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Q: MCQ 33: Under standard conditions the energy with enthalpy change when 1 mole of an ionic compound i...

A: Lattice Energy is the energy required to separate a mole of an ionic solid compound to gaseous ions....

Q: Match the following molecules with the most significant intermolecular force present in each ammonia...

A: Molecule Most significant Intermolecular forces NH3 Ammonia hydrogen-bonding Cl2 Chlorine Lon...

Q: Match the set-up with the appropriate separation technique. : filtration * distillation

A: In the given question, the experimental setups of two separation techniques are provided and they ar...

Q: MCQ 15: The formula of ethene is A. C,H, B. CH, C.C,H12 D. C,H

A: Hydrocarbons: These are the organic compounds having only carbon and hydrogen in their structural fo...

Q: Enlist the solvents used as stationary and mobile phases in paper chromatography

A: PAPER CHROMATOGRAPHY (PC): Paper chromatography is a technique in which the procedures are performed...

Q: How many moles are in of 52 grams of NH3? (Hint: 1 molecule of NH3 has a mass of 17 amu) * 0.32 mol ...

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Q: Define effective atomic number and apply effective atomic number rule to the following complexes. a)...

A: Metal will be a stable metal if it follow the 18 electron rule. The 18-electron rule determines the ...

Q: A solution of 0.5 M NaOH of volume 100 ml was diluted to 400 ml. What was the Molarity of the soluti...

A: Given: Molarity of initial NaOH solution is 0.5 M. Volume of initial NaOH solution is 100mL. Volume ...

Q: Enlist the solvents used as stationary and mobile phases in paper chromatography.

A: Paper chromatography: It is the technique that is used in order to separate the colored chemical com...

Q: I need help with group exercise three please

A:

Q: Which separation technique could be used to separate a mixture based on differnces in boiling point....

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Q: 1. In the reaction H2 + CI2 2HCI, which substance is the oxidizing agent and which is the reducing a...

A: In a reaction one compound is oxidized and another compound is reduced . 

Q: The spectrochemical series:a. lists metals ions in order of their oxidation state.b. lists metals io...

A: According to the crystal field theory the ligand atom acts as point negative change and the metal ac...

Q: Hi, I would like help with number 5 please!

A: The given equations are : 2NH3(g)+3N2O(g)→4N2(g)+3H2O(l)      ∆H=-1010 kJ         (i) N2O(g)+3H2(g)→...

Q: Maxwell distribution of speeds

A: a gas of many molecules has a predictable distribution of molecular speeds, known as the Maxwell-Bol...

Q: 5) (a) For the Balmer series in the hydrogen emission spectra, which transition has the longest wave...

A: Wavelength is inversely proportional to frequency.  Therefore, longest wavelength means shortest fre...

Q: a) Name each of the following complexes according to IUPAC rules. i) [Ni(NO)2(ONO)(Br)] ii) [Co(NH3)...

A: The IUPAC names of the above-given coordination complexes are as follows:

Q: 11.If ΔG° is positive (+) for a reaction, then 12. Which of the following terms can be used to descr...

A: Welcome to bartleby ! As per company norms we cannot answer more than one question .But I have answe...

Q: Please answer numbers 1-3 in the attached image

A: The molecular formula of the vitamin C is = C6H8O6 The mass of vitamin C is = 0.250 g The number of ...

Q: What is the solution ? Physical chemistry

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Q: For some compound XY (Mol wt. of XY-130 g/mol) at 344.94 K and 1 atm, density-1.65 g/cm3, = 247 J/(m...

A: The Cv,m for compound XY can be calculated using relation : Cp,m- Cv,m =α2 T Vm / κ where Vm or mola...

Q: An estimated amount of 10,000 ethene monomers bond together to make polymer chain of

A: Since we know that when ethene molecule i.e a monomers combined together nearly 2,000 to 20,000 mole...

Q: Write the net ionic equation for the following molecular equation. 3Bal (aq) + 2(NH4);PO4(aq) → Baz ...

A: The net ionic equation is a chemical equation that displays the ions directly involved in the chemic...

Q: How many Faraday is needed to deposit 4 moles of Calcium (Ca) from CaCl2 solution using electrolysis...

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Q: A hypothetical element A has these properties: first ionization energy= 850 kJ/mol second ionization...

A: In the question given, that third Ionisation energy of element A is exceptionally very high as aspec...

Q: What is the molar mass of ammonia: NH3? Round answer and elements to the tenths place. (N = 14.0, H ...

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Q: MCQ 15: The formula of ethene is A. C,H, B. CH3 C.C,H12 D. CGH

A: Alkenes are unsaturated hydrocarbons, with General formula of CnH2n. Where n is Number of Carbon ato...

Q: How will electron pairs behave towards one another according to VSEPR? O They will arrange themselve...

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Q: Use the chart to answer the questions: Part A: For any reaction at equilibrium, which of the followi...

A: At equilibrium, the free energy change will be zero(0). The entropy of liquid will be higher than th...

Q: ICQ 16: The formation of a single product from two reactant molecules is known as A. addition reacti...

A: A chemical reaction is a process in which one or more substance, also called reactant are converted ...

Q: At what speed must electron travel to have a wavelength of 10.0 pm?

A: λ=hmv Lambda = wavelength h = Planck constant = 6.62 * 10-34 Js v = speed of electron m = mass of el...

Q: Determine the symmetry elements of BrF3 E, 20v C2, 20v O E. C2 E, C2, 20v

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Q: HW 8. which of the following molecules has the largest london dispersion forces. a. c8 H18 (octane) ...

A: London dispersion forces are the temporary attractive force that results  when electrons in two adja...

Q: Predict whether or not these substances will mix. Justify your answer. 1. paint thinner and oil ...

A: Hello. Since the question contains more than three sub-parts, the first three subparts shall be only...

Q: Dipole-dipole interactions are hydrogen bonds. weaker than stronger than equal to

A: While intermolecular forces are strong enough to keep molecules together in the solid and liquid sta...

Q: Complete the table:   Pascals Atmospheres Milimeters of Mercury Torr Pounds per Square Inch 883...

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

Q: b) Write the formulas of the following compounds. i) diacetatobromonitritonickelate(II) ion ii) diam...

A: Coordination compounds are also called as complex compounds. These are special compounds unlike doub...

Q: The ions which do not take part in any activity step during a chemical reaction are called

A: A spectator ions is  ions that does not take part in the chemical reaction and is found in solution ...

Q: In a test tube, urea and sodium carbonate was combined. When the test tube was heated, the vapors fr...

A: In a test tube, urea and sodium carbonate are combine. and test tube is heated the Sodium cyanate va...

Q: How many moles of BHCl (acidic salt) would need to be added to 417 mL of 1.33 M B (a weak base) to p...

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Q: I attempted to do this, but i don’t think it’s correct. Maybe you can tell me what I did wrong?

A: According to the Avogadro's law - one mole of a gas contains = 22.4 L = 22400 mL of the gas.    Acco...

Q: For the following conversion, mark the correct agent as Oxidising Agent(OA) or Reducing Agent(RA). M...

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Q: 15 - #13. Be sure each entry you write includes the correct number of significant digits. Thumbs up ...

A: Solution At 25°C, water will ionize as follows: H2O(l) + H2O(l) <--> H3O+(aq) + OH-(aq) the eq...

Q: Q 15: The body of the car is repaired with the help of a filler which is hardened by the addition of...

A: Since we know that the filler used in repairing of car body is to be made harden . The filler are ma...

Q: MCQ 10: The number of positive ions balances the number of negative charges so as to neutralize the ...

A: 1) We know that for a neutral compound number of positive charges is equal to number of negative cha...

Q: Label the parts of the electrolytic cell for electrolysis of PbCl2 1: C12 Pb Cathode Pb+2 Anode nega...

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Q: How are heavy metals and other toxic chemicals removed from drinking water at most city water treatm...

A: The source water in most cases is contaminated with heavy metals and toxic chemicals because of heav...

Q: Please show the mechanism for 2-Heptanone going through Semicarbazone derivative and

A: The question is based on the concept of semicarbazone derivative formation. The reaction of  semicar...

Q: Chemistry Question

A: According to the question, we need to identify which coordination compound is paramagnetic in nature...

Q: Prepare a 0.035 M aqueous solution of PbCl2. Data attached below. a. Is this possible at 25 °C? (Hin...

A: (a)

Designing a Synthesis

Organic synthesis is a branch of chemical synthesis that involves the planned construction of organic compounds/molecules from smaller units that possess functional groups. Friedrich Wöhler was the first scientist who designed the synthesis of an organic compound, urea from inorganic starting materials silver cyanate with ammonium chloride via a simple, one-step synthesis.