Chemistry concepts and calculations

( a )Circle the stronger acid is the following pair: Benzoic acid(HC7H5O2) or Fo

(a)Circle the stronger acid is the following pair: Benzoic acid(HC7H5O2)  or    Formic acid (HCHO2) (b)Circle the stronger base:    C7H5O2    or    CHO2 (c)Predict whether an aque…

( a )What is the conjugate base of the following: HClO2; the conjugate base is _

(a)What is the conjugate base of the following: HClO2; the conjugate base is ________________ NH3; the conjugate base is________________ HCHO2; the conjugatebase is ____________ (…

( atmospheric thermodynamics) ( please write neat thanks) Derive a simple relati

( atmospheric thermodynamics) ( please write neat thanks) Derive a simple relationship that equates height change at z1 and z2 with the average temperature change in the column as…

( d ) 2CH4(g)- C,H6(g) + H2(g) Equilibrium Constants and G 18.97 Calculate the v

( d ) 2CH4(g)- C,H6(g) + H2(g) Equilibrium Constants and G 18.97 Calculate the value of the thermodynamic equilibrium constant for the following reactions at 25 °C. (Refer to the …

( of 85 CIRCLE THE CORRECT ANSWER. 1. (I pt) If the solubility of sodium chlorid

( of 85 CIRCLE THE CORRECT ANSWER. 1. (I pt) If the solubility of sodium chloride at 25°C is 36.0 g/100 g water, which of the following best describes what eventually forms after …

(#1)The equilibrium reaction of nitrogen dioxide and oxygen to make nitrogen mon

(#1)The equilibrium reaction of nitrogen dioxide and oxygen to make nitrogen monoxide and ozone, O3, involves an elementary reaction for both the forward and reverse reactions: a)…

(#45) determine the freezing point of a solution that contains 62.8 g of urea di

(#45) determine the freezing point of a solution that contains 62.8 g of urea dissolved in 275 g of water Due vapor pressure of a solution at 25that contains 85.3 g of n (C10H8) i…

(#7) and SDs gel electrophoresis troJ- QUESTIONS Why should there be a small poc

(#7) and SDs gel electrophoresis troJ- QUESTIONS Why should there be a small pocket of air above the solution in the dialysis bag during the dialysis procedure? Why should substan…

(#7) and SDs gel electrophoresis troJ- QUESTIONS Why should there be a small poc

(#7) and SDs gel electrophoresis troJ- QUESTIONS Why should there be a small pocket of air above the solution in the dialysis bag during the dialysis procedure? Why should substan…

(( IN JAVA ONLY )) Write a program that plays a guessing game with the user. Spe

(( IN JAVA ONLY )) Write a program that plays a guessing game with the user. Specifically, your program should randomly pick a number between 1 and 100. Then, ask the user for a g…

(( Physical Chemistry )) - Question) The -electrons in a linear polyene can be m

(( Physical Chemistry )) - Question) The -electrons in a linear polyene can be modeled using a particle in a box, but those in a cyclic polyene are better modeled by a particle on…

((((((( A popular physics demonstration uses a \"fire syringe\" to illustrate ho

((((((( A popular physics demonstration uses a "fire syringe" to illustrate how compressing a gas quickly raises its temperature and ignites a piece of paper. Which statement prov…

(((((((((((((((((((((If you answer correctly i will rate 5 stars and be forever

(((((((((((((((((((((If you answer correctly i will rate 5 stars and be forever grateful.))))))))))))))))))))) 1.) Predict the products of the following reactions. Complete and ba…

(((((((((((((((((((((If you answer correctly i will rate 5 stars and be forever

(((((((((((((((((((((If you answer correctly i will rate 5 stars and be forever grateful.))))))))))))))))))))) 1.) Predict the products of the following reactions. Complete and ba…

((this is not a limiting reagent problem. Rather, this is a stoichiometry proble

((this is not a limiting reagent problem. Rather, this is a stoichiometry problem)) 2CoCl3 (aq) +3 NaCO3 (aq) --- > Co2(CO3)3 (s) + 6 NaCl (aq) Molar masses CoCl3 : 165.28 NaCo…

() 85% le Edit View History Bookmarks People Window Help MasteringChemistry: Hwk

() 85% le Edit View History Bookmarks People Window Help MasteringChemistry: Hwk8: Chapter 17 /session.masteringchemistry.com/myct/itemView?assignmentProblemID-96370637 a Secure h…

() The following equation arises in heat transfer from an object to a surroundin

() The following equation arises in heat transfer from an object to a surrounding fluid: where T and Trare the temperatures of the object and fluid (both in oC), t is time in seco…

() The transition metal compound [Ni(en)s]Cl2 absorbs energy at 3.2x109oules. Wh

() The transition metal compound [Ni(en)s]Cl2 absorbs energy at 3.2x109oules. What color is this compound ? (g) By what two processes do Homo-sapiens "see" the color red? 30 pts) …

() vancomycin, CoeHrsClNg024 Rank these compounds in terms of the mass percentag

() vancomycin, CoeHrsClNg024 Rank these compounds in terms of the mass percentage oxygen they contain. Assessment Criteria 12 culate mole quantities, relative atomic and relative …

(*Construct a Java Program*) Time Calculator Write a program that asks the user

(*Construct a Java Program*) Time Calculator Write a program that asks the user to enter a number of seconds. * There are 60 seconds in a minute. If the number of seconds entered …

(*Construct in C program using Visual Studio 2013*) In this assignment we will c

(*Construct in C program using Visual Studio 2013*) In this assignment we will construct a simple C preprocessor, pre.c, that will prepare a C program, test.c, for compilation. Th…

(*Construct in C program using Visual Studio 2013*) In this assignment we will c

(*Construct in C program using Visual Studio 2013*) In this assignment we will construct a simple C preprocessor, pre.c, that will prepare a C program, test.c, for compilation. Th…

(+ 1 2 3 45) (* 1 2 3 4 (\\ 1 3 4 (* 12 34 54) 32 (+ 34 56))) I want to develop

(+ 1 2 3 45) (* 1 2 3 4 ( 1 3 4 (* 12 34 54) 32 (+ 34 56))) I want to develop the grammar for the above language in ANTLR. This is my ANTLR code but it has error in it. stat      …

(+) | 100% | THE PROBLEM The useful lifetime of the Mössbauer Spectrometer on a

(+) | 100% | THE PROBLEM The useful lifetime of the Mössbauer Spectrometer on a Rover depends on the lifetime of the emission of gamma rays at a particular minimum level by a 10 m…

(+)ibuprofein has a specific rotation of 57(degrees). Supposed a mixture of (+)-

(+)ibuprofein has a specific rotation of 57(degrees). Supposed a mixture of (+)- and (-)-ibuprofein is analzyes by polarimetry and the observed rotation is +48 degrees. What is th…

(+10) Answer the following questions. a. Identify each of the following terms as

(+10) Answer the following questions. a. Identify each of the following terms as an intensive property, extensive property, or not a state property. i. Pressure ii. Temperature ii…

(-)-Cameroonanol has been isolated from the essential oil of Echinops giganteus

(-)-Cameroonanol has been isolated from the essential oil of Echinops giganteus (globe thistle) plants and it is associated with a strong woody fragrance. Its structure, including…

(0 1) The reaction bloodstream, is given If moment, what is the rate of disappea

(0 1) The reaction bloodstream, is given If moment, what is the rate of disappearance of C2Hg0 at that moment? that occurs in a Breathalyzer, a device used to determine the alcoho…

(06pts) 4. Find the AHnn for. C(s) + Olg) CO2(g) using the following: SrO(s) + C

(06pts) 4. Find the AHnn for. C(s) + Olg) CO2(g) using the following: SrO(s) + CO2(g) Scots) &H;=-234 kJ +1184 kJ 2scots) 2Sr(s) + 2C(s) + 302(g) »-+2440 kJ Show all work! (07…

(1 bookmark) Treatment of ammonia with phenol in the presence of hypochlorite yi

(1 bookmark) Treatment of ammonia with phenol in the presence of hypochlorite yields indophenol, a blue product absorbing light at 625 nm, which can be used for the spectrophotome…

(1 point) An insulated rigid tank contains a saturated liquid-vapor mix of water

(1 point) An insulated rigid tank contains a saturated liquid-vapor mix of water initially at a pressure of 100 kPa. The mass of the mixture is 5 kg, but only 75.6 % of the total …

(1 point) Draw the structure of the precipitate that forms upon addition of the

(1 point) Draw the structure of the precipitate that forms upon addition of the sulfuric acid to the p-aminobenzoic acid and ethanol. 5. 6, (2 points) Why is it necessary to use 9…

(1 pt) 1. A nonvolatile solute is added to a volatile solvent to form a solution

(1 pt) 1. A nonvolatile solute is added to a volatile solvent to form a solution. Explain, on the molecular level, why the solution has a lower vapor pressure than the pure solven…

(1) (12 points) Consider the weak bases NH3(aq) (Kb = 1.8 105) and NaF(aq) (Ka(H

(1) (12 points) Consider the weak bases NH3(aq) (Kb = 1.8 105) and NaF(aq) (Ka(HF) = 6.8 104) in water. (a) (2 pt) Which is the stronger base, NH3(aq) or F(aq)? Explain your choic…

(1) (2) 46. Complete and of veter. In this carbon (1) condensed. process. (2) po

(1) (2) 46. Complete and of veter. In this carbon (1) condensed. process. (2) polymerized. (3) reduced. (4) oxidized. (5) hydrolyzed. W1. Which is the product of the following 2nd…

(1) (40 points) Multiple-Choice Questions 1) Which pair of elements from differe

(1) (40 points) Multiple-Choice Questions 1) Which pair of elements from different groups resemble each other the most in their chemical A) Be and B B)Al and Si C) Li and Be D) Al…

(1) (a) This is a physical change where the solid crystals of Iodine change unde

(1) (a) This is a physical change where the solid crystals of Iodine change undergo sublimation to give purple vapors. (b) Heating cobalt chloride crystals is a chemical change be…

(1) A 40.0 mL sample of 0.134 M HNO2 is titrated with 0.262 M KOH. (Ka for HNO2

(1) A 40.0 mL sample of 0.134 M HNO2 is titrated with 0.262 M KOH. (Ka for HNO2 is 4.57×104.) Determine the pH at the equivalence point for the titration of HNO2 and KOH (2) Consi…

(1) A 40.0 mL sample of 0.134 M HNO2 is titrated with 0.262 M KOH. (Ka for HNO2

(1) A 40.0 mL sample of 0.134 M HNO2 is titrated with 0.262 M KOH. (Ka for HNO2 is 4.57×104.) Determine the pH at the equivalence point for the titration of HNO2 and KOH (2) Consi…

(1) A question about Operating Systems: a) What are segments in memory managemen

(1) A question about Operating Systems: a) What are segments in memory management, and what are the advantages and disadvantages of a memory architecture that uses only segments? …

(1) A student synthesized Alum and was able to recover a mass of 4.455g of produ

(1) A student synthesized Alum and was able to recover a mass of 4.455g of product. They have calcuated the theoretical yield as 5.668g. calculate the percent yield for this react…

(1) A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrate

(1) A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, t…

(1) Assignment #5 is an extension/modification of assignment #4-methods. Thus, y

(1) Assignment #5 is an extension/modification of assignment #4-methods. Thus, you can use the same names as Assignment #4 for getGrades class, main method and qualitypoints metho…

(1) Au+(aq) + e- Au(s) E° = 1.69 V (2) N2O(g) + 2 H+(aq) + 2 e- N2(g) + H2O(l) E

(1) Au+(aq) + e- Au(s) E° = 1.69 V (2) N2O(g) + 2 H+(aq) + 2 e- N2(g) + H2O(l) E° = 1.77 V (3) Cr3+(aq) + 3 e- Cr(s) E° = -0.74 V ** Please help me fix the ones with the red X nex…

(1) Benzene (C6H6) as a gas burns in air at 200% theoretical air. In answering t

(1) Benzene (C6H6) as a gas burns in air at 200% theoretical air. In answering the following parts, you may assume the products of combustion are CO2, H O, O2, and N2. You may als…

(1) Calculate the G°rxn using the following information. 2HNO3(aq) + NO(g) 3 NO2

(1) Calculate the G°rxn using the following information. 2HNO3(aq) + NO(g) 3 NO2(g) + H2O(l) H°f (kJ/mol) -207.0 91.3 33.2 -285.8 S°(J/molK) 46.0 210.8 240.1 70.0 G°rxn = ? (2) Ab…

(1) Chapter 12 Question 2 - Algorithmic Part A How many kJ of heat are needed to

(1) Chapter 12 Question 2 - Algorithmic Part A How many kJ of heat are needed to completely vaporize 43.2 g of H2O? The heat of vaporization for water at the boiling point is 40.6…

(1) Chapter 15 Question 22 - Multiple Choice When writing the expression for an

(1) Chapter 15 Question 22 - Multiple Choice When writing the expression for an equilibrium constant, which type of substance IS included? (2) Chapter 15 Question 23 - Multiple Ch…

(1) Chemical Equilibrium Characteristics Consider the reaction: Which of the fol

(1) Chemical Equilibrium Characteristics Consider the reaction: Which of the following statements are true and which are false. a) 1 mol of H2O(g) and 1 mol of CO(g) are placed in…

(1) Chemical Equilibrium Characteristics Consider the reaction: Which of the fol

(1) Chemical Equilibrium Characteristics Consider the reaction: Which of the following statements are true and which are false. a) 1 mol of H2O(g) and 1 mol of CO(g) are placed in…