In 30.0 minutes, a first order reaction is 25% complete. Calculate how long it will take for the reaction to be 95.0% complete.

Q: What is the predicted product of the reaction shown? NH3 O,N- O2N- -NH2 II O2N- CI O2N NH2 IV O2N- I...

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Q: 1/5 A chemist carefully measures the amount of heat needed to raise the temperature of a 1.72 kg sam...

A: Given : mass = 1.72 kg

Q: The starting compound was treated with different nucleophiles shown in the table. The reaction was c...

A: A question based on introduction to organic chemistry that is to be accomplished.

Q: Identify the expected major product of the following reaction. Br2 ? hy Br Br Br Br. Br Br +En +En +...

A: The reaction given is,  

Q: How many grams of NBR3 can be made from 2.22 x 10-2 moles of Br, ? N2 + 3 Br2 2 NB13 + 44.0 kJ The m...

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Q: a buffer is created with 0.450 CH3COOH and 0.380M CH3COO- calculate the pH CHANGE if 0.042 mol NaOH ...

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Q: A hydroxyl group is characterized by: А. С-0 В. - ОН C. C-O-C D. C-N

A: Functional group charactarized by group attached .  Functional group means C=O is carbonyl functiona...

Q: Which of the following statements is true for a buffer prepared from 2g dihydrogen phosphase and 1.3...

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Q: The dissociation of molecular iodine into iodine atoms is represented as At 1000.0 K, the equilibriu...

A: Given: reaction at equilibrium

Q: Calculate the wavelength in meters of electromagnetic radiation that has a frequency of 660.0 kHz. (...

A: Given,  Frequency =  660.0 kHz Velocity of light (C) = 3.00×10^8 m/s Wavelength = ? m

Q: Which viewing mode(s) (ball & stick, ball & bond type, tube or wireframe) gives the most information...

A: Ball and stick type model gives the most information about a molecules structure . 

Q: Which of the following anions is resonance delocalized? II II III only O Il and III O l and III T on...

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Q: Question 3 AAlkyl halide chemistry. Consider molecules A and B, as shown below: Br "Br А В i) Circle...

A: Enantiomers : two isomers having mirror image relationship.  Secondary alkyl bromide in presence of ...

Q: Given the complex, [Rh(en)2(NO2)2]NO2 1) Name it. 2) What is the oxidation state of the metal? 3) Wh...

A: We have find out complex name, oxidation state of metal and coordination number of central metal ato...

Q: suppose 431. mIL of isopropanol and 1.42 L of water are mixed, and the final solution has a volume o...

A: The percentage volume is found by the formula  %v/v = Volume of a the substance x 100 / Total volume...

Q: The Kw for water at 0 °C is 0.12 × 10-14 M². Calculate the pH of a neutral aqueous solution at 0 °C....

A: In this question, we have to calculate the pH of a Neutral solution at 0°C when Kw for water at 0°C ...

Q: An aqueous solution contains 0.18 M ammonium chloride. One liter of this solution could be converted...

A: Buffer solution: buffer solution  is an aqueous solution consisting of a mixture of a weak acid and ...

Q: Calculate and enter the freezing point depression of a solution of 78.4 g ethylene glycol (C2H6O2) i...

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

Q: Form 12 new compounds by chemical diversification method over the A, X, Y, Z and R positions in the ...

A: A question based on introduction to organic chemistry that is to be accomplished.

Q: Draw the complete reaction, including the mechanism of the Acrolein Test. In what specific condition...

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Q: What is Ka at 25°C for the following equilibrium given Kb (CH3NH2) = 4.4 × 10–4 at 25°C.?

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Q: How many grams of N2 are needed to make 444 g of NBr3 ?  N2   +   3 Br2   →   2 NBr3   +   44.0 kJ ...

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Q: Considerr the following endothermic reaction. A(aq) + B(aq) = C(aq) + D(aq) K = 1X100 A solution is ...

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Q: QUESTION 7 If the temperature of a gas is increased and at the same time the volume of the gas is de...

A: Option C is correct answer. Must stay the same.    

Q: Of the four names listed below, four contain deliberate errors. Which is the only name is correct? A...

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Q: NBS Product A + Product B

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Q: Determine the rate law of the hydrogen-chlorine reaction. Use the reactions in the picture attache

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

Q: A sample of air, at 0.9710 atm and 84.3 °C, is enclosed in a rigid container. Use Gay-Lussac's Law t...

A: P1 = 0.9710 atm  T1 = 84.3 °C T2 = 20.5 °C We need to find P2 

Q: What is the specific heat of a 74.01g piece of an unkown metal that exhibits a 45.2 Celcius temperat...

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Q: Draw the structural formula for each of the following amines: a. diisopropylamine b. p-ethylaniline ...

A: Given,  a) diisopropylamine b) p- ethylaniline C) 2-methylcyclopentanamine d) N-methyl-3-ethylanilin...

Q: The following product shown in the box is formed by an intramolecular Diels-Alder reaction. Identify...

A: According to the our policy we should solve one question (if any subparts present then first three s...

Q: Draw all of the expected products from the reaction shown. Select Draw Rings More Erase H (2 equiv)

A: Reaction of anhydride with amine produces amide.

Q: In this experiment, you are asked to combine 5.0 mL of 0.10 M Fe(NO3)3 with 1.0 mL of 0.0020 M KSCN ...

A: In this mixture of solutions , no precipitate would form as per solubility rules, so all ions would ...

Q: Why is the percent recovery of the essential oil less than 100%? State at least two reasons that are...

A: To explain: The percent recovery of the essential oil less than 100%  

Q: Cyclooctatetraene is   a not planar because it disrupts conjugation and avoids anti-aromaticity. b p...

A: Choose the correct option for Cyclooctatetraene ---

Q: A volume of 500.0 mL of 0.130 M NaOH is added to 575 mL of 0.200 M weak acid (K, = 3.20 x 10-5). Wha...

A: Buffer are solution which resist change in PH when acid Or base are added to it  Here We are require...

Q: You are on a new planet and discover a substance, X2O that undergoes autoionization just like water ...

A:

Q: The area of an object is calculated from experimental data to be 24.6623 cm2. The t absolute error i...

A:

Q: molar mass

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Q: он H+ 1) How muny intermediates arc incre? 2) HOw many transition states canbe farmd?

A: Energy of intermediate is less than corresponding transition state...

Q: O at% Ag = 0 wt% Ag Composition Composition Temperature Composition (at% Ag) Temperature = 392 °F %3...

A: We have find out mass fraction.

Q: Calculate the pH of a vinegar solution with an acetic acid HC2H302 concentration of 0.75 M.

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Q: If this reaction N2(g) + 2 O2(g) yields 2 NO2(g) is reversed and multiplied by 3 and the given entha...

A: Given :-  N2(g) + 2O2(g) → 2NO2(g)  ∆H = 68 kJ  To calculate :-  Final enthalpy change on reversing ...

Q: What would be the net ionic equation?

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Q: Identify materials that followed these properties at room temperature. • highest fracture toughness:...

A: Covalent bond is formed by sharing of electrons.

Q: Howdoyou drouw the smucture Of tme +) intermediate that would occur intre mat step fer the folloing?

A:

Q: The heat of vaporization of CsHs at 1 atm is 94.4 cal/g. 100 g of CeHs reacted at 80.2°C. Calculate ...

A: This question is related to finding out the thermodynamic parameters. Heat of vaporization is the he...

Q: HO, H+ How do you araw the deailcd mechanism with arou formalisms?

A:

Q: Effect of the ratio of the conjugate base to the weak acid. CASE 1. From the Henderson-Hasselbach e...

A:                            H2PO4- + H2O ⇔ HPO4-2 + H3O+ pH = pKa + log [Conjugate Base][Acid] pH = p...

Q: Description (1) On a piece of paper, please draw the schematic of the Electron-Transfer-Chain (ETC) ...

A: 1) diagram attached in description .  2) 2 electron