ΔHf

Q: What is the pH of a 0.100 M solution of generic diprotic acid, which has a Kay of 21x 10 and K22 of ...

A: pH is defined as the negative logarithm of hydrogen ion(H+ ) concentration. pKa is defined as the ne...

Q: The standard cell potential (E° cell) for the reaction below is +0.63 V. The cell potential for this...

A:

Q: The value of ΔS° for the formation of POCl3 from its constituent elements, P2 (g) + O2 (g) + 3Cl2 (g...

A:

Q: What is STP? Temperature 273 K and 760 mm Hg Temperature 13.3 psi and 1 Torr O Temperature 273 K and...

A: STP means Standard temperature and pressure

Q: What are the important data that you need before constructing the molecular model of a molecule?

A: We will write the required explanation

Q: Chemistry Question

A: Heat is a form of energy. Energy is the capacity to do work. The process which takes place on it's o...

Q: Draw the structure for the peptide FCA.

A:

Q: Find AH for C4H10 (g) + 8 H2O (g) → 4 CO2 (g) + 13 H2 given C4H10 (g) + 4 H2O (g) → 4 CO (g) + 9 H2 ...

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Q: Draw the structure(s) of the major organic product(s), for each of the following reactions.

A: Oxymercuration reaction: The alkene gives an electrophilic addition reaction to form alcohol. When t...

Q: (a) Classify the following reactions as acid/base, precipitation or redox.(i) 2HCl (g) + F2  (g)→2HF...

A: Applying definition of different type of inorganic reaction.

Q: OH BrCH2 COCH, CHCHN Co,CH heat The synthesis of this morpholino derivative occurs in several steps....

A: The details solution for this reaction is provided below in attach image.

Q: Draw the structure of the aldehyde or ketone and the Grignard reagent that will react to form the fo...

A: Grignard reagent is formed when magnesium reacts with an alkyl or aryl halide. Chemical formula for ...

Q: 8

A: Solution of 8 :

Q: A water sample was tested for water hardness. A 50.00 mL sample, prepared and buffered to pH 10, req...

A: Please have a look into the solution:

Q: Which one of the following statements best explains why the boiling points of the halogens increase ...

A:

Q: A 44.0 g sample of liquid water at 18.0 degrees celsius ends up as ice at -14.0 degrees celsius. How...

A:

Q: 35

A: Del G= Del H-TDel S

Q: Consider the buffer system of ammonia, NH3, and ammonium ion NH4+. (Ka= 5.6 x 10-10). a) What is the...

A:

Q: 23

A: There are different type of interaction between solute and solvent and name according the way they i...

Q: Please solve the following and indicate the steps in preparing the solution.

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: you can dissolve aluminum in copper (II) chloride in a single replacement reaction. If you react and...

A: When stoichiometric coefficient results in the equal number of atoms of each element on both the rea...

Q: What is the bond length of beta-carotene

A: Structure of beta-Carotene is as follows:

Q: Strontium crystal has a mass density of 2.64 g/cm' and a molar mass of 87.62 g/mol Estimate the free...

A: Answer is explained below.

Q: A novel new method of peptide synthesis involves formation of an amide bond by reaction of an a-keto...

A: In this question, we want to draw curved arrows on the reactant Molecule. You can see details Soluti...

Q: What are the molecular geometry, bond angle, and bond lengths of beta-carotene?

A: We will write the required information

Q: A solution was prepared by dissolving some acetamide, CH2CONH2, in 65.0 g of pure water. The boiling...

A: Given: Acetamide as a solute. Pure solvent: water  (T)water = 273 K Weight of solvent = 65 g = 0.065...

Q: (a) Which of the following compounds is/are soluble in water at room temperature?(i) Magnesium carbo...

A: For a substance to be soluble in water it has to be polar in nature in other words it has to be ioni...

Q: If a reaction produces fewer gas molecules than it consumes, ΔSº <0. True or False

A: Entropy is the measure of a system’s thermal energy per unit temperature that is unavailable for doi...

Q: X-rays from a copper X-ray tube (λ = 1.54 Å) were diffracted at a scattering angle of 14.22° by a cr...

A: X-ray diffraction is one of the best methods for knowing the structure of a solid.  In this process,...

Q: 21

A: Given: Na2S FeCl2 AgNO3 KF

Q: Answer both

A: 13. Isoelectronic species are those species which have same number of Electrons. I-, Te-2, Cs+, Ba+2...

Q: Heterocyclic compounds can undergo nitration reactions with some regioselectivity, giving products i...

A: Nitration reaction1-In nitration of quinoline-N-oxide, concentrated HNO3 is treated with H2SO4 to cr...

Q: A container of internal volume 22.0 m3 was punctured, and a hole of radius 0.050 mm was formed. If t...

A: Theoretical Formula

Q: If 1.7 moles of ammonium phosphate reacts with zinc nitrate, what will be the actual yield (in moles...

A: 2(NH4)3PO4 + 3Zn(NO3)2 → Zn3(PO4)2 + 6NH4NO3  From this Balanced chemical equation we get that ; 2mo...

Q: The rate law for this reaction is rate = ________. A) k[A][B]B) k[P]C) k[A]2[B]D) k[A]2[B]2E) k[A]2

A:

Q: the number of copper atoms in a 3.0g lump of copper is 2.8x1022 .how many electrons present in the s...

A: Number of copper atoms = 2.8 × 1022  We need to determine number of electrons present. 

Q: An electron behaves both as a particle and a wave.   True  False

A: According to Plank's quantum theory light has both particle and wave nature. 

Q: What is the lewis structure of Beta-Carotene?

A: Answer - Beta carotene - Beta carotene is a red-orange pigment found in plants and fruits, especiall...

Q: :NH2 NH3 NH, CN hydrolysis CN R coo e-amino acids can be prepared by the Strecker zpathesis, a two-s...

A: Strecker's synthesis is widely used in the production of o-aminonitriles. It consists of two steps w...

Q: 10.16 Design a preparation of each of the following compounds from an alcohol using sulfonate ester ...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: EXPERIMENT : CONDUCTOMETRIC TITRATION OF A MIXTURE OF ACIDS WITH A STRONG BASE I want at lest 10 Pre...

A: Conductometric titration -in these method the titrant are used for the amount of analyte are present...

Q: Explain why chlorine gas can be prepared by electrolyzing an aqueous solution of NaCl but fluorine g...

A: We wil write the required explanation

Q: In the following complex compound, there are ___________ d-electrons. [Co(NH3)6]^2+

A: CoNH362+ The IUPAC name of the given compound is hexaammine cobalt(II) ion. The central metal atom o...

Q: 12

A:

Q: CH3 NH3, H* H3C H3C CH `N' Substituted pyrroles are often prepared by treatment of a 1,4-diketone wi...

A: In the given chemical reaction, 1,4-diketone is reacted with ammonia to form the desired product. Th...

Q: NaOH + 2 H, Explain why more than two equivalents of the aldehyde was needed in order to optimize th...

A: Mixed aldol reactions involve two different carbonyl compounds. Up to four products are possible (tw...

Q: What is the name of the complex [Cu(NH3)4(H2O)2]2+? none of these tetraamminecopper(II) di...

A: complex compound: a compound which doesn't loses its identity when dissolved in aqueous solution is...

Q: 1. A sample of oxygen has a volume of 4.68 L at a pressure of 1520. mm Hg. What would be the pressur...

A: All questions can be solved using Ideal gas equation: PV = nRT

Q: What is the concentration of X in a 0.150 M solution of the diprotic acid H,X ? For H,X K = 4.5 x10 ...

A: Given : Concentration of H2X = 0.150 M   Ka1 of H2X = 4.5 X 10-6    And Ka2 of H2X = 1.2 X 10-11    ...

Q: :O: NH, CN :NH2 NH3 hydrolysis R H. CN R a-amino acids can be prepared by the Strecker synthesis, a ...

A: We have to write the mechanism for the given Strecker synthesis of Amino acid.