Match the following electron configurations to the correct atoms or ions. v 1s22s22p6 v 1s22s22p63s²3p6 | 1s22s22p63s²3p6 4s² 3a8 15252p®3s²3p2 A. Si B. Ca 2+ C. Ni D. Na +

Q: After performing precipitation gravimetry, Asta placed the weighing form inside the crucible, heated...

A: The average of these masses is : 23.1136 + 23.2125 + 23.4120 + 23.11394 = 23.2130 

Q: 76. Predict the standard cell potential for the following re- action at 25°C. Zn(s) + Fe*(aq) Zn²*(a...

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Q: The half-life of a first-order reaction is 13 min. If the initial concentration of reactant is 0.085...

A:

Q: Fumaric acid is an organic compound composed of 41.39% C, 3.47% H, and the rest oxygen. If 0.204 mol...

A: % of C = 41.39 % of H = 3.47 % of O = 100- 41.39 - 3.47 = 55.14

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater...

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL heigh...

Q: A gas made up of atoms escapes through a pinhole 0.799 times as fast as Kr gas. Write the chemical f...

A: Given data, Molar mass of Kr =83.798 g mol-1 Rate of Kr = r  Rate of unknown = 0.799 r Molar mass an...

Q: Which among these objects should you use to filter the precipitate in precipitation gravimetry?   D...

A: Please find your solution below : Gravimetry is a method of quantitative determination of analyte on...

Q: Why should you know the composition of the weighing form?   So that it can be filtered properly   ...

A: Please find your solution below : Gravimetry is a method used for the quantitative determination of ...

Q: Given the following data, determine the order of the reaction with respect to NO] and the overall re...

A:

Q: Write balanced equations for each of the processes, choosing from the following substances as reacta...

A: Balancing equation:

Q: Combustion of hydrocarbons such as pentane (C,H12) produces carbon dioxide, a "greenhouse gas." Gree...

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Q: Cu:O + c c Cu +co2 CO2 -> Cu = Cu = %3D C = C =

A:

Q: Use the thermochemical data that follow to calculate the value of ΔH° for the reaction: 4 B  2 A + C...

A: Thermochemistry can be defined as the branch of chemistry that deals with heat energy associated wit...

Q: Sketch the titration curve that will be obtained when 50 mL of 0.05 M glycine at pH15 is titrated wi...

A: Amino acids are amphoteric in nature due to the presence their ionizable α-amino and α-carboxylic ac...

Q: elements, identified by their electron configurations: A - [He]2s 22p 5   B - [Ar]3d 64s 2 Select ...

A: From the electronic configuration the elements are, A = Nitrogen (N) B = Iron (Fe) Nitrogen is non-m...

Q: The empirical formula a compound is C 2H 40 and its molecular weight was determined to be approximat...

A: Empirical formula is the simplest ratio of atoms present in molecule. Therefore ratio of elements C:...

Q: During osmosis Select the correct response: gases diffuse through a membrane into a solution and bui...

A: The osmosis is a process by which the solvent molecules passes through the membrane which is a semip...

Q: In the following reaction, the rate of appearance of NH3 is 0.15 mol L•min. What is the rate of reac...

A:

Q: 211.5g of glucose is dissolved in enough water to make 635.0ml of solution. (Molar mass of glucose i...

A: Given, Note: 1000 mL = 1 L Mass of glucose = 211.5 g Volume of the solution = 635.0 mL = 0.635 L Mol...

Q: What is the empirical formula for a compound containing 59.72% Tin 16.10% sulfur and the remainder o...

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Q: 2/5 Liquid hexane (CH3(CH2)¸CH3) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxi...

A:

Q: 1. I have problems understanding the results of this experiment, could you help me by explaining the...

A: In order to obtain the result of the experiment, we have to find the most suitable wavelength to mea...

Q: For Problem no. 21-22 At elevated temperatures, dinitrogen pentoxide decomposes to nitrogen dioxide ...

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Q: What advantages and disadvantages does water have as a recrystallization solvent?

A: Recrystallization is used to purify chemicals by dissolving both impurities and a compound is dissol...

Q: If 3830 J of heat is added to a calorimeter containing 75.40 g of water, the temperature of the wate...

A:

Q: Identify which of following alkyl halides undergoes solvolysis most rapidly. Br II Br II Br

A: We are given three alkyl halides and asked which alkyl halide undergo solvolysis faster. 

Q: Consider the following rate law expression: rate = k[A][B]. Which of the following is not true about...

A:

Q: Calculate the mass percent by volume of 41.6 g of glucose (C₆H₁₂O₆, MM = 180.2 g/mol) in 325 mL of s...

A: The mass of solute in gram present in 100 mL solution is known as the mass percent concentration of ...

Q: solution is prepared that contains 12.5 mL propylamine (CH3CH2CH2NH2, d = 0.719 g/mL, 59.11 g/mol, K...

A:

Q: What is the product of the following reaction?

A:

Q: Question 9 of 20 Submit Draw the major product of the substitution reaction shown below. Ignore any ...

A: SN1 reaction: The SN1 reaction is a substitution reaction in organic chemistry, the name of "SN " st...

Q: OMg +o -> MgO Mg = Mg = %3D %3D 0 = %3D %3D

A: Complete the reaction by using coefficient---

Q: A system is compressed from 250 L to 5.0 L at a constant pressure of 10.0 atm. What is the amount of...

A: Consider the given information is as follows; Initial volume V1 = 250 LFinal volume V2 = 5.0 LPressu...

Q: Which is longer—a C–H bond or a C–O bond?        Which is shorter—an N–H bond or a C–H bond?   Arran...

A: stronger the bond between atoms, smaller will be there bond length.   

Q: Indicate the oxidation state of the underlined element in the following species. Shem all pertinent ...

A:

Q: Given the following reaction at equilibrium, if Kc = 5.84 x 10° at 230.0 °C, Kp =. 2NO (9) + 02 (9) ...

A: Consider the given information is as follows; Temperature (T) = 230.0°C = 230.0 + 273.15 = 503.15 K ...

Q: 2) The dehydrogenation of benzyl alcohol to benzaldehyde is an equilibrium process described by the ...

A:

Q: e AG for the reaction

A:

Q: 4. Rhodium has an atomic radius of 0.1345 nm and density of 12.41 g/cm³. Determine whether it has an...

A:

Q: 2. Which of the following structural formulas represent identical compounds and which represent cons...

A: for the given structures, we need to identify the structures that are identical and the structures t...

Q: MeO2C, NaOMe MeO,C CO,Me HTOME OMe NaH Meo, OMe OMe OMe NH2 NH,OAc NaCl, DMF H+ -OMe NaBH;CN H2O, A ...

A:

Q: 7.40 a. Suggest an explanation for the fact that 1-methylcyclopropene is some 42 kJ/mol (10 kcal/mol...

A:

Q: Consider the following unbalanced chemical equation. CSH12() + O2(g) → CO2(g) + H20(1) If 46.1 grams...

A:

Q: [References] This question has multiple parts. Work all the parts to get the most points. a Calculat...

A: Answer: -390 KJ

Q: When N2(g) reacts with O2(g) according to the following reaction, 82.1 kJ of energy are absorbed for...

A: Nitrogen reacts with oxygen to form dinitrogen oxide. The equation for the balanced chemical reactio...

Q: What mass of Cu(NO 3) 2 can be prepared from the reaction of 1.75 grams of copper with 5.00 grams of...

A: Given Data : 

Q: A compound decomposes by a first-order process. If 13% of the compound decomposes in 60 minutes, the...

A: Given values- Time = 60 minutes Decomposition = 13%

Q: What is the pH of a buffer solution that is 0.350 M ethylamine and 0.200 M ethylammonium chloride, a...

A: As you have mentioned to answer question 4 only so i answered only question 4.Thank you. 

Q: Density of Mole fraction of Molarity Molality % by Mass ppm solution solute

A:

Q: MULTIPLE CHOICE: Write the letter of the correct answer. Write E if the answer is not found within t...

A: let us discuss step by step solution.

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.