Chemistry concepts and calculations

please help. I know it\'s a lot but that\'s why I offered 750 points. Determine

please help. I know it's a lot but that's why I offered 750 points. Determine if the following systems of equations can be solved; if yes. solve them: x + y = z (x + y)2 = 5z 3x2 …

please help. Thanks In this step, you start with three drops each of solutions o

please help. Thanks In this step, you start with three drops each of solutions of Group II cations: Pb^2+, Bi^3+, Cu^2+ and Cd^2+. You then add (NH_4)_2 S(aq) to form a precipitat…

please help. Thanks In this step, you start with three drops each of solutions o

please help. Thanks In this step, you start with three drops each of solutions of Group III cations: Fe^3+, Co^2+, Ni^2+ and Mn^2+. You add concentrated ammonia to make the soluti…

please help. The overlap integral between a p(z) orbital and an s orbital on an

please help. The overlap integral between a p(z) orbital and an s orbital on an adjacent atom is given by S = S sigma cos Theta. where sigma is the angle of the "bond" to the z ax…

please help. find the percent error. thank you la. Draw a smooth best-fit curve

please help. find the percent error. thank you la. Draw a smooth best-fit curve and indicate Tr and T, on the graph. We are going to assume that the heat of solution is instantane…

please help. if the answer is not correct, I won\'t give any credit. sorry. dapt

please help. if the answer is not correct, I won't give any credit. sorry. dapted tron Workshop Chemisty b. The urine of heavy red meat eaters is generally more acidic c tha vegat…

please help.Calculated by the freezing point depression QUESTIONS 1. How would t

please help.Calculated by the freezing point depression QUESTIONS 1. How would the following errors affect the calculated value of the molar mass (high, low, or no effect), f you …

please help? The rate of a chemical reaction may be increased by a. increasing t

please help? The rate of a chemical reaction may be increased by a. increasing the frequency of molecular collision b. increasing the energy of molicular collision c. bowering the…

please i need a correct steps and solution. please not guessing the answer. Than

please i need a correct steps and solution. please not guessing the answer. Thank You A substance has a TLV-TWA of 200 ppm, a TLV-STEL of 250 ppm and a TLV-C of 300 ppm. The data …

please i need a correct steps and solution. please not guessing the answer. Than

please i need a correct steps and solution. please not guessing the answer. Thank You A substance has a TLV-TWA of 200 ppm, a TLV-STEL of 250 ppm and a TLV-C of 300 ppm. The data …

please i need a step by step solution.......thanks Strong base is dissolved in 5

please i need a step by step solution.......thanks Strong base is dissolved in 525 mL of 0.400 M weak acid (K_a = 4.38 times 10^-5) to make a buffer with a pH of 4.16. Assume that…

please i need the answer step by step for self test 2c.7 the anwer is -163kjmol-

please i need the answer step by step for self test 2c.7 the anwer is -163kjmol-1 But they did mot show the steps .. Example 2C.2 Using Kirchhoff's law The standard enthalpy of fo…

please i want these solve thank you 8- a) Calculate the molar volume (the volume

please i want these solve thank you 8- a) Calculate the molar volume (the volume occupied by one mole) of sodium metal, Na. The density of Na is 0.971 g/mL b) The liquid CHBr, has…

please i want these solve thank you Mass, Moles, Formulas, and Number of Particl

please i want these solve thank you Mass, Moles, Formulas, and Number of Particles 6- A sample of glucose, C,H,20, contains 2.0x 1022 atoms of carbon. a) How many atoms of hydroge…

please implement these interfaces in the bottom part where it says public class!

please implement these interfaces in the bottom part where it says public class! package interfaces; import java.util.List; public interface TreeTraversals<E> {    /**    * …

please just use dimensional analysis ACID BASE TITRATIONS OBJECTIVES To learn ge

please just use dimensional analysis ACID BASE TITRATIONS OBJECTIVES To learn general techniques generate a standardized To determine concentration of various acid samples SAFETY …

please just use dimensional analysis B. Determination of the molarity of an unkn

please just use dimensional analysis B. Determination of the molarity of an unknown acid Your grade wil be determined by how dosely your experimental value agrees with the true va…

please justify your answer with a diagram and explanation. A hypothetical compou

please justify your answer with a diagram and explanation. A hypothetical compound with formula AB_2O_4 adopts an FCC crystal structure where O^2- ions form the lattice points. A^…

please label answers for points!!! Thanks in advance 1) An infrared wavelength o

please label answers for points!!! Thanks in advance 1) An infrared wavelength of 4.48 mum is equivalent to a wavenumber of ___cm^-1. 2) Which region of the electromagnetic spectr…

please label answers. thanks in advance 15. (2) a) Number the following acids in

please label answers. thanks in advance 15. (2) a) Number the following acids in order of increasing acidity (weakest acid ? 1st): b) List the following bases in order of increasi…

please let me you where I did wrong.. please help EARSON praMous 30 of 32 NO, So

please let me you where I did wrong.. please help EARSON praMous 30 of 32 NO, So,2 monium NH CIOs perchlorate us calcium bromide was mixed with aqueous gold(l) perchlorate and a c…

please make an easy way to solve this problem??!! Step 3 Transfer4.00 mDof supe

please make an easy way to solve this problem??!! Step 3 Transfer4.00 mDof supe to a fresh test tube and add 1.00 mL of solution containing ferrozine and buffer Measure the absorb…

please match the following responses with the questions below. A Titrant B Buret

please match the following responses with the questions below. A Titrant B Buret C For this experiment: the condition that is true at the endpoint D Endpoint E 6M NaOH (sodium hyd…

please need help 1.)A student conducting the iodine clock experiment accidentall

please need help 1.)A student conducting the iodine clock experiment accidentally makes an S2O32- stock solution that is too concentrated. How will this affect the rate measuremen…

please need help with this question, has all tge info mments Question 6 temperat

please need help with this question, has all tge info mments Question 6 temperature Tof an ideal gas. among Here of moles n, relationship number the P, law volume describes V, The…

please need help woth this volume of olarity of Submit Hints My Answers Gave Up

please need help woth this volume of olarity of Submit Hints My Answers Gave Up Review Part Part B Redox titrations are used to determine the amounts of oxidizing and reducing age…

please note I only need Cu2+ in scientific notation...(The last part of the ques

please note I only need Cu2+ in scientific notation...(The last part of the question) A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell …

please note that it has part A,B, & C Balance each of the following redox reacti

please note that it has part A,B, & C Balance each of the following redox reactions occurring in acidic solution. PbO_2 (s) + I^- (ag) rightarrow Pb^2+ (aq) + I_2 (s) Express …

please note that someone else answered this on Chegg saying the answers were: A,

please note that someone else answered this on Chegg saying the answers were: A, D, and F--these are wrong (or there is another correct answer) thanks! Shown below are three van D…

please number answers How many protons are pumped across the inner membrane for

please number answers How many protons are pumped across the inner membrane for each NADH molecule that enters the electron transport chain? 10 6 8 12 How many ATP molecules are s…

please number answers Hydrogen bonds Disulfide bonds Hydrophobic interaction An

please number answers Hydrogen bonds Disulfide bonds Hydrophobic interaction An inorganic substance that assists in an enzyme catalytic process is called a: cofactor coenzyme regu…

please number answers What is the complimentary DNA sequence to the strand below

please number answers What is the complimentary DNA sequence to the strand below? C-G-G-T-T-A-G G-C-C-A-A-T-C C-G-G-T-T-A-G A-T-T-G-G-C-T G-C-C-U-U-U-C The 3'-end of a tRNA molecu…

please only use the basic knowedge such as,,and loop or arrays

please only use the basic knowedge such as<stdio.h>,<math.h>,and loop or arrays in c language. If you buy something online and mistype your credit card number, the web…

please please answer all if the questions!!!!! pleaseeeee Spring 2015 February 2

please please answer all if the questions!!!!! pleaseeeee Spring 2015 February 25, 2015 CHM 256 Examination I First Name: Last Name: Left-hand neighbor: I. Multiple choices and bl…

please please help!! I don\'t understand. Example 3: An airplane pilot sets a co

please please help!! I don't understand. Example 3: An airplane pilot sets a compass course due west and maintains an air speed of 120 mi/hr. After flying for one-half hour, he fi…

please post an image of how you worked this out. step by step. please!? 2. Consi

please post an image of how you worked this out. step by step. please!? 2. Consider the following three reactions: 2 Fe (s) + 6 HCl (aq)       2 FeCl3 (aq) + 3 H2 (g) ......HA Fe2…

please print What is the functional group for a carboxylic acid? an ester? C Wri

please print What is the functional group for a carboxylic acid? an ester? C Write the structural formula for Methanol. Which should have the lower boiling point an alcohol or a c…

please print and space out For the next two carbonyls are sites for addition but

please print and space out For the next two carbonyls are sites for addition but carboxyls are sites for anone + methanol> Pentanoic acid+ methanol True-False Questions(25 mark…

please print not handwriting Assignment for Nuclear Chemistry (from Power point)

please print not handwriting Assignment for Nuclear Chemistry (from Power point) 1. 2. 3. 4. How is the nucleus affected by chemical and physical processes? Explain the letters Z,…

please provide solution in c++ and java 14. Trivia Game In this programming chal

please provide solution in c++ and java 14. Trivia Game In this programming challenge, you will create a simple trivia game for two players. The program will work like this: Start…

please read carefully I need two classes on each sub part a class file and a Tes

please read carefully I need two classes on each sub part a class file and a Test file with the test file containing the main method and objects for the class file. (please make s…

please read the instructions. and the value of f is 49026 and the value of g is

please read the instructions. and the value of f is 49026 and the value of g is 13122. You are tasked to use the same positive integers from Part A to also compute: h = f/g; i = (…

please read the material underneath is not clear to me how to aproach this am no

please read the material underneath is not clear to me how to aproach this am not a chem major so its kind of hard. thanks for the help In Part I, when the solution containing alu…

please read the material underneath is not clear to me how to aproach this am no

please read the material underneath is not clear to me how to aproach this am not a chem major so its kind of hard. thanks for the help In Part I, when the solution containing alu…

please reply with (I don\'t know the answer) if you are not 100% sure about your

please reply with (I don't know the answer) if you are not 100% sure about your answer. PLEASE DO THAT. this is a test and I only have 1 attempt for each question. Sapling Learnin…

please right out answer neatly. not type out (24 points) The decomposition of hy

please right out answer neatly. not type out (24 points) The decomposition of hydrogen sulfide occurs via the following reaction: 2H,S(g) 2H2(g) + S2 (9) At a temperature of 1065 …

please see this picture of the question: http://chuantu.biz/t4/17/1463651226x182

please see this picture of the question: http://chuantu.biz/t4/17/1463651226x1822618092.png A horizontal drum, a cross-section of which is shown below, is being filled with benzen…

please share the answer as soon as possible.. Suppose that you have a set of pro

please share the answer as soon as possible.. Suppose that you have a set of processes that are controlling a set of valves and switches. Valve 1 lets chemical X into the mixing v…

please show ALL work. Dinitrogen tetraoxide is a colorless gas at room temperatu

please show ALL work. Dinitrogen tetraoxide is a colorless gas at room temperature. It can dissociate into nitrogen dioxide, which is a reddish brown gas. Three experiments were r…

please show all U nits and use S ig. Figs and flow of calulations. Background :

please show all Units and use Sig. Figs and flow of calulations. Background: A particle in a box has energies given by the formula En = n2h2/(8mL2) h=6.626 069 57 x 10-34 Js mass …