If the half-life of a radioactive substance is 4 days how much material will remain after 16 days if the initial mass is 100 g? 6.25 g O 3.125 g O 12.5 g O 25 g

Q: LDA

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Q: 5. What is the predicted product in the following reaction? 1. Li(CH3)2Cu 2. Н2о OH H3C H H3C. CH3 C...

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Q: 1. A buffer is formed by mixing 65.0 mL of 0.82 M acetic acid (CH3CO2H) with 80.0 mL of 0.64 M sodiu...

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Q: HIT-NO=15641 SCORE= (P-METHYLPHENOXY ) ACETIC ACIO SDBS-NO=31558 IR-NIDA-47630 : NUJOL MULL LOD SD 4...

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Q: 2. Br HCI, H,O 1. Cl, NaOH, H,0 2. H. H,0 1. P. Br 2. H,0 он 3. CH,NH, 1. LDA EIONA (2 equiv.) 1-bro...

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Q: Provide one example for SN1 reaction of alkyl halide

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Q: H,O* + NH, - NH, + H,O

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Q: reaction Ag2O → 2Ag(s) + 12O2(g), ΔH = 30.56 KJ mol− and ΔS = 66 J K−1 mol at 1 atmosphere pressure....

A: □H = 30.56 kJ/mol □S = 66 J/K-mol □G = □H - T □S  

Q: N° `Ph cat. H* А +В Ph -H,0 HO. CI

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Q: cch the hyd of the helic

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Q: Consider the following reaction 8A(g) + 5B(g) → 8C(g) + 6D(g) If [C] is increasing at the rate of 4....

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Q: 10.70 A substance composed of which of the following molecules will have the stronger intermolecular...

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Q: How many L of 4.0 M solution can be made with 132g of NaCI?

A: Given,  The mass of NaCl = 132 g.  The molarity of NaCl solution = 4.0 M. 

Q: Phentermine was approved for sale in the United States in 2012 by the FDA. It is a psychostimulant d...

A: Intermediate 1 is known as diazonium salt...  

Q: Provide a structure for the compound with the formula C, H,, NO using the given information. 13 IR: ...

A: The molecular formula of the organic compound given is C9H13NO. The degree of unsaturation = C+1−(H/...

Q: For the reaction SbCl (g) SbCl (g) + Cl (g), 5 3 2  G° (SbCl ) = -334.34 kJ/mol f 5  G° (SbCl ) = ...

A: We have find out equilibrium constant.

Q: Provide a structure for the compound C,HN, using the given information. IR: 3281 cm-1 'H NMR: 8 1.1 ...

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Q: The equilibrium constant, K, for the following reaction is 1.20×10-2 at 500 K. PCI5(g) PCI3(g) + Cl2...

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Q: The pH of a 0.10 MM solution of formic acid (HCO2H) is 2.38. Calculate Ka for formic acid. Calculat...

A: We have 0.10 M of formic acid whose pH is given we have to predict the Ka and Pka.  

Q: Be sure to answer all parts. The equilibrium constant K, for the reaction below is 0.00320 at a cert...

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Q: 25) Consider the following set of reactions. Assume that A, B, C and D are atoms. (1) A + A → B (2) ...

A: A question based on kinetics of reactions in solution that is to be accomplished.

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Q: The normal boiling point of cyclohexane is 80.74 °C. At 20.00 °C, the vapour pressure of cyclohexane...

A: Given,  The normal boiling point of cyclohexane is 80.74 °C.At 20.00 °C, the vapour pressure of cycl...

Q: a. Cr(OH)3 + Br2 → CrO4²" + + Br in basic solution b. O2 + Sb→ H,O, + SbO,¯ in basic solution c. HCO...

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Q: 3) Draw the oxocarbenium ion that is formed as an intermediate in the following reaction: но он H* н...

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Q: What is the frequency in hertz of blue light having a wavelength of 457 nm? x 10 Hz eTextbook and Me...

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Q: Calculate the molarity of a solution prepared by dissolving 16.75 grams of ammonium nitrate in water...

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Q: Provide one example for E2 reaction of alkyl halide

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Q: What the time l submevs ion in day ot Brass alloy (25%2n, 45%. cu) , avea was 10 cm2, that 2.5 Kg ノ ...

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Q: If 2.7 kg of Na2CO3 concentration of CO32- ? are dissolved to make 4.6 L of solution, what is the An...

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Q: Three students are preparing alkoxides in the lab by mixing sodium metal with a suitable alcohol. St...

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Q: Tell whether the given reaction will occur via SN1, SN2, E1, or E2

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Q: 2 A , how long will it take to generate 23.0 L of hydrogen gas at a pressure of 27.0 atm and a tempe...

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Q: NH3 NH3 CH3CO2H (CO2H)2 H20 NH2OH (CH3CO)20 CH3CO2H

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Q: A chemist dissolves 203. mg of pure barium hydroxide in enough water to make up 60. mL of solution. ...

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Q: How many vibrational modes are in (a) C¿H2 and (b) a 4,000 atom protein?

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Q: f. 2-ethyl-cyclopentane-1,3- dicarboxylic acid ortho-hydroxybenzoic acid g.

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Q: OCH3 AICI3

A: The reaction given is,  

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Q: Part A A beaker with 1.40x10? mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchto...

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Q: What is the principal quantum number (n), the orbital angular momentum quantum number (l), the magne...

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