For the following atoms, deduce the number of unpaired electrons for the correct ground state configuration. ___  Ra ___ Au ___ O ___ F ___ Ca

Q: uestion 14 What is the pH of a 1.29 x 10-3 M HCIO4 solution? (the answer should be entered with 3 si...

A: Here, we are going to calculate the pH of HClO4 solution. pH is defined as the negative log of hydro...

Q: The illustration to the left represents a mixture of nitrogen ( blue ) and hydrogen ( light blue ) m...

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Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium b...

A: Given, Aqueous hydrobromic acid reacts with solid sodium hydroxide to produce aqueous sodium bromide...

Q: can someone draw the mechanism for me? I knew NaOCH3 added a molecule but I always assumed a halide ...

A: Here NaOCH3 acts as base to form enolate ion with the given ester molecule. Then this enolate attack...

Q: 1.    A Brønsted–Lowry acid is a     ? a.    Proton donor b.    Proton acceptor c.    Electron-pair ...

A: The substance that donate proton (H+ ion) is know as Bronsted Lowry acid and the substance that acce...

Q: 3. Use the information in the table below to answer questions 3a and 3b about the Krp protein with t...

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Q: Question 9) The following reaction: 4NH3 + 502 → NO + 6H20 If the rate of consumption of ammonia is ...

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Q: If exactly 1.00 liter of 2.0 M NH3 (final concentration) is required to dissolve 5.0 mmol of the sil...

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Q: Place the following substances in an INCREASING order based on the expected pH of an aqueous solutio...

A: Acids have the low pH values and they give proton in the aqueous solution. Bases have high pH values...

Q: How will you test for the presence of the halogen in iodoform?

A: We can test the presence of halogen in iodoform with help of the Lassaigne test.

Q: Which one of the following statements about solid Cu (face-centered cubic unit cell) is incorrect? O...

A: an fcc unit cell the total number of atoms is:(a) 8 corner atoms with each one contributing 1/81/8 o...

Q: Calculate the value of AH for the reaction: 3 Fe (s) + 4 H20 (g) Fe304 (s) + 4 H2 (g) Fe (s) + H20 (...

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Q: A metal crystallizes in a face-centered cubic lattice. The radius of the atom is 128 pm and the dens...

A: A face centered unit cell is composed of a cube, and contains atoms on the each face, and at the cor...

Q: Draw a graph of the expected relationship between hydrogen isotope ratio in summer and rooting depth...

A: Given:-   Draw a graph of the expected relationship between hydrogen isotopes ratio in summer and ro...

Q: 4. Why do silver salts dissolve readily in 3 M HNO3? Why is the fresh chlorine water critical to tes...

A: Soluble silver salts dissolve in H2O if it is either neutral pH or acidic. But, if the water is basi...

Q: At a certain temperature, the ?p for the decomposition of H2S is 0.885.   H2S(g)↽−−⇀H2(g)+S(g) Ini...

A: Given data kp=0.885 Initial pressure of H2S=0.244 atm Total pressure=??

Q: 40 2) In each case, tell whether cis and label them as cis and trans. a) 2- butene 5) 2- methylprope...

A: Cis-Trans: When the substituent groups are oriented in the same direction, the diastereomer is refer...

Q: 4. The major ways to utilize, capture, or store the sun's energy are solar thermal, solar voltaic, b...

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Q: The cell notation for the Galvanic cell is

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Q: stion 11 Determine the molar concentration of a Ca(OH)2 solution whose pOH is 1.51 at 25.0 C. (the a...

A: 1 mole of caoh2 produced 2 mole of OH- ions

Q: 3. What is the final temperature of 100 g of ice at -5 °C added to a styrofoam cup filled with 2500 ...

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Q: Calculate the density of (101) of Ag.

A: Relative density of silver (Ag) = 10.8 Density of water = 1000kg/m3  

Q: 6.Why is painting a metallic surface not considered an effective way to stop corrosion? a. the paint...

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Q: Water is a _____ solvent for HClO4, HCl, and nitric acids because all three are completely ionized i...

A: HClO4, HCl, and nitric acids are strong acids in an aqueous solution, and they dissociate completely...

Q: eigy dlagladm were calalyzed, the effect would be to: Reaction Coordinate O A increase line segment ...

A:

Q: Calculate the moles of anhydrous (dry) KAl(SO4)2 that were present in the sample and the ratio of mo...

A: Introduction :  Empirical formula is the formula of a compound from which one can find the ratio of ...

Q: 2- In the reaction HSO4 (aq) + OH (aq) S04( + 20 (1) the conjugate acid-base pairs are: OA. pair 1: ...

A: According to Bronsted- Lowry acid base theory, one who gives H+ is acid and the one who accept H+ is...

Q: questions

A: This is a multiple questions.According to the guidelines, in multiple questions, we can solve only t...

Q: Nido-CB5H9 Does this molecule have resonance structures? If so, draw each structure

A: Nido CB5H9 is isolobal to B6H10 which has nido structure. No any conjunction present in structure of...

Q: What is the true density of Zr, an HCP crystal, in g/cm3 ? Atomic Number = 40 Atomic Weight = 91.22 ...

A: Recall the equation d = (Z× Atomic number)/(Na×a3) d= density Z= total no of atoms in  Na= Avogadro ...

Q: 3. Will the following reaction occur spontaneously at 298K if [Fe 2*] = 0.60M and [Cd 2*] = 0.010M? ...

A: Given reaction is :  Cd (s) + Fe2+ (aq) <-----------> Cd2+ (aq) + Fe (s)  [Fe2+] = 0.60 M  [Cd...

Q: The ΔG°rxn for the reaction: A (g) + B (g)   2 C  is +192 kJ/mol at 25 °C.  What is the equilibrium...

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Q: If the reaction with the following potential energy diagram were catalyzed, the effect would be to: ...

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Q: The space-filling representation of a crystalline potassium provided below is an example of a unit c...

A: Ans : b) Simple Cubic Unit cell Contain  the equivalent of 1 atom.  

Q: arachno-B4H10  Does this molecule have a resonance structure? If so draw each one.

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Q: Predict whether each compound is soluble or not in water. Show the chemical equation for its dissolu...

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

Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and ...

A:  The Carnot engine estimates the maximum efficiency any heat engine can obtain.   Given m=85.0 kg L=...

Q: For the following reaction,23.1 grams of carbon disulfide are allowed to react with 89.2 grams ofchl...

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Q: How many atoms are there in a body-centered cubic unit cell of rubidium? а. 4 b. 8 О с. 1 d. 6 Ое. 2

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Q: What is the chemistry behind the following: 3. Compare iron and aluminum in terms of their property...

A: Compare iron and aluminum in terms of their property to resist corrosion given below.

Q: What is the pH for a solution at 25 °C that has a OH" concentration of 3.08 ×10-4 M?

A:

Q: A metal crystallizes in a face-centered cubic lattice. The radius 3 the atom is 196 pm and the densi...

A: Given that, radius, r= 196 pm  Type of lattice= face centred cubic  Volume = ?  

Q: When writing the Kc expression for the equilibrium below, which of the following terms (with proper ...

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Q: What is the purpose of the acetic acid experiment?

A: We have to discuss about the purpose of acetic acid experiment.

Q: Why do almost no bubbles form inside the bottle of carbonated soda (ex. Sprite) when adequately subm...

A: We know that  solubility is inversely proportional to temperature. this means if  temperature is hig...

Q: Phosphorus pentachloride decomposes according to the chemical equation PCI, (g) = PCI, (g) + Cl, (g)...

A: Kc ( equilibrium constant ) is the ratio of concentration of products to concentration of reactants ...

Q: 4. Most monosaccharides and disaccharides undergo fermentation in the presence of yeast. What are th...

A: Most monosaccharides undergoes fermentation in the presence of yeast. Glucose undergoes fermentation...

Q: When a chemical system is at equilibrium, OA. the reaction quotient, Q, has reached a maximum. O B. ...

A: Choose the correct option for the given option-

Q: What volume of oxygen gas is required to react completely with 1.82 mol of nitrogen gas according to...

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: 2. Electrolysis can be used to I. derive a nonspontaneous redox reaction II. convert electrical ener...

A: Electrolysis is a process in which electric current is passed through a substance to effect a chemic...

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.