Chemistry concepts and calculations
117302 questions • Page 31 / 2347
****I have attempted these all on my own and I cannot get them correct. Please o
****I have attempted these all on my own and I cannot get them correct. Please only respond if you are confident in your answer, because I only have a few attempts allowed. Also, …
****PHOSPHONIUM SALT recovered is (carbethoxymethylene)triphenylphosphonium brom
****PHOSPHONIUM SALT recovered is (carbethoxymethylene)triphenylphosphonium bromide.*** Introduction The most effective method of making an alkene selectively is the Wittig reacti…
****PLEASE ANSWER ALL QUESTIONS AND PLEASE ANSWER THEM NEATLY!!**** ***USE THIS
****PLEASE ANSWER ALL QUESTIONS AND PLEASE ANSWER THEM NEATLY!!**** ***USE THIS PHOTO TO ANSWER THE QUESTIONS!!*** ***HERE ARE THE QUESTIONS*** Chapter 21 CARBOHYDRATE METABOLISM …
****Please like a pseudocode/logic or a flowchart like in the book called PROGRA
****Please like a pseudocode/logic or a flowchart like in the book called PROGRAMMING LOGIC AND DESIGN, COMPREHENSIVE, 8TH EDITION BY JOYCE FARRELL. CHAPTER 7 PROGRAM EXERCISE 7a.…
****Remember that Q = [products] p /[reactants] r where p and r are the coeffici
****Remember that Q = [products]p/[reactants]r where p and r are the coefficients of the products and reactants, respectively. Also remember that the number of electrons produced …
****SUPER HARD MASTERING CHEM PROBLEM!!! PLEASE HELP!!! 1. Write an equation for
****SUPER HARD MASTERING CHEM PROBLEM!!! PLEASE HELP!!! 1. Write an equation for the formation of NO2(g) from its elements in its standard states. Express your answer as a chemica…
****Temperature must be in Kelvins in all Gas Law Calculations ***** Boyle’s Law
****Temperature must be in Kelvins in all Gas Law Calculations ***** Boyle’s Law 1) Ammonia gas occupies a volume of 450 mL at a pressure of 90 kPa. What volume will it occupy a…
****calculate the pH of a 0.5M solution of KCN. ****how do contentraion/volumes
****calculate the pH of a 0.5M solution of KCN. ****how do contentraion/volumes of the buffer affect the buffer capcaity Chemistry 106. 106 Name: Post-Lab Assessment Questions 020…
****please help..i was able to get part A but i am getting the wrong answers for
****please help..i was able to get part A but i am getting the wrong answers for part b.c.and d. Calculate the pH of each of the solutions and the change in pH to 0.01 pH units ca…
***Biochemistry Consider the fatty acid below for questions 7-12 H2 CH H3C CSCOA
***Biochemistry Consider the fatty acid below for questions 7-12 H2 CH H3C CSCOA H2 7. Which carbon(s) will be release first after one round of fatty acid oxidation? What is the p…
***C++ program*** Assume that you have two arrays, A and B. Each has 10 cells. C
***C++ program*** Assume that you have two arrays, A and B. Each has 10 cells. Complete these tasks in your program. - Write a function and a loop inside to fill A with the number…
***CHEMICAL KINETICS PROBLEM***PLEASE HELP*** ***Many people have done this prob
***CHEMICAL KINETICS PROBLEM***PLEASE HELP*** ***Many people have done this problem but have gotten the wrong solution. Please be carfeul*** 1. Suppose you inject 30.0 mL of air (…
***CHEMISTRY AQUEOUS EQUILIBRIA QUESTION***PLEASE HELP PLEASE ANSWER BOTH PART A
***CHEMISTRY AQUEOUS EQUILIBRIA QUESTION***PLEASE HELP PLEASE ANSWER BOTH PART A AND PART B! ± Titration of Strong Acid with Strong Base A titration involves adding a reactant of …
***CHEMISTRY AQUEOUS EQUILIBRIA QUESTION***PLEASE HELP*** PLEASE ANSWER CAREFULL
***CHEMISTRY AQUEOUS EQUILIBRIA QUESTION***PLEASE HELP*** PLEASE ANSWER CAREFULLY AND MAKE SURE TO DO ALL PARTS! ± Introduction to Solubility and the Solubility Product Constant L…
***CHEMISTRY PROBLEM***PLEASE HELP!** To begin your experiment, you will calibra
***CHEMISTRY PROBLEM***PLEASE HELP!** To begin your experiment, you will calibrate your apparatus by injecting an into a sealed reaction bottle while monitoring temperature and pr…
***CHEMISTRY QUESTION*** ***ELECTRONIC STRUCTURE OF THE ATOM*** ***PLEASE ANSWER
***CHEMISTRY QUESTION*** ***ELECTRONIC STRUCTURE OF THE ATOM*** ***PLEASE ANSWER CAREFULLY AND COMPLETE ALL PARTS*** To understand electromagnetic radiation and be able to perform…
***CHEMISTRY QUESTION*** ***ELECTRONIC STRUCTURE OF THE ATOM*** ***PLEASE ANSWER
***CHEMISTRY QUESTION*** ***ELECTRONIC STRUCTURE OF THE ATOM*** ***PLEASE ANSWER CAREFULLY AND COMPLETE ALL PARTS*** The Photoelectric Effect Here are some data collected on a sam…
***CHEMISTRY QUESTION***ELECTROCHEMISTRY*** ***PLEASE ANSWER CAREFULLY!!*** Inte
***CHEMISTRY QUESTION***ELECTROCHEMISTRY*** ***PLEASE ANSWER CAREFULLY!!*** Interactive Activity-The Relationship among Eocell, Keq, and Gibbs Free Energy lectrochemical cell the …
***Everything in red i need help with**** Standardization of KMnO4 Determination
***Everything in red i need help with**** Standardization of KMnO4 Determination of Iron …
***INCORRECT RESPONSES (I.R.) ARE AS FOLLOWS*** I.R.#1 P: Mg D:S, P, He I.R.#2 P
***INCORRECT RESPONSES (I.R.) ARE AS FOLLOWS*** I.R.#1 P: Mg D:S, P, He I.R.#2 P. Mg p D. S, He I.R.#3 P. S, Mg D: P, He A Gouy balance is used to determine the magnetic susceptib…
***JAVA PROGRAMMING ASSIGNMENT*** ***Please read carefully*** Go Dolphins!!! Thi
***JAVA PROGRAMMING ASSIGNMENT*** ***Please read carefully*** Go Dolphins!!! This assignment is a simulation of beer drinking football fans and the security guards that love them.…
***JAVA Sum elements column by column (100 points) a. Write a program that reads
***JAVA Sum elements column by column (100 points) a. Write a program that reads an 3 by 4 matrix and displays the sum of each column. Here is the sample run: Enter a 3 by4 matrix…
***MUST SHOW WORK FOR POINTS TO ALL PARTS WITH MY NUMBERS*** 1. One of the analy
***MUST SHOW WORK FOR POINTS TO ALL PARTS WITH MY NUMBERS*** 1. One of the analyses of the composition of the green oxalato-iron complex requires the redox titration of oxalate ag…
***MUST SHOW WORK FOR POINTS*** 1. If a current of 777.7 mA is passed through an
***MUST SHOW WORK FOR POINTS*** 1. If a current of 777.7 mA is passed through an electrochemical cell for 27.09 minutes, what charge, in coulombs, is passed through the cell? Char…
***MUST SHOW WORK FOR POINTS*** The kinetics of the reaction between two substan
***MUST SHOW WORK FOR POINTS*** The kinetics of the reaction between two substances, A and B, was investigated using the method of initial rates in a series of three experiments. …
***MUST SHOW WORK TO ALL PARTS WITH MY NUMBERS FOR POINTS*** 1. Titration of a 0
***MUST SHOW WORK TO ALL PARTS WITH MY NUMBERS FOR POINTS*** 1. Titration of a 0.1417 gram sample of the iron-oxalate complex required, after correction for a blank titration, 16.…
***Multiple Chocie Question*** Esters, specifically ethyl acetate, also appear i
***Multiple Chocie Question*** Esters, specifically ethyl acetate, also appear in wine, contributing to their fruity scents. The ethyl acetate is formed from the reaction of ethan…
***PLEASE READ THIS Just a very quick question and an easy 300 points. I am not
***PLEASE READ THIS Just a very quick question and an easy 300 points. I am not asking to solve this question... I just have one question on the methods of doing it at the end. I …
***Part1: Balance the following chemical equation using the lowest possible whol
***Part1: Balance the following chemical equation using the lowest possible whole number coefficients. (Enter coefficients of one - blanks will be marked incorrect.) ( )CO2 + ( )H…
***Physical Chemistry Question***** The concept of entropy, and the second law o
***Physical Chemistry Question***** The concept of entropy, and the second law of thermodynamics have often been used (usually misused in reality) to “explain” all kinds of things…
***Please Answer #3 only*** A tragedy occurred at Lake Nyos in Cameroon (Africa)
***Please Answer #3 only*** A tragedy occurred at Lake Nyos in Cameroon (Africa) during the summer of 1986 . During the process of unraveling this mystery scientists had to rely o…
***SHOW ALL WORK FOR POINTS USING MY NUMBERS*** An Erlenmeyer flask from the pre
***SHOW ALL WORK FOR POINTS USING MY NUMBERS*** An Erlenmeyer flask from the previous experiment containing the solution of the iron-oxalate complex after the titration with potas…
***SHOW WORK WITH MY NUMBERS FOR POINTS*** 1. The concentration of a hydrochlori
***SHOW WORK WITH MY NUMBERS FOR POINTS*** 1. The concentration of a hydrochloric acid solution is approximately 0.25 M but the solution must be standardized by titration against …
***SQL** Create your own short and simple JDBC Java code example that creates a
***SQL** Create your own short and simple JDBC Java code example that creates a table with 4 columns in it and then inserts 2 records into that table. The tablename and columns ar…
***SQL** Create your own short and simple JDBC Java code example that creates a
***SQL** Create your own short and simple JDBC Java code example that creates a table with 4 columns in it and then inserts 2 records into that table. The tablename and columns ar…
***SQL** Create your own short and simple JDBC Java code example that creates a
***SQL** Create your own short and simple JDBC Java code example that creates a table with 4 columns in it and then inserts 2 records into that table. The tablename and columns ar…
***StillClock.java***** import java.awt.*; import javax.swing.*; import java.uti
***StillClock.java***** import java.awt.*; import javax.swing.*; import java.util.*; public class StillClock extends JPanel { private int hour; private int minute; private int s…
***THIS IS DONE IN MATLAB*** Download the data file on D2L (HW4_Problem1_Data.xl
***THIS IS DONE IN MATLAB*** Download the data file on D2L (HW4_Problem1_Data.xlsx) (Which I have provided the info above. just a heads up. in the excel sheet. it has more rows th…
***WILL GIVE MORE POINTS FOR CORRECT ANSWER WIT COMMENTS*** Write a program in C
***WILL GIVE MORE POINTS FOR CORRECT ANSWER WIT COMMENTS*** Write a program in C++ for a small theater to use to keep track of which seats have been reserved and which seats are a…
***When a 3.88 gram sample of solid ammonium nitrate dissolves in 60.0 grams of
***When a 3.88 gram sample of solid ammonium nitrate dissolves in 60.0 grams of water in a coffee-cup calorimeter, the temperature drops from 23.0°C to what temperature in °C. Spe…
***the measured pH of vinegar is 2.5*** Part B: Determination of Ka of Acetic Ac
***the measured pH of vinegar is 2.5*** Part B: Determination of Ka of Acetic Acid 3. The concentration of distilled white vinegar is written as 5% (w/v) of acetic acid (CH3COOH).…
**1) How many grams of ice at O o C must be added to100 grams of H2O at 40 o to
**1) How many grams of ice at Oo C must be added to100 grams of H2O at 40oto reduce the temp to25o C. specific heat water: 4.184, ice: 2.08 SHOW ALL WORK : ) 2) First Law of therm…
**A student has 2.0 mM blue#1 dye solution and needs 100.0 mL of 4.2 times 10^-4
**A student has 2.0 mM blue#1 dye solution and needs 100.0 mL of 4.2 times 10^-4 M blue dye #1 solution. How much of the 2.0 mM solution should the student add to the 100.0 mL vol…
**C++ Synopsis: Type in a word and get a point value. In both Words With Friends
**C++ Synopsis: Type in a word and get a point value. In both Words With Friends and the scrabble game, a individual letters in a word are given specific values. For this lab, cal…
**Could not get photo to rotate..** Question is asking to provide an example of
**Could not get photo to rotate..** Question is asking to provide an example of a drug that corresponds to each of the receptor sites. Then an explantion as how that drug can inte…
**Don`t have to answer them all. Anyhelp appreciated! Draw the skeletal structur
**Don`t have to answer them all. Anyhelp appreciated! Draw the skeletal structure of the compound whose structure wouldbe consistent with the following information: (a) molecular …
**FRACTIONAL DISTILLATION LAB** **NOTE: PLEASE IGNORE SIMPLE DISTILLATION AND US
**FRACTIONAL DISTILLATION LAB** **NOTE: PLEASE IGNORE SIMPLE DISTILLATION AND USE *FRACTIONAL DISTILLATION INSTEAD---- ****PLEASE DONT UPLOAD PHOTO FOR ANSWER****, PLEASE ANSWER A…
**Friedel-Craft Acylation Experiment 1. True or False: Both aluminum chloride an
**Friedel-Craft Acylation Experiment 1. True or False: Both aluminum chloride and acetyl chloride shold be weighed in a hood. a. True b. False 2. True or False: The product produc…
**I ONLY NEED HELP WITH 5** 1. Chromium, Cr, has 24 electrons. Write out the ent
**I ONLY NEED HELP WITH 5** 1. Chromium, Cr, has 24 electrons. Write out the entire electron configuration for chromium using spdf notation. 2. How many unpaired electrons would y…
**MUST SOLVE ALL PARTS WITH FULL WORK FOR 5 STARS** A standard solution for Fe 2
**MUST SOLVE ALL PARTS WITH FULL WORK FOR 5 STARS** A standard solution for Fe2+ determination can be prepared from ferrous ammonium sulfate (Fe(NH4)2(SO4)2.6H2O). 1. Calculate th…
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