What is the spin quantum number, ms, for Uqn-140’s last placed electron?

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A: the purpose of calibrating the "spirit bubble" or "spirit level" is.,

Q: What is the pH of a 0.25 M solution of NH3? Kb = 1.8x105 O 2.67 O 11.33 O 9.07 O 4.93

A: Given valuues from  the question, Salt concentration = c= 0.25 M Kb =1.8×10--5 then,  

Q: In 100 ml of solution there are Ca2+ ions 0.25 M and Ba2+ 0.05 M. Calculate the mass of Na2SO4 that ...

A: Ksp of BaSO4 = 1.1 x 10-10  Ksp of CaSO4 = 4.9 x 10-5 [Ca2+] = 0.25 M [Ba2+] = 0.05 M

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Q: Classify the following compounds as chiral, achiral (but not meso), or meso. H HO. 1st structure: ac...

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Q: What name is used to indicate when the atoms or ions have all paired electrones: O a. ferromagnetic....

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Q: The molar solubility of silver chromate, Ag2CrO4, in water at a certain temperature is 7.1 x 10-5 M....

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Q: The decomposition of 3.87 g NaHCO3 yields 1.90 g Na2CO3. What is the percent yield of this reaction?...

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Q: Calculate the effective nuclear charge, Zeff, of Uqn-140.

A: To Calculate effective nuclear charge Zeff, of Uqn-140.

Q: What volume in L of a 0.724 M Nal solution contains 0.405 mol of Nal ?

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Q: The drawing below shows a mixture of molecules: key carbon O hydrogen nitrogen O sulfur oxygen chlor...

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Q: 8.45 As we've seen, alkynes undergo many of the same addition reactions that alkenes do. What produc...

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Q: 2HX(g) H2(g) + X2(g) Estimate the energy change (in kJ) for the reaction with the following X. F i k...

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Q: What functional group can you get from its IR spectrum? Support your answer by identifying prominent...

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Q: A local FM radio station broadcasts at a frequency of 96.7 MHz. Calculate the wavelength at which i...

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Q: Experiment name: Heat o solution (potassium nitrate with water and Tris with hydrochloric acid) in 6...

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Q: #13  Mass percent of asprin in tablet

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Q: Question 12 An electroplating solution contains vanadium (50.9415 g/mol), which is a metallic elemen...

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Q: Find a crystal structure for any metal complexes, define the oxidation state of metal, define the li...

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Q: The following thermochemical equation is for the reaction of Fe3O4(s) with hydrogen(g) to form iron(...

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Q: 8.) Based on the reactions: :1.) 211,S + 30 2SOe + 2H,0) AH, =-1035.94 kJ 2SO + Oe AH, = +197.78 k.J...

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Q: A mixture of HI, H2, and 1; in a closed container at 448 C has these initial partial pressures: H: (...

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Q: 1. How much heat is released when 165 g of liquid benzene, C6H6 (1), cools from 78.0°C to 12.0°C? (S...

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Q: what do we call a substance that is used to reveal whether a chemical is an acid or a base?

A: Substance that is used to reveal whether a chemical is an acid or a base

Q: For the reaction at equilibrium: CO(g) + H2O(g), CO2(g) + H2(g), increasing the pressure of the cont...

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Q: A sample of a crude grade of sodium hydroxide is sent to a laboratory to be tested for sodium hydrox...

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