Chemistry concepts and calculations

please help me question 4 concentration of all substances when new equilibrium i

please help me question 4 concentration of all substances when new equilibrium is established. Question 4: The product solubility K) of Cas(POsh is 2xlo- at 25°C Calculate the sol…

please help me solve these problems. thank you very much have a wonderful day. p

please help me solve these problems. thank you very much have a wonderful day. please write clearly and in print not cursive Experiment 12 Advance Study Assignment: The Alkaline E…

please help me solve these questions Gaseous ammonia can be injected into the ex

please help me solve these questions Gaseous ammonia can be injected into the exhaust stream of a coal-burning power plant to reduce the pollutant NO to N2 according to the reacti…

please help me solve these questions Gaseous ammonia can be injected into the ex

please help me solve these questions Gaseous ammonia can be injected into the exhaust stream of a coal-burning power plant to reduce the pollutant NO to N2 according to the reacti…

please help me solve this with steps You must show all your work, including unit

please help me solve this with steps You must show all your work, including units, and report final results with the correct number of significant figures on all pre-lab questions…

please help me thank you 121L QUESTIONS Indicate how each of the following would

please help me thank you 121L QUESTIONS Indicate how each of the following would affect the value of the absorbance (too low, too high, no effect) of the indicated solution. Expla…

please help me this Electrochemical cell lab lead bar+lead(2)nitrate(0.10M), Zin

please help me this Electrochemical cell lab lead bar+lead(2)nitrate(0.10M), Zinc sulfite(0.10M)+zinc bar. Lead and Zinc Voltaic Cell Write the cell diagram (notation) for the cel…

please help me this programming project in c++. i would appreciate you giving an

please help me this programming project in c++. i would appreciate you giving an example of a sample output. Maze Routing - Lee Algorithm Find a path from S to T by "wave propagat…

please help me to answer the questions (7-12) and (7-14) that in yellow mark !!

please help me to answer the questions (7-12) and (7-14) that in yellow mark !! 348 PART III Chemical Reactions 7.11 Give the approximate pKs values for the following acids (b) HN…

please help me to draw the map like example below:(instruction) Construct a Conc

please help me to draw the map like example below:(instruction) Construct a Concept Map: Chemical Quantities are counted using the atomic mass can be used to convert atoms from ha…

please help me to solve this problem with acurate answer. (Nuclear Energy ) Expl

please help me to solve this problem with acurate answer. (Nuclear Energy ) Explain why aluminum used as a sacrificial anode needs to be kept in a solution of chloride ions. Sacri…

please help me what is the difference between a homogeneous and heterogeneousmix

please help me what is the difference between a homogeneous and heterogeneousmixture? In th experiment, you are going to separate a solidmixture of salt, sand, and silt into indiv…

please help me with # 8 and# 9? Do not understand how to do the steps? 6) what m

please help me with # 8 and# 9? Do not understand how to do the steps? 6) what mass of sucrose (density a 1.58 g/cm is to have a volame 151cm 7) The density of iron (Fe) is 7.86 g…

please help me with #2 I don\'t understand this problem in an experiment to dete

please help me with #2 I don't understand this problem in an experiment to determine the molecular weight and the ioeizarion ascotie acid (vitamin s for milliliters of solani 1371…

please help me with A, B, and C. Paledzbic and Mesozoic d Archean and Proterozoi

please help me with A, B, and C. Paledzbic and Mesozoic d Archean and Proterozoic d. Proterozoic and Phanerozoic c. Mesozoic and Cenozoic Answer two of the three following questio…

please help me with Questions (6-9 A to F) and (6-12A) 6 Solid-State Chemistry w

please help me with Questions (6-9 A to F) and (6-12A) 6 Solid-State Chemistry w that, sor a cubic lattice, the vector TTT is a perpendicular to the 111 crystal face 6.4 Show 305 …

please help me with a correct answer for self-test 5.7 EXAMPLE 5.7 Interpreting

please help me with a correct answer for self-test 5.7 EXAMPLE 5.7 Interpreting potential data to identify bonding trends in complexes Ruthenium is located immediately below iron …

please help me with finding moles of lead ransferred, mol and molar mass of lead

please help me with finding moles of lead ransferred, mol and molar mass of lead , g mol-1, for trail 1 and for trail 2 please help wih molar mass of lead g mol-1 , moles of lead …

please help me with question 2 a and b POST - LAB QUESTIONS 1. What difference i

please help me with question 2 a and b POST - LAB QUESTIONS 1. What difference in physical properties allows you to make each of these separations? (a) Salt from water Sal s Solub…

please help me with question 4 too. thanks Consider the reactions below: Sochum

please help me with question 4 too. thanks Consider the reactions below: Sochum ethevck Etherol Na H20 ?? A) + Na OH Na H20 B) Na OH Which of the following statement is INCORRECT?…

please help me with redox equation!! Thx a lot!!! Identify elements whose redox

please help me with redox equation!! Thx a lot!!! Identify elements whose redox state is changing (e.g O and Fe) so you can separate the overall reaction into oxidation and reduct…

please help me with the correct answers for these TWO questions. Using the appro

please help me with the correct answers for these TWO questions. Using the appropriate material, adsorb the spill and dispose of the saturated adsorbant properly b. Call 911 c. Di…

please help me with these 3 prelab questions thank you!! Assess your preparation

please help me with these 3 prelab questions thank you!! Assess your preparation and understanding of today's work by answering the questions below. Your instructor will collect t…

please help me with these practice test problems it will help me study for the u

please help me with these practice test problems it will help me study for the upcoming test thank you and much appreciated d. How much of the ER remains when the reaction goes to…

please help me with these reactions... CONCLUSIONS For each test tube, write the

please help me with these reactions... CONCLUSIONS For each test tube, write the balanced molecular reaction. Also write the total ionic reaction and net ionic reaction. If no rea…

please help me with this kinetics qustions of true or false thank you Please ind

please help me with this kinetics qustions of true or false thank you Please indicate whether each of the following statements is true ("T") or false ("F"). Please circle the corr…

please help me with this question in C language Someone accidentally deleted the

please help me with this question in C language Someone accidentally deleted the C standard library, so now you have to rewrite it from scratch. Start with implementing a safe str…

please help me write this c program. Write a program that reads an integer k fro

please help me write this c program. Write a program that reads an integer k from user and finds the number of elements that are divisible by k in the file assign4.txt. A number n…

please help me, really need to get this right. Table 2: Initial rates of reactio

please help me, really need to get this right. Table 2: Initial rates of reaction between Beta-galactosidase and lactose at different lactose concentrations a. Determine the KM an…

please help me. (A) Balance the copper reactions: (i ) Cu(s) + HNO 3 (aq) -> Cu(

please help me. (A) Balance the copper reactions:       (i ) Cu(s) +   HNO3(aq)   -> Cu(NO3)2 (aq) + NO2(g) + H2O (l) (B) In reaction (i), suppose that you add 12.8 mL of 6 Mni…

please help me. Than In this step, you start with three drops each of solution o

please help me. Than In this step, you start with three drops each of solution of Group II cations Fe^3+, Co^2+, Ni^2+ and Mn^2+ You add concentrated ammonia to make the solution …

please help me. Thanks.Colligative Properties. 1. Draw hand on the grid on your

please help me. Thanks.Colligative Properties. 1. Draw hand on the grid on your graph what the freezing point bel a cool curve plot for the following data. Indicate is. Label the …

please help me. thanks The integrated rate laws for zero-, first-, and second-or

please help me. thanks The integrated rate laws for zero-, first-, and second-order reaction may be arranged such that they resemble the equation for a straight line,y=mx+b. Part …

please help me.. I want to know how to get the answer The percent composition of

please help me.. I want to know how to get the answer The percent composition of a hydrcarbon is found to be 92.3%carbon and 7.7% hydrogen. a) What is the emirical formula of the …

please help me.. Two solutions namely, 500mL of 0.50M HCl and 500mL of 0.50MNaOH

please help me.. Two solutions namely, 500mL of 0.50M HCl and 500mL of 0.50MNaOH at the same temperature of 22.0 0C are mixed in aconstant pressure calorimeter. The heat capacity …

please help me... Q: What is the difference between the Scientist/Engineer\'scal

please help me... Q: What is the difference between the Scientist/Engineer'scalorie and the dietician's Calorie? The energy released when afood sample is burned(in a calorimeter) …

please help me... You are given the following standard enthalpies of formationat

please help me... You are given the following standard enthalpies of formationat 25 0C. NH4OH(aq)          -80.29 kJ/mol H+(aq)                          0 kJ/mol NH4+(aq)         …

please help me...it should be finished within 1 hour. I cannot do this. thanks.

please help me...it should be finished within 1 hour. I cannot do this. thanks. In figure 3.3. pg. 107, the 4 pi electrons of a Butadiene molecule was modeled as free electrons in…

please help me...it should be finished within 1 hour. I cannot do this. thanks.

please help me...it should be finished within 1 hour. I cannot do this. thanks. In figure 3.3. pg. 107, the 4 pi electrons of a Butadiene molecule was modeled as free electrons in…

please help number and show work and steps so i can understand it and follow it

please help number and show work and steps so i can understand it and follow it What is the maximum amount in grams of CO2 produced when 6.00 grams of carbon combines with oxygen …

please help solving Thermal pollution, the release of large amounts of heat into

please help solving Thermal pollution, the release of large amounts of heat into rivers, is a serious problem near power plants and can affect the survival of some species of fish…

please help thank u Experiment 9: This experiment explores Hess\' Law, a corners

please help thank u Experiment 9: This experiment explores Hess' Law, a cornerstone of thermochemistry. The enthalpy of reaction delta H for two acid-base reactions serves as key …

please help thank you In order to receive full credit you must Shown below is a

please help thank you In order to receive full credit you must Shown below is a chemical reaction for which the reactants and products are unknown A + B rightarrow C + D Forty mil…

please help thank you QUESTIONS Indicate how each of the following would affect

please help thank you QUESTIONS Indicate how each of the following would affect the value of the absorbance (too low, too high, no effect) of the indicated solution. Explain your …

please help this is all we did for C. Effect of adding a strong acid base to an

please help this is all we did for C. Effect of adding a strong acid base to an amphoteric hydroxide 1. Obtain approximately 20.0 mL of 1.0 M zinc nitrate solution and place it in…

please help this question was witten by Gen Chem Lab Coordinator at Western Wash

please help this question was witten by Gen Chem Lab Coordinator at Western Washington University (W Explain why the conductivity of 0.126 M Nal(aq) is about twice that of 0.063 M…

please help urgent must show work please Sher ll or work for full credit 1 Calcu

please help urgent must show work please Sher ll or work for full credit 1 Calculate the energy and frequency of light that is emitted when un excited electron in the hydrogen Nam…

please help with #7 and #8. 7. A buffer is prepared by adding 20.0 g of acetic a

please help with #7 and #8. 7. A buffer is prepared by adding 20.0 g of acetic acid (HC2Hs02) and 20.0 g of sodium acetate (NaC2Ha02) to enough water to form 2.00 L of solution. (…

please help with 10& 12 asap tps://eagleonline.hccs.edu/courses/61048/pages/form

please help with 10& 12 asap tps://eagleonline.hccs.edu/courses/61048/pages/formula-mass-an d-the-mole-concept?module item id-2003865 MyLab & Mastering HCC EAGLE ONLINE M …

please help with 21!! The equilibrium constant is 4.31 x 10 4 at 375 degree C: N

please help with 21!! The equilibrium constant is 4.31 x 10 4 at 375 degree C: N2(g)*3H2(g) 2NH3(g) In a certain experiment, a chemist starts with 0.862atm N? and 0.373 atm H2 in …