How much (in atomic mass units, amu) would 78 atoms of an element with atomic mass 107.18 weigh? Enter your number with 2 decimal places.

Q: जोपड व तायफरवलाड्ल निम कक् षजरकी डिळल)०्दूण्णा ve a OH

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Q: 4. Provide an adequate route (reaction scheme) for the following reaction HO HO

A: ->First of all there occur elimination reaction and alkene formed. ->Alkene give antimorvnikov…

Q: Consider the reaction: 2C0(g) + O2(g)=2CO2(g) AH° = -566 kJ Which of the following disturbances will…

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Q: 9. Using cyclopentanone as your starting material, and using any other reagents of your choice,…

A: The steps involved in the given transformation are 1. Abstraction of proton by base 2. Nucleophilic…

Q: A 35mg sample of a protein is dissolved in 10 ml of water at 25 degree Celsius and an osmotic…

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Q: How many grams would 71,934,010,495 atoms of a substance weigh if it has a molar mass of 23.7889…

A: Number of atoms = 71,934,010,495 atoms  6.02×1023 atoms = 1 mol 71,934,010,495 atoms =…

Q: Question # 1: Design a suitable synthesis plan for the preparation of 2-cyclohexylacetic acid…

A: Note: According to our guidelines we are supposed to answer only one question.  Kindly repost other…

Q: What is the reaction between 2,4-dinitrophenol and methanal (formaldehyde)? OH NO2 || H. NO2 O=U

A: This is an aromatic electrophilic substitution reaction.  The electrophile is substituted at the…

Q: Match the type of functional groups present in a polymer chain with the pH at which they are most…

A: To choose the pH at which amine and carboxyl groups are soluble.

Q: Which of the monomers shown forms the addition polyme polystyrene ? CI H. H. CN

A: Polymerisation is a process of reacting monomer molecules together in a chemical reaction to form…

Q: The diagram below shows an agricultural production function. 900- 800- 700- 600- 500 400- 300 200-…

A: Given that, from the diagram of an agriculture production plot At point A, the number of farmers is…

Q: 4.2. How would you carry out the multistep syntheses to produce D and E below? Provide the…

A: The conversion given is,

Q: The following information is given for copper at 1atm: AHvap(2567 °C) = 305 %3D boiling point 2567…

A: Boiling point of copper= 2567 °C                  ∆HVap = 305 KJ/molMelting point of copper = 1083…

Q: <. aph shows a heat curve for an unidentified substance disco 400 380 360 340 320 300 280 260 240…

A: From the heating curve,  Fusion is the temperature at which vapor pressure of solid is equals to…

Q: Consider the reaction: N2(g) + O2(g) = 2NO(g)- %3D A closed system initially containing 0.18 M N2(g)…

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Q: Determine the pH of a 0.650 M solution of magnesium nitrite, Mg(NO2)2 at 25 °C. A solution…

A: Answer: Hydrolysis of the salt of weak acid and strong base or strong acid and weak base takes place…

Q: Find the concentration of Hg3+ in 0.050 M KI saturated with Hg,I,. Include activity coefficients in…

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Q: 3. Calculate the equilibrium constant of the following reaction: H2S = 2H* + S²- Knowing that H2S…

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Q: Without doing any dilution, solutions with higher concentration of Vitamin C are: Darker B lighter…

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Q: || The temperature of a sample of copper increased by 25.0 °C Substance Specific heat J/(g °C) when…

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Q: Azulene, an isomer of naphthalene, has a remarkably large dipole moment for a hydrocarbon (u = 1.0…

A: Given: Azulene is an isomer of naphthalene. It has a very large dipole moment for a hydrocarbon…

Q: Which of the following ionic compounds has the highest lattice energy? Link to Physical Constants…

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Q: What is the major product of the following reaction? O,N. 'N' H A CI O,N. Ob. O,N. CI O,N- H od O,N

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Q: Name and identify structure below. 1. How many C atoms are present? 2. How many H atoms are present?…

A: The compound given is,

Q: Which of the following salts is more solubility in an acidic solution than in a neutral solution?…

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Q: What type of titration according to classification includes the quantitative determination of…

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Q: Ozone (O3) in the atmosphere can react with nitric oxide (NO): 03 (g) + NO (g) → NO2(g) + 02(g) What…

A: Given: H = -199 kJ/mol S = -4.1 J/K mol T = 25oC

Q: Let's Find Out: More on Boyle's Law equation Let's Do It This Way: Complete the diagram below by…

A: There is following formula used for Boyle's law -  P1V1 = P2V2  Where -  P1 = initial pressure  V1 =…

Q: Draw 1,2-dichloro-3-ethylbenzene Draw 2,4-dichloro-1-ethylbenzene Select Draw Rings More Erase…

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Q: 8. The questions below refer to the following information: The rate constant k for the reaction…

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Q: THE NORMAL CONCENTRATION OF 0.1 M OF SODIUM NITRITE SOLUTION (NaNO2) IS EQUAL TO Choose one answer:…

A: We know that ,Normality (N)=X × Molarity (M) Where X is no of cations or anoions produced by the…

Q: Complex [Co(en):] [Co(CN)} [CoF6] [Co(NH;)6]* [Co(H2O),]*" Ao (cm ) 23,160 33,700 13,100 23,000…

A: 3. a. We have to tell among the given complexes, which two would be best explained by the σ-only…

Q: 2 Mg + O2(g) ! 2 MgO What is the limiting reactant if 2.2 g of Mg is reacted with 4.5 L of oxygen at…

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Q: Divinyl benzene is used whe preparing the resin to obtair 1-3D Interlaced Synthesis 2- Increased…

A: Polymers is class of natural or synthetic substances composed of very large molecules, called…

Q: Part C AHm = 91 kJ, ASm = -153 J/K, T = 300 K Express your answer as an integer. ? AGixn kJ Submit…

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Q: Draw the three neutral-species of fluorescein (quinonoid, lactone, zwitterion)

A: p-quinoid, lactone and zwitter ion are the three neutral species of fluorescein.

Q: Experiment [ICI]/(mmol dm³) [H,)/(mmol dm) v(moldms) 1 1.5 1.5 3.7 x 107 2 3.0 1.5 7.4 x 10 3.0 4.5…

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Q: 3. Calculate the equilibrium constant of the following reaction: H;S = 2H* + S Knowing that H;S has…

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Q: TFA CHo Clz

A: We have to give the reaction mechanism.

Q: Question 4 of 6 Determine E° for the reaction Al(s) + 3 Ag (aq)- 3 Ag(s) + Al (aq). V Standard…

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Q: The half-live of americium-241 is 432 y. If 0.0002 g of americium-241 is present in a smoke detector…

A: Given: Mass of isotope = 0.0002 g. Half-life of isotope = 432 yr.

Q: at is the concentration eaction is 2 seconds? c)1.01 x 102 M d) 6.22 x 103 M Q5) The following…

A: Given: Rate constant at 550 oC = 1.8 M-1s-1  And rate constant at 25 oC = 2.8 M-1s-1

Q: What will be the solubility of Fe(OH)3 (Ksp = 1.6 × 10–39) in: a. 0.0250 M FeCl3 solution? b. a…

A: a) Given: Ksp = 1.6 × 10-39  And concentration of FeCl3 = 0.0250 M Since FeCl3 is a completely…

Q: hy does the diazonium ion add in para position to the dimethylamino group? (Check all that apply.)…

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Q: A. Is soap solution acidic or basic? Write the chemical equation when dissolving soap in water.  B.…

A: A.  A soap is a sodium or potassium salts of higher fatty acids, like sodium palmitate, potassium…

Q: Identify each of the following elementary reactions as unimolecular, bimolecular, or termolecular,…

A: The reactions given are,

Q: If 7.3 grams of sodium carbonate are used in the reaction and the result a 74.0% yield,  what is the…

A: The balanced reaction taking place is given as, =&gt; Sn3(PO4)4 + 6 Na2CO3 → 3 Sn(CO3)2 + 4 Na3PO4…

Q: The temperature of an object increases by 39.4 °C when it absorbs 3715 J of heat. Calculate the heat…

A: Given, Mass of the object (m) = 393 g Change in temperature (∆T) = 39.4 °C  Heat absorbed (Q) = 3715…

Q: For each of these molecules, identify the proper MO diagram Diagram A Diagram B and the number of…

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Q: Why is it impossible to have only one enantiomer of thalidomide under biological conditions?

A: Thalidomide consists of two enantiomers, R and S. The (R)-enantiomer has sedative effects whereas…

Group 14 Elements

The following elements come under group 14 of the periodic table.