethylcyclohexene

Q: Which is the major product/products of the following reaction? NaOEt Multiple products

A: Note : The reaction is E2 elimination. For E2, H and Cl in antiperiplanar geometry is required. (see…

Q: How many mL of 0.637 M HI are needed to dissolve 8.01 g of MgCO3? 2HI(aq) + MgCO3(s) MgI₂(aq) +…

A: Given-> Molarity of HI = 0.637 M Weight = 8.01 gm

Q: Select the correct product for the following transformation: Br Br NaCN DMSO NC. B A 'Br Br. B CN ?…

A: In this question we have to tell the product of the reaction.

Q: QUESTION 23 For the reaction: A+B CAH=30 kJ. AS = 50 J/K. The reaction is: 01.spontaneous at all…

A: Given-> A + B ---> C     ∆H = 30 KJ = 30000 J (1 KJ = 1000 J)           ∆S = 50J/K

Q: b Consider the reaction: Ca(s) +2 H₂O(l) →Ca(OH)2(aq) +2H2(g) AHfᵒ(kJ/mol) -285.83 -1002.82…

A: Change in Gibbs free energy of reaction determines the spontaneity of the reaction. It can be…

Q: 16) Fill the blank of the following sentences. a) When CH4(g) is removed from the reaction below,…

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Q: Q3 Calculate the pH after 0.020 mol of HCl is added to 1.00L of a) 0.100 M propionic acid (HC3H5O2,…

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Q: How many moles of chloride ions are contained in a 908 mL solution of 0.198 M MgCl2? Report your…

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Q: Five liters of nitrogen gas initially at T = 27 degrees C and P = 1 atm are heated to T = 127…

A: Here 5 L of N2 gas initially at 27°C and P=1atm is heated to 127°C .We have to determine w, ∆E ,∆H…

Q: Nitrogen and oxygen react as follows: N₂(g) +202(g) → 2NO₂(g) Suppose 1.85 mol of N₂ and 48.0 g of…

A: The correct answer is given below

Q: Calculate the [OH-] of a solution at 25°C, if [H] = 9.6 x 101 M. (answer in scientific notation)…

A: The correct answer is given below

Q: 7:12 Question 15 of 50 Submit For the decomposition of mercury(II) oxide, HgO, to mercury and…

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Q: For a particular reaction at 240.4 °C, AG = -486.75 kJ, and AS = 284.22 J/K. Calculate AG for this…

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Q: True or False, formation of the major product has a lower activation energy in the rate determining…

A: Note : More stable intermediate is having low activation energy. A kinetic product is formed at low…

Q: 29. sugar (molar mass a. 100.25 °C b. 0.25 °C Calculate the boiling point of a solution containing…

A: Boiling point of a pure solvent can be increased by the addition of non-volatile solute. It is a…

Q: Consider this reaction: 2HI (g) → H₂(g) + 1₂ (8) At a certain temperature it obeys this rate law. =…

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Q: 4. Let's say that the full volume of your flask is 325 ml. You heat the flask of air in a hot water…

A: Given: Full Volume of flask (initial volume of gas) (V1) = 325 L Initial temperature (T1) = 89.0 oC…

Q: Which of the following bases can deprotonate a terminal alkyne (check all that apply)? O CH3CH₂Li…

A: Acccording to guildline I can answer only First question

Q: 20 21 23 24 :0 F1 2 26 27 2 F2 14/ Select all answers that show the atoms or ions that are…

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Q: Be sure to answer all parts. Oxalic acid (H₂C₂04) is present in many plants and vegetables. (a)…

A: we need to balance given equation and find mass percent of oxalic acid

Q: What is the weight/volume percent (w/v%) of sugar in soda? Assume the average mass of sugar in soda…

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Q: 5. 5 6. 6 The number of orbitals in a 4d subshell or sublevel 7. 7 The number of electrons in a full…

A: The given problem is based on number of orbitals in a given sub-shell and the number of electrons…

Q: Decide whether each pair of elements in the table below will form an ionic compound. If they will,…

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Q: 3. A 4.326 g sample containing ethyl mercaptan (C₂H_SH) was treated with 50.00 mL of 0.1287 M 1₂ in…

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Q: 4. CH3 CH₂₂ [. 2. Zn, H₂0

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Q: The standard voltage, Eº, for the reaction of Zn(s) and Cl₂(g) is 2.12 V. What is the standard Gibbs…

A: We have to predict the Gibbs free energy change.

Q: 2. In each of the following sets of diatomic molecules, draw the molecular orbital correlation…

A: In this question some diatonic molecules are given and asked their HOMO LUMO orbitals, magnetic…

Q: 7. Draw the structure of the reactant that produces the molecules shown for each of the following…

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Q: Balance the reaction between H3ASO4 and Hg to form H3A5O3 and Hg2+ in acidic solution. When you have…

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Q: What is the IUPAC name of this compound?

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: 8. CHz CH Cl3 кон >

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Q: A galvanic cell was constructed with a nickel electrode that was dipped into 1.4 M NiSO4 solution…

A: Given-> Ecell = 0.502 V E°cell = 0.487 V [Ni2+] = 1.4 M [Cr3+] = ?

Q: if 34.1g of Nal (MM= 149.89g/mol) are added to a 500.0mL volumetric flask, and water is added to…

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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.