Direction: Read then solve the question carefully. Click the letter of the corre Question: For 208 Pb, find the net electrical charge of the nucleus.

Q: The data below were collected for the following reaction: CH3Cl(g)+3Cl2(g)→CCl4(g)+3HCl(g) [CH3Cl]...

A: Recall the reaction, CH3Cl(g) + 3Cl2(g) -----> CCl4(g) + 3HCl(g)  Rate=K[CH3Cl]a [Cl2]b --------(...

Q: energy, in J, is

A:

Q: Draw the optical isomers of CH3-CHOH-CHOH-CH3. INDICATE the absolute configuration of each chiral ce...

A: Solution                         Given that  Draw the optical isomers of CH3-CHOH-CHOH-CH3 = ?

Q: Give the IUPAC name. Use the IUPAC 1993 Recommendations.

A: The naming of organic compounds can be done with help of rules of international union of pure and ap...

Q: You    have    a    250    mM    stock solution of    Tris.    What    volume    of    this    stock...

A:

Q: An analytical chemist is titrating 185.8 mL of a 1.200M solution of benzoic acid (HC,H,CO,) with a 1...

A:

Q: alculate the mass of excess reagent remaining at the end of the reaction in which 90.0 g of SO2 are ...

A:

Q: mass

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Q: The product of saponification is called salt. Explain why.

A: Reverse esterification that is the hydrolysis of ester compound is called saponification reaction . ...

Q: [N:(g) + 3B12(g) = 2NB1:(g); AH = -103.7 kJ] Consider this reaction. What will 1 happen if pressure ...

A: Consider a reaction, A(g)+B(g)⇌P(g) Let the reaction is happening in a closed container fitted with ...

Q: A 22.0 g block of copper at 45°C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0.385 J/g...

A: Given data of the following, m=22.0 g T1=45℃ Final temperature T2= ? heat q=2.50 KJ = 2500 J Specifi...

Q: What is the ph of 0.6M acetic acid?

A:

Q: What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr203 wi...

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Q: Pentaborane B5H9(s) burns vigorously in 02 to give B203(s) and H20(1). Calculate AHrxn for the combu...

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Q: pH

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Q: Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium ...

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Q: Mass of beaker 50.5g Mass of marble before reaction 3.0g Mass of marble after reaction 1....

A: Formula of marble-   CaCO3 Reaction of marble with HCl CaCO3 (s) + 2 HCl (aq) →CaCl2 (aq) + CO2 (...

Q: BOYLE'S LAW An unknown gas has an initial pressure of 145 kPa and a volume of 1.1 L. If the volume i...

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Q: where Tis in K and C, is in cal/(g mol)(K). 0. In a steady-state process, 10 g mol/s of O, at 100°C ...

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Q: e percent yield of water.

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Q: A 1.50 g sample of hydrocarbon undergoes complete combustion to produce 8.80 g of CO2 and 5.40 g of ...

A: Note : Recheck values but process is right

Q: answer is given Trispiro[2.2.2.29.26 33]hexadecane. but why it does not start from the right cyclopr...

A: Namenclature of multicyclo compounds. .  Identify the ring which contains largest carbons. . Startin...

Q: What is not correct in computing for the buffer capacity, if an additional acid is added a. The volu...

A: Buffer capacity is the amount of acid or base that it can effectively neutralize.

Q: what is the number of moles of calcium carbonate reacted?

A:

Q: Rank compounds 1 – 4 (shown below) in terms of decreasing rates of cyclic ether formation.

A: Given : structure of ions

Q: H. Draw a plot showing reaction velocity as a function of substrate concentration for Ks = 50 µM, Vm...

A:

Q: Write an introduction about Matter.and Mixtures.

A: Introduction to matter:

Q: Balance the equation representing the reaction between iron(II) exide, FeO, and carbon monoside (CO)...

A: Answer: Balancing of a chemical reaction is based on the conservation of mass, according to which, n...

Q: ow much heat is required to raise the temperature of 1.5 x 103 g of water from 45°F to 130.°F? The s...

A: Given, mass of water = 1.5 × 103 g Temperature increase from initial temperature, T1 = 45 oF = 7.22 ...

Q: Which of the following will immediately produce a layer after the addition of Lucas Reagent?  a. m...

A: A solution of anhydrous zinc chloride in concentrated hydrochloric acid is known as Lucas’s reagent....

Q: Draw the mjor product of both question with mechanism asap

A: Given structure of reactants. 

Q: How much heat is absorbed by liquid water that weighs 550 grams as it is heated from 25C to 95C?

A: Given, mass of water m= 550 g T1=25 ℃  T2=95℃ Cp for water = 4.184 J g-1℃-1 heat q=?

Q: Given the thermochemical equation 2502(9) +O2(9) 2S03(g). AH pxn= -198 kJ/mol, how much heat is evol...

A: Here to calculate total heat evolved in reaction.

Q: Methane burns and give off 192 Kcal/Mol, assuming 90% effeciency in heat transfer. what mass in KG o...

A: Answer: In the process of heating up ice, there will be three steps,  1. Heating of ice up to its me...

Q: The preparations of two aqueous solutions are described in the table below. For each solution, write...

A: Given table is :   

Q: A sample may contain either, both or neither of the following ions: CO32- or SO42-. Prepare a flowch...

A: Qualitative anion analysis refers to qualitative tests that are carried out to identify anions prese...

Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperat...

A: Given-> Weight of Al = 123 gm Weight of Fe2O3 = 601 gm    

Q: Given the thermochemical equation 2502(g) + O2(9) - 2503(9), AH'rxn= -198 kJimol, how much heat is e...

A:

Q: A chemist determines by measurements that 0.035 moles of hydrogen gas participate in a chemical reac...

A: Given,  Moles of hydrogen gas participate = 0.035 mol.  The mass of hydrogen gas participate is:

Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

A:

Q: What is the ratio strength (w/v) of an isotonic solution for pilocarpine hydrochloride SCE 0.24? A. ...

A: Given, SCE (sodium chloride equivalent )= 0.24

Q: Which of the following is NOT an intermediate in the following process? H3O*, Heat OH NH NH3* а. H20...

A:

Q: Calculate the volume in milliliters of KOH needed to prepare 250 mL of a 0.225 M phosphate buffer wi...

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Q: Solution A has pH of 3.20, solution B pH of 12.50, solution C a pH of 7.00, and solution D a pH of 4...

A:

Q: Save What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2...

A: Weight of Cr2O3 = 40.0 gm Weight of Al = 8.00 gm  

Q: Calculate the number of hydrogen atoms in a 130.0 g sample of tetraborane (B,H10). Be sure your answ...

A: Calculation of number of hydrogen atoms:

Q: The organic bases cocaine (pKb = 8.41) and codeine (pKb = 7.95) react with hydrochloric acid to form...

A: Given, Codaiene pKb=7.95 Cocaine , pKb=8.41

Q: How many milliliiters of a 1.25 M HF are needed to make 150 mL of a 0.450 M hydrofluoric acid/fluori...

A:

Q: How    do    you    prepare    25    mL    of    0.4%    (w/v)    cesium    chloride?

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st q...

Q: Enter your answer in the provided box. When coal is burned, the sulfur present in coal is converted ...

A: Molar mass of S = 32 g/mol Moles of S = mass / molar mass = 2950g/(32g/mol) = 92.1875 mol The molar ...

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.