ОН H+

Q: What is the pH of a 0.430 M solution of Ca(NO₂), (Ka of HNO₂ is 4.5 x 10*)?

A: pH of a solution is defined as the negative logarithm of hydronium ion concentration.  pH of a…

Q: STARTING AMOUNT X What is the mass in grams of NaCN in 120.0 mL of a 2.40 x 105 M solution? ADD…

A: Given:Volume = 120.0 mL = 0.120 LConcentration = 2.40 × 10-5 M (mol/L)Molar mass of NaCN = 49.01…

Q: Consider the following reaction 2CH.(R) C₂H₂()+ 3H₂(g) The reaction of CH, is carried out at some…

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Q: Choose the correct set of reagonts, Circle the correct answer Br CH₂ NO₂ A) HNO3 /H₂SO4 →…

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Q: Please don't use pka to analyse, use the structures to analyse

A: A. NH3, NaNH2B.

Q: 12) What is a reasonable structure for a molecule with the formula C6H₂N and the following IR…

A: A question based on IR spectroscopy of organic compounds. An IR spectrum is given for which the…

Q: 4. A 0.584gram sample of a fertilizer was analyzed for its N content by the kjeldahl method, the…

A: analysis of % N and Urea, H2NCONH2

Q: Solute A has a partition coefficient of 4 between diethyl ether and water. If 100 mL of 0.1 M…

A: Multiple extraction process is a way of getting the desired solvent layer from aqueous layer.…

Q: Name PBr5 Lewis Electron Dot structure Molecular geometry Hybridization Polarity

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Q: Determine the  ΔH for the reaction below using Bond Energies.…

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Q: Suggest mechanisms for the following reactions, both of which involve radical intermediates: (b) (c)…

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Q: The Kf and Kb values for water are 1.86 and 0.52°C/m, respectively. A solution boils at 107.5°C. At…

A: First calculate the molality of the solution using the boiling point of the solution. Use that…

Q: Which of the following molecules and ions has (a) a center of inversion, (b) an S4 axis: (i) CO₂,…

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Q: A 1.458 g primary-standard grade Na2CO3 (MW = 105.99 g/mol) was used to standardize an HCl solution.…

A: Sodium carbonate reacts with hydrochloric acid to form sodium chloride, carbon dioxide gas, and…

Q: Predict the product for the following reaction. ||| OH 0 0. + ОН ميد ميد ا OH V H₂SO4 IV

A: The question is based on organic reactions.     we need to identify the product formed and explain…

Q: Consider a 1.2 M solution of Na3PO4. What is the molarity of the Na+ ions?

A: Concentration      = number of moles / Volume

Q: You combine 100. mL of 0.100 M Fe(NO3)2 and 100. mL of 0.00125 M Na₂CO3. What is the concentration…

A: Concentration of Fe(NO3)2 = 0.100 MVolume of Fe(NO3)2 = 100.0 mLConcentration of Na2CO3 = 0.00125…

Q: 73 mL of 0.896 M nitric acid is added to 83.6 mL of 1.403 M magnesium nitrate. What is the…

A: Molarity = moles of solute/volume of solution( in L)

Q: A solution is 0.100 M in both Mn2+ and Cd2+ ions. The pH is slowly increased by adding NaOH. Which…

A: Concentration of Mn2+ in the solution = Concentration of Cd2+ in the solution = 0.1 MpH is increased…

Q: A 30.00 mL of 0.125 M NaOH solution is titrated with a standard 0.250 M HCL solution. Calculate the…

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Q: 2. Predict the products of the reactions below and provide step-by-step mechanisms. (b) Consider pka…

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Q: For question below the separation scheme, please indicate the compound that b fits in the blank of…

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Q: CH2CH3 5. Cl2 hv +

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Q: f 1. NaNH₂: 2. CH₂l followed by 1. NaNH₂: 2. H₂O; 3. H₂/Lindlar's catalyst O 1.BH3/THF: 2. H₂O₂,…

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Q: Benzenediazonium ion plus the following reactants and reagents yields__________. 1) CuCl 2) Mg,…

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Q: What is the molecular geometry around the three carbons and the oxygen in 2-propanol (isopropanol)?

A: The structure of a molecule can be determined by using the VSEPR theory. According to this theory…

Q: When using a Gran plot to determine the equivalence point, we must use the data after the…

A: A Gran plot is a method of estimating the equivalence point of a titration by plotting a linear…

Q: A 1.458 g primary-standard grade Na2CO3 (MW = 105.99 g/mol) was used to standardize an HCl solution.…

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Q: At a certain temperature the rate of this reaction is second order in N2O5 with a rate constant of…

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Q: What is the value of K for this aqueous reaction at 298 K? A+B=C+D AG = 13.67 kJ/mol K =

A: Recall the given aqueous reaction,                                    Standard Gibb's free energy…

Q: NH₂ NH₂ Br Pd (0)

A: The Buchwald-Hartwig reaction involves the coupling of an aryl or vinyl halide (or pseudohalide)…

Q: please explain part d in detail

A: Acid is a molecule that loses its proton (H+) easily.More readily the proton is lost, most acidic…

Q: Bond Energies and Heat of Reaction Use the given bond energy values to estimate AH for the following…

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Q: Dissolution of O₂ (and all other gases) in water is [Select] O2 becomes [Select] Although we haven't…

A: Answer:-This question is answered by using the simple concept of solubility of the gases in liquid.

Q: 12. Draw the Fischer structure: (S)-1,3,4-trihydroxybutan-2-onem pniwollot d HO HO HO azotneqobis…

A: We have to draw the given structures.

Q: _ will exist as a racemic mix.     Chloro ethyl methyl amine     Phenyl amine     Ammonia…

A: A racemic mixture is a type of mixture that contains equal amounts of two enantiomers, which are…

Q: 2Mg(s) + O₂(g) →→→ 2MgO(s) A chemistry student is performing this reaction in a lab, in which…

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Q: Could you please explain in detail for example in figure B (yours)why the hydrogen next to O is not…

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Q: An analytical chemist is titrating 226.9 mil. of a 0.5200M solution of benzoic acid (HC H,CO,) with…

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Q: How many grams are in 5.32 x 10 molecules of CO ?

A: Number of molecules of CO2 = 5.32 x 1022 molecules.

Q: Ca(OH)2(s)+H2S(g)--->CaS(s)+2H2O(l) In the reaction above, calcium hydroxide and hydrogen sulfide…

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Q: This was all one question. Could you complete the bottom portion?

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Q: Arrange the following gases in order of increasing rate of effusion: C₂H6, Ar, HCl, and PH3.

A: Given,The gases:    C2H6 , Ar, HCl and PH3

Q: 11. What is the relationship? Br me- * Et H Br

A: we have to find the relationship between two molecules.

Q: What is the pH of 0.0073 M NaOH?

A: Concentration of NaOH solution = [NaOH] = 0.0073 MpH of the solution = ?Note: NaOH is a strong base…

Q: How many moles of tungsten atoms are in 4.8 x 10^24 atoms in tungsten. a. 8.0x10^0 moles b.…

A: Given: No. of tungsten atoms =  4.8 x 1024 atomsRequired: no. of Moles of tungsten= ?

Q: 3. Assume that in extraction from water into toulene, analyte A has distribution ratio of 10. A 20…

A: The distribution ratio (D) is defined as the ratio of the concentration of analyte A in the organic…

Q: can you explain what is happening in the graph attached

A: Certain compounds absorb UV or Visible light due to presence of aromatic ring in conjugation to a…

Q: 19 g of sodium sulfate contains how many oxygen atoms?

A: Molar mass = mass of 1 mole of substance1 mole = 6.022 x 1023 atoms

Q: What is the product of the following reaction? x Br Br eNH₂ (2 equivalents) 11 III

A: Geminal dihalides on reaction with 2 equivalents of amide give alkynes. Geminal dihalides are when…