1. Describe the operation of spectrophotometer.

Q: NO2(3) + CO(g) –→ NO(g) + CO2(g) The rate constant at 699 K is measured to be 2.62 Ms1, and at 896 K...

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Q: An aqueous solution contains 0.413 M hydrocyanic acid. How many mL of 0.319 M potassium hydroxide wo...

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Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of ...

A: All atoms of all elements and charges should be balanced in a balanced chemical reaction.

Q: In a face-centered cubic unit cell, which part(s) of the 3D unit cell do the atoms occupy? corner ed...

A: Unit cell is thr smallest portion of lattice, which repeats over and over again to form a crystal la...

Q: 2s0,(g)+0,(3) 2s0,(g) ppose a mixture of SO,, O, and SO, has come to equilibrium in a closed reactio...

A: Given : We have to fill the table.

Q: Please answer just the question number 2. (not 1. and 3.).

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Q: 4NH3 (g) + 502 (2) 4NO(R) 6H20 (g) --> Answer each question that follows. O a. Increasing the pressu...

A: Given : We have to pick the correct statement for the given reaction.

Q: Use excel spreadsheet to solve the following results: A sorption study of Cd2+ on a loamy sand gave...

A: A question based on adsorption that is to be accomplished.

Q: behind the paper, eral Problems For each of the following compounds, draw an isomer that has the sam...

A:   Isomerism :  The compounds which are having same molecular formula but differ in their properties ...

Q: 8. Fill in the following table: pH [H;O"] pOH [OH'] ACID or BASE 1.97 9.84 x 10-2 M 4.68 2.64 x 10-5...

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Q: The equilibrium constant for a reaction A +B = Y +Z is 0.1. What amount of A must be mixed with 3 mo...

A: Equilibrium constant represent the ratio of concentration of product and reactants at equilibrium.

Q: 1. SOCI2 2. Et,CuLi 3. (a) LİAIH4 (b) H2O OH

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Q: Consider the following reaction: C3H18(1) + 25/2 O»(g) → 8 CO2(g) + 9 H20(1) If d[CO2l/dt = 0.5OOM/s...

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Q: A block of lead has dimensions of 4.5 cm by 5.2 cm by 6 cm. The block weighs 1587 g. From this infor...

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Q: At a certain temperature the rate of this reaction is second order in SO3 with a rate constant of 4....

A: For the second-order reaction, the sum of the exponents in the rate law is two. The rate of second-o...

Q: an attempt to measure the effects of acid rain, researchers measured the pH (7 is neutral and values...

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Q: step(s). The SN2 reaction of chloroethane with NaC=CH has 3. O 1

A: Bimolecular nucleophilic substitution reaction (SN2): In this reaction the addition of the nucleophi...

Q: Question 3 Given the dissociation constants for each deprotonation, what is the dissociation constan...

A: In order to get the overall equation, the two chemical equations are added together. On addition of ...

Q: A plot of Gibbs Energy against the extent of reaction has been constructed. Which point in the graph...

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Q: At equilibrium, what is the value of ΔGrxn? < 1 < 0 = 1 = 0

A:                                    Answer At equilibrium, value of ∆Grxn We know that For spontaneou...

Q: For solid solutions, check all that applies: V A. For the case of an interstitial solid solution of ...

A: The solution is as follows:  

Q: Practice Question: Outline all the necessary reactions with the minimum number of steps required to...

A: The answer is as follows:  

Q: 3. Lead is said to be a "heavy" substance because it has a large C. Pressure D. Volume A. Density B....

A: Usually heavy means it has high weight.   

Q: When pentanal and ethanol are reacted in an acetal formation reaction in the presence of acid cataly...

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Q: Grignard -protectin OH HO HO. Br- HO Stepz ur alk но SOCI, HO HO, Eter

A: 1. TMS Cl is protecting reagent of alcohol . in presence of fluoride ion or H+ , this protected alco...

Q: Consider the following reaction: A+B+C+3D The reaction mixture is initially at equilibrium with [A] ...

A: Given, Initially at equilibrium concentration of  [A] = [B] = [C] = 0.445 M  And [D] = 0.760 M  And ...

Q: What is the cell potential for the following reaction at 25 °C?  Ni(s) + Cu2+(0.010 M) → Ni2+(0.001...

A: The cell reaction given is, =&gt; Ni(s) + 2 Cu2+(0.010 M) → Ni2+(0.0010 M) + 2 Cu+(1.0 M) Given: Tem...

Q: opose a 500. mL flask is filled with 0.30 mol of SO, and 1.2 mol of SOą. This reaction becomes possi...

A: Volume of flask = 500.0mL or 0.500 L Number of moles of SO2 = 0.30 mol  Number of Moles of SO3 = 1.2...

Q: The reaction between selenous acid and the iodide ion in acid solution is H2SEO3(aq) + 61 (aq) + 4H*...

A: Answer: To find out the effect of change in concentration of iodide ion on rate of reaction, we need...

Q: Label each peak with multiplicity and number of hydrogens -How do you Identify the Ha, Hb, Hc, and ...

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Q: explain the results of this experiment table 2    Test Tube Number Cobalt Chloride Concentration...

A: The concentration v/s absorbance data given is,   Test Tube Number Cobalt Chloride Concentrati...

Q: an aqueous solution at about 25 °C. Complete the table. That is, fill in any missing entries in the ...

A: the pH of the solution depends on the concentration of H+ ions. 

Q: About 50% of ucunary.calaulikidncystones).consist of calcium phouphale, Ca(PD.) The nomal mid-cange ...

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Q: In the procedure you followed for the above experiment, the pipet that was used to measure the unkno...

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Q: The reaction A-B is first order, and has a half-life of 375.1 s. If the concentration of A after 629...

A: t1/2 = 375.1 s t = 629.0 s [A] = 0.167 M [Ao] = (to find)

Q: 1. The action of catalyst regarding the rate of reaction involves: A. Arranges the orientation of th...

A: The answers are below

Q: Gaseous methane (CH,) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) an...

A: Given : Mass of CH4 = 0.96 g Mass of O2 = 7.53 g  To calculate :-  Mass of H2O (in grams)

Q: 5. Answer the following questions a-d: Type all questions and answers. a. i) Look at your results fo...

A: a) i) The best buffer is 2. Since in total it is the one with the greatest amount of drops of acid o...

Q: Which of the following changes will affect the rate constant of a reaction 1. Increasing or decreasi...

A: The rate constant is affected by  1) increasing or decreasing the reaction temperature

Q: (a) ŢLi + ? → 2He → 2;He (b) 14 C → 14 N+? (c) He ? + ¿n Al + 27 13 Не (d) 250 Cm → ?+g Sr + 4,n 38

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Q: A reactant decomposes with a half-life of 149 s when its initial concentration is 0.312 M. When the ...

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Q: I. Directions: Draw the lewis structures of the neutral atom and the ion of each element. Determine ...

A: Lithium (Li) atomic number = 3 Number of valance electrons = 1  

Q: Consider the following aqueous solutions. (i) 0.35 m C2H4(OH)2 (ethylene glycol, nonvolatile solute ...

A: Total ions for a non-electrolyte is one in an aqueous solution. 

Q: A sorption study of Cd2+ on a loamy sand yielded the following results measured when the system was ...

A: We are given A sorption study of Cd2+ ion and We have to determine the Kd for this system

Q: The ΔG°rxn for the reaction: N2(g) + O2(g)  2 NO(g) is +173 kJ/mol at 25 °C.  What is the equilibri...

A: Complete solution is given below in next step   

Q: How many degrees of unsaturation are there in the following molecule ?

A: Given : We have to tell the number of degree of unsaturation in the given organic compound.

Q: Which of the following statement/s is/are TRUE?  The Arrhenius Theory cannot be applied to account ...

A: 1) The Arrhenius Theory cannot be applied to account for the behavior of the molar conductivity of s...

Q: Create a model of the atoms of a substance moving through the solid, liquid, and gas states. Be sure...

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Q: Consider the reaction: N204(g) 2 NO2(g). What is AS° at 25 °C? AHf, KJ mol-1 AGf, kJ mol-1 NO2 33.85...

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Q: True/False.  HBrO3 is a strong acid. Why? c. Rank these acids from strongest to weakest: HF, H2O, H...

A: Those compounds which lose a proton in presence of any base or those compounds which decrease the pH...