Which electron(s) in the S atom experience the greatest shielding of the nucleus? 2p 2s 1s 3p 3s

Q: If 136 g of BaCl₂ (FW 208.23 g/mol) is added to a solution containing 95.0 g of Na3PO4 (FW 163.94…

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Q: mixture of 0.856 mol of NO, 0.656 mol of H₂, and 1.16 mol of H₂O is placed in a 1.0-L vessel at 300…

A: First we have to convert the moles to molar concentration. And we will construct the ICE table and…

Q: Determine the volume (in liters) of a 29.8-g sample of CH4 gas at 597 torr and 554°C.

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Q: How do I apply this in the answer chart that was given? in other words how do I write out the entire…

A: Here, we have to find the mass of FeCl3 in 155 mL of 0.762 M FeCl3 solution.

Q: Which atomic spectroscopy is a more preferred method in the analysis of trace levels (such as ppb…

A: Atomic absorption spectroscopy is preferred

Q: A newly made Styrofoam ball calorimeter was first calibrated by mixing 10.0 mL of 0.40 M…

A: Given: Volume of HCl = 10.0 mL Concentration of HCl = 0.40 M mass of MgO = 0.1008 g MgO (MW = 40.30…

Q: Choose all the following that are incorrect formation reactions. A.N2(g)+202(g)-+2N02(g) B.…

A: In this question, we have to Choose all the following that are incorrect formation reactions.

Q: Give two advantages of using GF-AAS compared to Flame-AAS

A: GF-AAS (Graphite furnace atomic absorption spectroscopy) are more sensitive than flame atomic…

Q: When 3.5 g of CaF2 (an insoluble salt, Ksp = 3.9 X 10-11) is added to water to make 200. mL of…

A: mole  = mass  /  molecular weight molecular weight of CaF2 = 78.07 g/mole concentration = mole  *…

Q: With the aid of a suitable schematic diagram, discuss the underlying working principles of the flame…

A: Flame atomic absorption spectroscopy:  It works on the principle where ground state metals absorb…

Q: What is the total pressure of this system at 179°C? Temperature Pressure of 1,2-propanediol…

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Q: TRUE OR FALSE  During neutralization reaction, the concentration of the buffer system remains the…

A: This is a problem based on ionic equilibrium where we are dealing with buffer system .

Q: Consider a water sample in a closed system with Cr,c03-8x10-4 M and pH=8. a) What is the alkalinity…

A: Given, CT,CO3=8×10-4M and pH= 8

Q: 3 points (I): What molar ratio of benzoate ion to benzoic acid would be required to prepare a buffer…

A: Given, Ka of C6H5COOH=6.5×10-5 pH=5.2

Q: Aluminum nitrate reacts with sodium hydroxide according the the equation below. When 10.99 grams of…

A: Answer is given below

Q: Course Contents»... LA G Liquid hellum at 4.2 K has a density of 0.147 g/mL. Suppose that a 1.00 L…

A: In the given question we have to calculate the pressure inside the bottle, First of all we have to…

Q: 8. Determine the relative acid strength (RAS) for the anions produced from the dissociation of the…

A: we know that greater the electronegativity оf Central atom Of acid greater will be the acidic…

Q: 2. Which of the following solvents (water, ethanol, or benzene) would likely be the best solvent to…

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Q: oblem Set » Unit 4 Q2 (2 parts) A solution of sodium thiosulfate, Na2S2O3, is 0.4203 M. 8.52 mL of…

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Q: A sample of nitrogen gas in a 1.94-L container exerts a pressure of 1.21 atm at 33 ∘C. What is the…

A: Given, Initially, Pressure (P1) = 1.21 atm Temperature (T1) = 33°C = (33 + 273.15)K = 306.15 K…

Q: Usually at the 2- or 3- position, Thiophene undergoes electrophilic aromatic substitution. Draw the…

A: Organic reactions are those in which organic reactant react to form organic products. In the above…

Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

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Q: STARTING AMOUNT 0.1 6.60 If you have 155 mL solution of a 0.762 M FeCl solution, how many grams of…

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Q: Explain why a high-temperature nitrous oxide-acetylene flame is sometimes required in a flame-AAS.

A: High temperature nitrous oxide-acetylene flame is sometimes required in a flame-AAS (Atomic…

Q: Determine the best name for the following molecule: 5-(2-methylprop-1-enyl)hepta-6-ene-3-yne

A: To name a compound we will first identify the longest carbon chain. After that we will identify the…

Q: For the following, use proper sig figs, do not include units, and do not place numbers in scientific…

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Q: If you have 1 mol Xe and 1 mol F2, how many moles of XeF4 can you create in the following chemical…

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Q: alance the chemical equation by adding coefficients as needed. equation: FeCl₂ (aq) + KMnO4 (aq) +…

A: The balanced chemical is the equation in which the number of atoms of each element on either side of…

Q: How many peaks in the C-NMR spectrum?

A: Carbon-13 (C-13) nuclear magnetic resonance (most commonly known as carbon-13 NMR spectroscopy or…

Q: Determine the atomic number of the stable configuration of nuclei with mass number A=167 Answer:

A: The  Mass Number (A) --> 167 Nucleon Number (A) --> 167 Proton Number (Z) --> 68 Neutron…

Q: Which component of the Flame-AAS is responsible for source modulation? What is the importance of…

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Q: EXTRA #1 CHALLENGE! Draw 4 Bohr Models If you chose Li for #1, then draw N or O. If you chose Na,…

A: As we go from left to right in the periodic table, the atomic radius of the atom decreases due to…

Q: Home Work: 1. At a temperature of 300K, 30 litres of gas A kept under pressure of 1 atm and 15…

A: Given,  Temperature , T = 300 K

Q: 1. If the reaction below is initially at equilibrium, and then each of the following changes are…

A: Given reaction : H2 (g)  + Cl2 (g) →2HCl (g)

Q: Estimate the chemical shift expected "iii" in the H-NMR spectrum of the molecule shown below.

A: NMR spectroscopy is branch of chemistry that deals with shielding and shielding effect of electron…

Q: For a reaction aA+bB cC + dD the equilibrium constant K is defined as the ratio of products to…

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Q: 13.14 A compound with molecular formula C5H₁0O₂ has the following NMR spectrum. Determine the number…

A: The ratio of integral values of 1Hnmr peaks indicates the ratio of hydrogens. Divide each integral…

Q: Given the frequency or wavelength, calculate the energy 6.63x10^-7 m 239 nm 2.34x10^14 Hz

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Q: CARBON, Atomic Number = 6 Energy 4s 4p 3p 2p 3d electron configuration: SODIUM, Atomiumber = 11…

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Q: An aliquot of 20 ml of skim milk was placed in an Erlenmeyer flask. To the flask was added 3 to 4…

A: A 20.0 mL sample of a skim milk is titrated against a standardized 0.101 M NaOH solution using…

Q: If a substance is radioactive, this means that the nucleus is unstable and will therefore decay by…

A: Given data :

Q: Consider the balanced thermochemical equation given below: 4 NH3(g)  + 5 O2(g)  →  4 NO(g) + 6…

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Q: At the equivalence point of a titration reaction: a analyte present in excess b titrant present in…

A: In the given question we have to identify the correct option regarding the titration reaction.

Q: Consider the reaction Na2CO3+2HCl=2NaCl+CO2+H2O If 10.6 g of sodium carbonate reacts fully with an…

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Q: Methane CH is a simple organic molecule that is used as a fuel—it is the major component of natural…

A: Dear student, we are authorised to solve only one question at a time. Please post rest of the…

Q: a. In a neutral solution, what is the concentration of H3O+? 1.0 x 10-7 M b. In a neutral solution,…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: 5. A 0.709 g sample of H2C2042H2O is dissolved in water and titrated to a phenolphthalein endpoint…

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Q: Select the preferred product for the following reaction. Assume proper work up. SCH3 A Br CN B NaSCH…

A: This is an example of SN2 reaction. This reaction takes place in one single step via transition…

Q: A chemical substance has a specific heat of 0.636 J/g⋅ºC. If 17.4 grams of this substance is heated…

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Q: and Question: How does temperature affect the rate of diff 1. Observe: Set the temperature (Temp.)…

A: To explain how temperature affect the rate of diffusion