O Use the following radial probability function to justify i. why the B than has a first lower ionization energy than Be. ii. why 2s orbital is more screened in B.

Q: a) What is the wavelength in nanometres of light emitted by the helium ion (He2+) when it captures…

A: Answer: This question is based on Bohr's modal where we have to calculate the value of energy of…

Q: H. c=c=c_ Br Br c=c=c= H Br and B CI and ČI ČI and

A: Enantiomer is one of the stereoisomer that at non superposable mirror image... 8 carbon containing…

Q: 2. At 630°K the heat of sublimation of ZrBrą is 25,800 cal/mole, while the vapour pressure is 1 atm.…

A: Given,  Heat of sublimation, ∆H = 25800 cal/mol  Sublimation pressure at temperature, T1 = 630 K ;…

Q: arrows are used to illustrate the flow of electrons. Follow the arrows to predict the product of…

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Q: wing mixtures has the highest buffering cap 2-10.90 M PO43- 2-10.10 M PO43- e the same buffer…

A: Buffer solution is the mixture of weak Acid/base with its conjugate base/acid. Buffer which have…

Q: Write the formula of an alkene containing 19 carbon atoms.

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Q: Predict the sign of AS°rxn (positive or negative) for the following reactions: - v isopropanol…

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Q: 3) Calculate the pH after titration of 30.00 mL of 0.10 M HOCl solution (ka=2.9x10^-8) with 25.00 mL…

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Q: For the first blank select an answer with a (1) in front. For the second blank, select an answer…

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Q: What happens to the particles of a precipitate if particle growth is the dominant process by which…

A: Particle growth in precipitation process occurs via three stages: nucleation, coagulation and…

Q: For each of the following pairs of compounds, indicate the compound more reactive to an SN1…

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Q: what volume of

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Q: If the solubility of a drug is 3.8 g/L and in chloroform 224.9 g/L calculate its partition…

A: Solubility of drug in water = 3.8 g/L Solubility of drug in chloroform = 224.9 g/L

Q: What happens to the particles of a precipitate if nucleation is the dominant process by which they…

A: Nucleation is the process in which the crystals grow in a solution by forming a regularized pattern…

Q: Assume the heat capacity values in Table 2.3 apply at all temperatures unless otherwise stated. (1)…

A: The answer is given below

Q: Which of the following statements is TRUE? OA. Endothermic processes decrease the entropy of the…

A:

Q: The emulsifying agent, a salt, is prepared from 2 chemicals. A) write the structure of stearic acid…

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Q: Question 21 If 17.6 mL of 0.195 M HCIO4 are added to 7.36 mL of 0.0369 M CSOH, what is the final pH?…

A: Calculate moles of acid and base, then, calculate remaining moles of acid. Add the volume of acid…

Q: Calculate A H for H2(g) + Cl2 (g) 2HCI (g) based on the reactions: AH = -176 kJ AH = -99.22 kJ =…

A: Hess' law states that change in enthalpy of reaction is same whether it takes place in single step…

Q: What mass of calcium chloride, CaCl2, in needed to prepare 2.657L of a 1.55 M solution?

A: Given,  Volume of CaCl2 solution = 2.657L Molarity of CaCl2 solution = 1.55 M Mass of calcium…

Q: ?why is heat an effective means of sterilization إجابتك ?What is the classification of enzymes dila!

A: Sterilization means the destruction of all microorganism including the spores.

Q: 4. Propose an arrow-pushing mechanism for the following reaction: OH HBr Br CH;OH + H,0

A:

Q: For each compound on the left, which compound on the right can be combined with it to generate a…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: A teacher adds a small amount of a substance to an erlenmeyer flask while demonstrating titration.…

A: A teacher adds small amount of a substance to an erlenmeyer flask while demonstrating titration.Lets…

Q: Based on lab results, which metal, Cu, Fe, or Al, would be most affected by acid rain?

A: The answer is given below

Q: Part B Calculate the entropy of each of the following states. (Figure 1) State (b). S = 0 J/K Submit…

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Q: Consider these compounds: A. CUCO3 B. A92CO3 C. MNCO3 D. Ni(OH)2 Complete the following statements…

A: To compare solubility of given salts we would use their Ksp values.  The salts whose Ksp is higher…

Q: Are the following pair enantionmer, diasteriomer, or isomer

A: The molecules with the same molecular formula but different structures are known as isomers. If the…

Q: Determine the Ka and pKa for an aqueous solution containing 0.19M of a weak, monoprotic acid, HA,…

A: pH = -log[H3O+]  log[H3O+]  = -pH  So, [H3O+]  = 10-pH  Ka is the ratio of  product of concentration…

Q: Sketch and label 6-8 H2O molecules interacting in the liquid phase.

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Q: The following results of alkalinity determination for 100 ml sample titrated with 0.02N H,SO4.…

A: A =the amount of H2SO4 consumed on titration using  phenolphthalein indicator. N= normality of H2SO4…

Q: 0.535 o* + 4 e→ 6 H20 1.229 e e H2 + 2 OH" -0.828 -1.180 rons as e". Use the smallest integer…

A: In electrolysis,   Cation moves toward cathode and cation with higher reduction potential get…

Q: Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?

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Q: Calculate the induced dipole moment of SO2 due to a K+ ion that is 5.2 Å away from the center of the…

A: Given as Distance from SO2 = 5.2 A0  Polarizability of SO2=3.72×10-30 m3 The induced dipole moment…

Q: Calculate the temperature at which the wavelength of a neutron is 1.36 Å. 4.0 K

A: The answer is given below

Q: Which among these is the most important piece of data in a gravimetric analysis?   Mass of analyte…

A: Gravimetric analysis :  Gravimetric analysis, a method of quantitative chemical analysis in which…

Q: The solubility product constant for MX2 is 5.96E-3. What is the molar solubility of MX2?

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Q: least expensive form of carbon abatement (putting less CO2 into the atmosphere) is A, nuclear power…

A: Abatement means to reduce or to decrease. As it is asking about least expensive form of carbon…

Q: If the equations for the extreme lines (a and e) using units shown in graph above are: y= 2.6x + 3.0…

A: We have find out Vmax for enzyme.

Q: Predict whether a 0.10-M solution of each of the following salts will be basic, acidic, or neutral.…

A: The acid and basic are the characteristics which will shown the nature of the solution.

Q: Br H2O H2SO4 Br2 A

A: Alcohol with H2SO4 heating is a E1 elimination reaction.... In SN1 reaction we get racemic…

Q: O : Ca O : Ca: Ca2+ + .. Ca2* + 21::| Ca2+ + 2| :1: | Ca Ca2+ + 11

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Q: • Determine the number of grams of H2SO4 that would be contained in 800.0 mL of a 1.5 M H2SO4…

A: Given-> Volume b= 800 ml = 0.800 L (1L =1000 ml) Molarity = 1.5 M

Q: A neutral compound has a partition coefficient of 7 between ether and water. What percentage of the…

A: Partition coefficient (K) = Kether/ Kwater = 7 Let initial amount f substance = W gram After…

Q: What is the empirical formula of a compound of carbon, hydrogen, and Oxygen that contains 51.56% and…

A: Given:: %C = 51.56%  %H = 14.09 % then, empirical formula = ?

Q: Part A Balance the redox reaction occurring in basic solution. MnO4 (aq)+ OH (aq) → O2(g) +…

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Q: How many electrons in a given atom can have each of the following sets of quantum numbers? a) n = 3,…

A: Calculate number of electrons in the given set of quantum number ---

Q: Which of the following is not a conjugate acid-base pair?    CH3COOH and CH3COO-        HPO42- and…

A: Concept:  Conjugate acid and base: According to the Brønsted–Lowry definition of acids and bases, a…

Q: Calculate the equilibrium constant at 250.0 °C.

A: Given data :

Q: 3. The recation of 9.66 g 02 with 9.33 g NO produces 10.1 g NO2. What is the percent yield?

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

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.