Chemistry concepts and calculations

a. At some temperature, K = 244 for the gas phase reaction What is the concentra

a. At some temperature, K = 244 for the gas phase reaction What is the concentration of HF in an equilibrium mixture established by adding 3.51 mol each of H2 and F2 to a 1.00 L c…

a. Below is the reaction to synthesize DEET, the insect repellant using an amide

a. Below is the reaction to synthesize DEET, the insect repellant using an amide bond coupling agent, DCC. Excess diethyl amine base (2) is utilized in this synthesis. Answer the …

a. Boiling water in the water bath (i) What kind of change did you observe, phys

a. Boiling water in the water bath (i) What kind of change did you observe, physical or chemical? (ii) Give reasoning for your answer above. (iii) Write a balanced chemical equati…

a. Buffer 1: 30 mL of sodium dihydrogen phosphate and 20 mL sodium hydrogen phos

a. Buffer 1: 30 mL of sodium dihydrogen phosphate and 20 mL sodium hydrogen phosphate You will determine the theoretical pH of the buffer systems you will be creating in lab. Maki…

a. CHCHOH(1) + 3 Odg) 2 CO2(g) + 3 H2O(g) b. H2CO3(aq) + 2 LiOH(aq) Li2CO3(aq) +

a. CHCHOH(1) + 3 Odg) 2 CO2(g) + 3 H2O(g) b. H2CO3(aq) + 2 LiOH(aq) Li2CO3(aq) + 2 H2O(1) c. 2 HCl(aq) + CaCO3(s) CaCl2(aq) + H2O(l) + CO2(g) d. FeBr3(aq) + 3 NaOH(aq) Fe(OH)3(s) …

a. CHCHOH(1) + 3 Odg) 2 CO2(g) + 3 H2O(g) b. H2CO3(aq) + 2 LiOH(aq) Li2CO3(aq) +

a. CHCHOH(1) + 3 Odg) 2 CO2(g) + 3 H2O(g) b. H2CO3(aq) + 2 LiOH(aq) Li2CO3(aq) + 2 H2O(1) c. 2 HCl(aq) + CaCO3(s) CaCl2(aq) + H2O(l) + CO2(g) d. FeBr3(aq) + 3 NaOH(aq) Fe(OH)3(s) …

a. Calculate the mass (in grams) of potassium hydroxide in 500 cm^3 of a KOH-H2O

a. Calculate the mass (in grams) of potassium hydroxide in 500 cm^3 of a KOH-H2O solution at a concentration of 2 M KOH solution. b. A mixture of gases has the following compositi…

a. Calculate the moles of H2 produced from each trial b. Vol of gas was not at s

a. Calculate the moles of H2 produced from each trial b. Vol of gas was not at standard temp and pressure. Convert the volume at the pressure and temperature of the experiment to …

a. Calculate the pH at which Aluminum Hydroxide just starts to precipitate from

a. Calculate the pH at which Aluminum Hydroxide just starts to precipitate from a 0.00066 M solution of Aluminum nitrate. Ksp for aluminum hydroxide = 3.0 X 10-34 b. A 3.07 X 10-6…

a. Carbon monoxide and nitrogen dioxide react to form carbon dioxide and nitric

a. Carbon monoxide and nitrogen dioxide react to form carbon dioxide and nitric oxide. A series of experiments were performed to gain understanding of the kinetics of the reaction…

a. Carbon monoxide and nitrogen dioxide react to form carbon dioxide and nitric

a. Carbon monoxide and nitrogen dioxide react to form carbon dioxide and nitric oxide. A series of experiments were performed to gain understanding of the kinetics of the reaction…

a. Choose all the correct responses about the Benedict\'s Test. Benedict\'s test

a. Choose all the correct responses about the Benedict's Test.    Benedict's tests for protein    The Benedict's reagent is blue    Benedict's tests for reducing sugars    A color…

a. Choose the best definition for mass number. Mass number is the mass of an ato

a. Choose the best definition for mass number. Mass number is the mass of an atom. Mass number is the mass of all protons in an atom. Mass number is the sum of the number of proto…

a. Circle the chiral centers in the following molecule and identify them as R or

a. Circle the chiral centers in the following molecule and identify them as R or S Suggest a second component for synthesis of the molecule above via a Diels-Alder reaction (i.e. …

a. Classify each of the compounds as soluble or not soluble: sodium phosphate __

a. Classify each of the compounds as soluble or not soluble: sodium phosphate_________ copper(II) acetate_________ magnesium iodide lead hydroxide_________ iron(II) carbonate_____…

a. Compared with a conventional compound microscope, a modern confocal microscop

a. Compared with a conventional compound microscope, a modern confocal microscope has two distinctive features in its structure. Name the two features, and describe their need in …

a. Complete and balance: CaO( s ) + HNO 3 ( aq ) b. Calculate delta H o for the

a. Complete and balance: CaO(s) + HNO3(aq) b. Calculate delta Ho for the reaction in part a. c. Calculate delta So for the reaction in part a. d. Show how you would calculate delt…

a. Complete and balance: CaO( s ) + HNO 3 ( aq ) b. Calculate delta H o for the

a. Complete and balance: CaO(s) + HNO3(aq) b. Calculate delta Ho for the reaction in part a. c. Calculate delta So for the reaction in part a. d. Show how you would calculate delt…

a. Compute the standard enthalpy of vaporization of water at 340 K. You may assu

a. Compute the standard enthalpy of vaporization of water at 340 K. You may assume that any relevant heat capacities are independent of temperature. b. Compute the enthalpy of vap…

a. Consider the following multistep reaction: \ m A + B\\; \ ightarrow AB\\;(slo

a. Consider the following multistep reaction: m A + B; ightarrow AB;(slow) underline{ m A + AB ightarrow A_2B ; (fast)} ;; m 2A + B ; ightarrow ; A_2B; (overall) Based on this mec…

a. Consider the following multistep reaction: \ m A + B\\; \ ightarrow AB\\;(slo

a. Consider the following multistep reaction: m A + B; ightarrow AB;(slow) underline{ m A + AB ightarrow A_2B ; (fast)} ;; m 2A + B ; ightarrow ; A_2B; (overall) Based on this mec…

a. Consider the following system at equilibrium: D(aq)+E(aq)F(aq) Classify ea

a. Consider the following system at equilibrium: D(aq)+E(aq)<=>F(aq) Classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no s…

a. Consider these two solutions: Solution A is prepared by dissolving 5.00 g of

a. Consider these two solutions: Solution A is prepared by dissolving 5.00 g of MgCl2 in enough water to make .250 L of solutions, and Solution B is prepared by dissolving 5.00 g …

a. Create a class named Circle with fields named radius, diameter, and area. Inc

a. Create a class named Circle with fields named radius, diameter, and area. Include a constructor that sets the radius to 1 and calculates the other two values. Also include meth…

a. Create a class named Circle with fields named radius, diameter, and area. Inc

a. Create a class named Circle with fields named radius, diameter, and area. Include a constructor that sets the radius to 1 and calculates the other two values. Also include meth…

a. Create a class named Lease with fields that hold an apartment tenant\'s name,

a. Create a class named Lease with fields that hold an apartment tenant's name, apartment Number, monthly   rent amount, and term of the lease in months. Include a constructor tha…

a. Create a program named FriendList that declares an array of eight Friend obje

a.   Create a program named FriendList that declares an array of eight Friend objects and prompts the user to enter data about the friends. Display the Friend objects in alphabeti…

a. Create an Account clas s, which is the base class for all accounts that has p

a.Create an Account class, which is the base class for all accounts that has public methods to get and set the balance as well as to withdraw, deposit, and transfer funds from one…

a. Cyclopropane, C_3H_6, is an anesthetic given by inhalation. How many grams ar

a. Cyclopropane, C_3H_6, is an anesthetic given by inhalation. How many grams are in 0.25 mole of cyclopropane? b. The sedative Demerol hydrochloride has the formula C_15H_22ClNO_…

a. Define reaction Gibbs energy and state its units. On a sketch diagram shoe ho

a. Define reaction Gibbs energy and state its units. On a sketch diagram shoe how the reaction Gibbs energy varies with extent of reaction. State the condition under which a react…

a. Define the degree of dissociation as a-6 na where 2 is the number of moles of

a. Define the degree of dissociation as a-6 na where 2 is the number of moles of Cl g) present at equilibrium and n represents the number of moles of C g that would be present in …

a. Define the terms exothermic and endothermic. In a calorimetric experiment, ho

a. Define the terms exothermic and endothermic. In a calorimetric experiment, how does one determine whether a reaction is one or the other? b. In a calorimetric experiment, why i…

a. Deionized water b. Buffer solution (acetic acid, sodium acetate mixture) 6. D

a. Deionized water b. Buffer solution (acetic acid, sodium acetate mixture) 6. Describe what you should do if an acid was accidentally spilled on your hands. 7. A 3.00ml aliquot o…

a. Delocalized electrons are electrons that are able to move more freely within

a. Delocalized electrons are electrons that are able to move more freely within their atomic orbitals. The extra room to move gives the atoms special properties. b. Delocalized el…

a. Describe Name two the dynamic that exists between the water tanks equilibrium

a. Describe Name two the dynamic that exists between the water tanks equilibrium right. Desk No. b. Explain how LeChatelier's principle applies when the faucet on the right tank i…

a. Design a class to hold a JobBid. Each JobBid contains a bid number and a quot

a. Design a class to hold a JobBid. Each JobBid contains a bid number and a quoted price. Each JobBid also contains overloaded extraction and insertion operators. b. Include an ov…

a. Determine the molecular formula (MF=CnHn+r) from the molecular ion on the MS

a. Determine the molecular formula (MF=CnHn+r) from the molecular ion on the MS using the Rule of 13 where (MW/13)=n+r. Since the molecular peak is an odd number this is an indica…

a. Determine which of the reactants was thelimiting reactant, which was in exces

a. Determine which of the reactants was thelimiting reactant, which was in excess and calculate the% yield. b. Howmany grams of each reactant will be left over at the end of there…

a. Devise a LLE extraction method that could be used to isolate cocaine (pKa=8.6

a. Devise a LLE extraction method that could be used to isolate cocaine (pKa=8.6) from methamphetamine (pKa=9.9) in a mixture of the drugs with powdered sugar, and cornstarch. Giv…

a. Discuss what the Reliability and Performance Monitor does in Windows Server 2

a. Discuss what the Reliability and Performance Monitor does in Windows Server 2008 and how to access it and what are all its functions. What are data collector sets and how to wo…

a. Discuss which technique, simple distillation or fractional distillation, shal

a.       Discuss which technique, simple distillation or fractional distillation, shall be the most efficient on purifying the mixture of solvents? Elaborate     (4 points) b.    …

a. Do the systems form one layer (miscible) or two layers (immiscible)? (I pt) b

a. Do the systems form one layer (miscible) or two layers (immiscible)? (I pt) b. Do the results match your predictions? Explain with detail.(1 pt) Given the results and that wate…

a. Electron affinity is higher for C than N as Nitrogen has half filled orbital

a. Electron affinity is higher for C than N as Nitrogen has half filled orbital thus less exothermic The electron affinity of Br is higher than Ar, As Argon has a completely fille…

a. Estimate the total porosity of the pack. Make reasonable assumptions that you

a. Estimate the total porosity of the pack. Make reasonable assumptions that you deem necessary to solve the problem. b. We know that the effective porosity of the pack is 47.6%. …

a. Estimate the total porosity of the pack. Make reasonable assumptions that you

a. Estimate the total porosity of the pack. Make reasonable assumptions that you deem necessary to solve the problem. b. We know that the effective porosity of the pack is 47.6%. …

a. Explain the difference between order and molecularity in a reaction. b. Expla

a. Explain the difference between order and molecularity in a reaction. b. Explain the difference between a transition state and a reaction intermediate. c. Explain the difference…

a. Fe^3 + is oxidized. b. Fe^3 + increases in oxidation number. c. Fe^3 + is red

a. Fe^3 + is oxidized. b. Fe^3 + increases in oxidation number. c. Fe^3 + is reduced. d. F is reduced. In the chemical reaction, Zn (s) + CuSO4 (aq) rightarrow ZnSO4 + (aq) + Cu (…

a. Find a biopolymer and briefly describe its chemical composition, whether it w

a. Find a biopolymer and briefly describe its chemical composition, whether it would be considered an addition polymer or condensation polymer and its important physical propertie…

a. Find out about Alabama water supply and how the water is used (agriculture, i

a. Find out about Alabama water supply and how the water is used (agriculture, industry, domestic users, others). b. What are the likely to be the trends in its use over the next …

a. Fix the following method before adding it to the class. public void getPrice

         a.      Fix the following method before adding it to the class.     public void getPrice ()     {         return price;     } b.      Fix the following method before addi…