Write the electron configuration for the following elements and ions using spdf notation (without noble gas abbreviations): Cr Si Fe2+ 5. Write the electron configuration for the following elements and ions using noble gas spdf notation: Sn2+ Br p3-

Q: Above what Fe²+ concentration will Fe(OH), precipitate from a buffer solution that has a pH of 9.61?…

A: Given: pH of the solution = 9.61

Q: Determine ΔH in kJ/mol for the following reaction: 2NO(g) + O2(g) --> 2NO2(g) The standard…

A: Given that:  2NO(g) + O2(g) <......> 2NO2(g)  dH°NO = 90.4 KJ/mol  dH°NO2 = 33.9 KJ/mol

Q: C: Coordination Number Cu2+ Mass Cu(NO,)2 -3 H20 2.3366 grams Volume D.I. Water 57.0 mL Trial…

A: Given:

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Q: 13.6 g of solid ammonium nitrate (NH4NO3, molar mass 80.052 g/mol) is dissolved in 120 mL of water.…

A: Heat of solution is Calculated using formula:   ∆Hsolution  = - q / n  Where , q = heat of solution…

Q: estion 1 Identify the FALSE statement regarding hydrogenations. O Hydrogenations are substitution…

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

Q: A 17.5 mL sample of an acetic acid (CH3CO2H) solution required 29.6 mL of 0.250 M NaOH for…

A: Given, volume of NaOH = 29.6 mL = 29.6 mL × ( 1 L / 1000 mL) = 0.0296 L concentration of NaOH =…

Q: E. Determining the pH of Water Containing Atmospheric Gases pH of water containing CO2 pH of water…

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Q: The addition of 5.00 g of a compound to 250 g of naphthalene lowered the freezing point of the…

A: Freezing point is defined as temperature at which liquid is converted into solid .

Q: Qualitative Analysis Scheme NOTES:MIXED KNOWN * Comprehensive testing of all ims lconsectutive…

A:

Q: The acid H2A reacts with the base M(OH)3 in the following ratio: 3H2A + 2M(OH)3 → products.  What…

A: Given data,Volume of H2A=0.852LMolarity of M(OH)3=0.500MVolume of M(OH)3=0.197L

Q: 2z (g) -----> A (g) + P(g) Kc = 2.16•10^-3 At 60°C if 0.270 mol/L of Z, A and P were all initially…

A:

Q: Which of the following aqueous solutions are good buffer systems? . 0.12 M potassium  acetate + 0.20…

A: To identify: The best buffer solution among the given ones.

Q: n a lab, you titrate 25.0 mL of 0.100 M acetic acid (CH3COOH, a weak acid, pKa 4.756, Ka 1.75 x…

A: The equilibrium constant for the dissociation of a weak acid is expressed as Ka. The given weak acid…

Q: is the enthalpy change of the third reaction in terms of the enthalpy changes of the first two…

A: Given -> 2H2 + O2 ---> 2H2O.     ∆H1 4NH3  + 3O2 ---> 6H2O + 2N2.      ∆H2 4NH3 ---> 6H2…

Q: What measurements or values will be needed to determine the molar mass of the unknown acid? V mass…

A: Answer: This question is based on the titration of acid and base where acid is the unknown and base…

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

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A: The given redox reaction is as follows: MnO2 + CrO42-  →  Cr3+  + MnO4- A redox reaction is balanced…

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Q: 6) Draw all possible starting haloalkanes that would form this product when undergoing unimolecular…

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Q: Calculate AHfus of ethanol having a normal freezing point at - 177.3 °C and molal freezing- point…

A: Given: Freezing point = -177.3oC Molal freezing point constant = 1.99 K m-1 Molar mass of ethanol =…

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A: Number of signals: How many sets of protons in different electronic environment there are in the…

Q: What is the standard cell potential of a cell created using a cadmium electrode in 0.30 M…

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Q: Which of the following will give a positive Jones test? (i.e. Which will undergo an oxidation…

A: Jones test is a test for such functional group which can oxidized by Jones reagent.

Q: Where possible, classify these systems as reactant-favored or product-favored at 298 K. If the…

A: Given reactions: A(s) + 2B(g) ⇌ C(g), ∆H∘ = +271 kJ A(g) + B(g) ⇌ 3C(g), ∆H∘ = +388 kJ A(g) +2B(g) ⇌…

Q: OH the

A: Given reaction is :  Complete the reaction and give the major product = ?

Q: A solution contains 0.0430 M Ca* and 0.0950 M Ag*. If solid N PO, is added to this mixture, which of…

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Q: I. Lewis Acid catalyst Electrophilic addition of Cl2 or Br2 to an aromatic ring requires the…

A: Only the first question and its first three subparts can be answered as per the rules.

Q: In acidic solution, sodium oxalate, Na,C,0,, is oxidized to CO, by MnO, . In the process, MnO, is…

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Q: A student made measurements on some electrochemical cells and calculated three quantities: • The…

A: The data given is,

Q: 13.6 g of solid ammonium nitrate (NH4NO3, molar mass 80.052 g/mol) is dissolved in 120 mL of water.…

A:

Q: a) In each of the following, predict the directing effects. Indicate position(s) on the ring with…

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Q: If a weak acid-base solution is 100% in its conjugate base form, can the Henderson-Hasselbalch…

A: The correct answer about Henderson-Hasselbalch equation given below

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A: The relation between delta G and K is given as -  ΔG = -R T ln K

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A: ->Hg(OAc)2,H2O/NaBH4 is used for oxymercuration demercuration reaction and form alcohol from…

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A: Given: Mass of AgCl to be dissolved = 529 mg = 0.529 g. Volume of solution = 100.0 mL = 0.100 L…

Q: An acidic solution containing 0.020 M La³ + is treated with NaOH until La(OH), precipitates. At…

A: Given: Concentration of La3+ = 0.020 M

Q: What volume would 50.0 g of propane, C3HS, occupy at 1.40 x 102°C under a pressure of 1.82 x 10…

A: Given, Mass of propane = 50.0 g Temperature (T) = 1.40 × 102°C = 140°C = (140 + 273.15) K = 413.15 K…

Q: SPECTRUM B. Identify the compound (here) corresponding proton (with labels selected among H2, H3,…

A: The 1H NMR spectrum of the given organic compound has five peaks indicating five different proton…

Q: The density of C0 gas at 1.00 atm and 323 K is 1.06 g/L. What is the density of NO gas at the same…

A: Solution -

Q: What is a monoprotic acid ? What is the stoichiometric ratio of its reaction with NaOH solution?

A: Acid is a substance which is related by the transfer of hydrogen ion.

Q: What is the value of K for this aqueous reaction at 298 K? A +B C+ D AG° 19.76 kJ/mol K =

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Q: Given the following buffer systems, the acetate buffer system would be the best choice to create a…

A: Answer: A buffer solution is the type of solution that resist the change in its pH on adding small…

Q: mass of water

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Q: Shown below is a carbocation intermediate in an electrophilic addition reaction of HCI with two…

A: HCl is added across carbon carbon double bond.

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Q: Calculate the normal freezing point of a 0.6837 M aqueous solution of C12H22O11 that has a density…

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Q: Which term is not correctly matched? botue (a) endothermic - energy is absorbed (b) exothermic –…

A: