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Chemistry concepts and calculations

117302 questions • Page 116 / 2347

1. Copper (II) sulphate pentahydrate, CuSO4*5H2O, has 5 moles of water for each
1. Copper (II) sulphate pentahydrate, CuSO4*5H2O, has 5 moles of water for each mole of CuSO4 in the solid crystal. The molar mass for the pentahydrate is 249.68 g/mol. Copper (II…
1. Copper is often added to paint for ocean-going ships and boats to discourage
1. Copper is often added to paint for ocean-going ships and boats to discourage the growth of marine organisms on their hulls. Unfortunately, the copper dissolves into the water a…
1. Copper makes beautifully colored compounds and polyatomic ions. Answer the qu
1. Copper makes beautifully colored compounds and polyatomic ions. Answer the questions based on the following equations:                         Cu(OH2)62+(aq)   +   4Br(aq) CuBr…
1. Copper(I) oxide is converted to copper(II) oxide according to the following e
1. Copper(I) oxide is converted to copper(II) oxide according to the following equation: Cu2O(s) + ½O2(g) 2 CuO(s) with H° = -146 kJ. Given that Hf° for Cu2O(s) = -168.6 kJ/mol, w…
1. Copper(II)Sulfate + Iron(III)Nitrate 2. Copper(II)Sulfate + Magnesium Chlorid
1. Copper(II)Sulfate + Iron(III)Nitrate 2. Copper(II)Sulfate + Magnesium Chloride 3. Copper(II)Sulfate + Zinc Nitrate 4. Copper(II)Sulfate + Ammonia 5. Copper(II)Sulfate + Sodium …
1. Could 1-pentanol and 2-pentanol be converted to a bromide merely by shaking i
1. Could 1-pentanol and 2-pentanol be converted to a bromide merely by shaking it with concentrated HBr. 2. How would you expect the results of the alkoxide-promoted eliminations …
1. Could fusing two stable nuclei that have mass numbers in the vicinity of 100
1. Could fusing two stable nuclei that have mass numbers in the vicinity of 100 be an energy-releasing process? (yes or no) 2. What is meant by enriched uranium? a. Enriched urani…
1. Count the total number of valence electrons present. Remember number that an
1. Count the total number of valence electrons present. Remember number that an element's group (1-8) gives the number of valence electrons it contributes to the total number. For…
1. Create a Eclipse project named [your pitt id]_MenuManager 2. Create a package
1. Create a Eclipse project named [your pitt id]_MenuManager 2. Create a package edu.pitt.is17.[your pitt id].menumanager 3. Implement the following classes as represented in the …
1. Create a Eclipse project named [your pitt id]_MenuManager 2. Create a package
1. Create a Eclipse project named [your pitt id]_MenuManager 2. Create a package edu.pitt.is17.[your pitt id].menumanager 3. Implement the following classes as represented in the …
1. Create a class called \"Number\" that takes a single template type and stores
1. Create a class called "Number" that takes a single template type and stores an instance of that type as a protected variable. The class should have member functions to get and …
1. Create a class called \"Number\" that takes a single template type and stores
1. Create a class called "Number" that takes a single template type and stores an instance of that type as a protected variable. The class should have member functions to get and …
1. Create a class named Clock. You should use your IDE for this exercise. The cl
1. Create a class named Clock. You should use your IDE for this exercise. The class contains private data fields for startTime and stopTime, a no argument constructor that initial…
1. Create a class named GlobalWarming . In that class, define the following inst
1. Create a class named GlobalWarming. In that class, define the following instance variables and methods:] Instance Variables name: A String that is the name of the person taking…
1. Create a new table that will be used to track employee location. The attribut
1. Create a new table that will be used to track employee location. The attributes associated with the table: employee id, location id, location description, street address, city,…
1. Create a program to test for a palindromes. a. Must take command line argumen
1. Create a program to test for a palindromes. a. Must take command line arguments. b. cannot use string.h c. Sample output Is a Palindrome or Is Not a Palindrome 2. Create a that…
1. Create a web page named BirdGroup.html. This page should contain links to the
1. Create a web page named BirdGroup.html. This page should contain links to the other pages to manage this table. This page creates a basic image mouseover effect. a. Create a hy…
1. Create a webpage that contains a table with five columns and four rows. 2. Th
1.     Create a webpage that contains a table with five columns and four rows. 2.     The first row will contain a heading that spans across all columns. This heading asks the use…
1. Create and invoke a function that returns a value. Show an example of how thi
1. Create and invoke a function that returns a value. Show an example of how this is done. 2. Create and invoke a function that does not return a value. This called a void functio…
1. Create the following .java classes: Hospital, Person, Patient, Doctor 2. Hosp
1. Create the following .java classes: Hospital, Person, Patient, Doctor 2. Hospital.java will contain your main class. It should contain objects of the other three classes(Person…
1. Create the table MEMBER with the specifications listed below: Column Name MEM
1. Create the table MEMBER with the specifications listed below: Column Name MEMBER _ID LAST_ NAME FIRST_ NAME ADDRESS CITY PHONE JOIN_ DATE Data Type NUMBER VARCHAR2 VARCHAR2 VAR…
1. Create x empty files in a given directory (x is a number), following a naming
1. Create x empty files in a given directory (x is a number), following a naming format like this: myfile1, myfile2, etc. Ask the user to enter the first part file name and the nu…
1. Cubic closest-packing Select one: a. has the same unit cell as hexagonal clos
1. Cubic closest-packing Select one: a. has the same unit cell as hexagonal closest-packing. b. has a face-centered cubic unit cell. c. has a simple cubic unit cell. d. has a body…
1. Cups made of different materials are sitting on the kitchen counter. Each is
1. Cups made of different materials are sitting on the kitchen counter. Each is filled with hot coffee having the same temperature. Which type of cup will cool the quickest? glass…
1. Cyclohexyne has been proposed as a reactive intermediate in some organic reac
1. Cyclohexyne has been proposed as a reactive intermediate in some organic reactions, but it is not a stable compound that can be isolated and stored. Provide a brief explanation…
1. Data Analysis: The cells in sections AI, AII, and AIlI were measured at non-s
1. Data Analysis: The cells in sections AI, AII, and AIlI were measured at non-standard state (0.1 M). Without using your measured potentials, calculate the EMF of these cells at …
1. Data Collection (2 points) Observed Melting Point Rangel\"C) Begins to liquef
1. Data Collection (2 points) Observed Melting Point Rangel"C) Begins to liquefy Completely liquefied (use any reference material) Literature Melting Point ( Compound Acetanilide …
1. De Broglie\'s insight into wave-particle duality of matter led to... I. the u
1. De Broglie's insight into wave-particle duality of matter led to... I. the understanding that the wave like properties of small particles like electrons are important. II. the …
1. Define (include citation). a supersaturated solution: b. saturated solution:
1. Define (include citation). a supersaturated solution: b. saturated solution: c. unsaturated solution: 2. How is a supersaturated solution prepared? 3. In this lab, how are goin…
1. Define a C++ class in a file person.h with the following declarations: #inclu
1. Define a C++ class in a file person.h with the following declarations: #include <string> #include <iomanip> #include <iostream> using namespace std; class per…
1. Define and describe what technologies are currently in use for Wifi on airpla
1. Define and describe what technologies are currently in use for Wifi on airplanes. There are currently two methods in use. Describe how each accomplish the same task using diffe…
1. Define and discuss the following: sociological perspective, science and the s
1. Define and discuss the following: sociological perspective, science and the scientific method. compare and contrast science with other means of obtaining information. Is sociol…
1. Define fusion and give an example of a fusion process that may be used to pow
1. Define fusion and give an example of a fusion process that may be used to power reactors in the future. 2. Describe methods that have been proposed to dispose of excess plutoni…
1. Define reduction and give an example of reduction. 2. Define oxidation and gi
1. Define reduction and give an example of reduction. 2. Define oxidation and give an example of oxidation. 3. In the following reaction, Mg)HCleMg )+2 CrHag), which is the reduci…
1. Define simple and fractional distillations. 2. Describe the similarities and
1. Define simple and fractional distillations. 2. Describe the similarities and the differences between simple and fractional distillations 4. In your own words describe the theor…
1. Define the difference between brewing and wine making. 2. Name the number of
1. Define the difference between brewing and wine making. 2. Name the number of carbons in the ring of a starch structure. 3. Identify the sugar repeat unit in a polymer structure…
1. Define the following terms, in your own words, as they relate to this experim
1. Define the following terms, in your own words, as they relate to this experiment a. volatile b. evaporation c. condensation 2. Why should this experiment be carried out in a we…
1. Define the term viscosity . (3 pts) 2. Which jam was the least viscous? (1 pt
1. Define the term viscosity. (3 pts) 2. Which jam was the least viscous? (1 pt) Why? (2 pts) 3. A balance of what 3 ingredients are necessary to form a pectin gel? (3 pts) 4. Why…
1. Define the term viscosity . (3 pts) 2. Which jam was the least viscous? (1 pt
1. Define the term viscosity. (3 pts) 2. Which jam was the least viscous? (1 pt) Why? (2 pts) 3. A balance of what 3 ingredients are necessary to form a pectin gel? (3 pts) 4. Why…
1. Define: a. chromophore cyanobacterium, Spirulina, contains the chromoprotein,
1. Define: a. chromophore cyanobacterium, Spirulina, contains the chromoprotein, phycocyanin. What is the name given to the chromophore in phycocyanin? 3. a. In the chromoprotein,…
1. Derive the LMTD equation for a parallel flow heat exchanger? 2. Derive the LM
1. Derive the LMTD equation for a parallel flow heat exchanger? 2. Derive the LMTD equation for a counter flow heat exchanger? 3. Steam enters a counter flow heat exchanger dry sa…
1. Describe Benedict’s test, explain its basis and why it can/has been used to t
1. Describe Benedict’s test, explain its basis and why it can/has been used to test for the presence of sugars as well as to monitor diabetes control. What are the disadvantages o…
1. Describe and give examples of isotope. 2. How can material modulus of elastic
1. Describe and give examples of isotope. 2. How can material modulus of elasticity be determined from stress-strain data? Explain 3. Calculate the elongation of a 1.0 in3 steel A…
1. Describe four types of intermolecular interactions; sketch attractions betwee
1. Describe four types of intermolecular interactions; sketch attractions between molecules (somehow communicate what the attraction is). Which of these is the strongest? Which is…
1. Describe how an ion selective electrode works. Provide the Nernst equation to
1. Describe how an ion selective electrode works. Provide the Nernst equation to show the relationship between Ecell and Concertation of K for the K ion selective electrode shown …
1. Describe how you could find the % by mass of water in the hydrate CuSO4*5H2O
1. Describe how you could find the % by mass of water in the hydrate CuSO4*5H2O assuming that you did not already know the formula. Be specific and list the laboratory procedural …
1. Describe how you determined the pK a for the plots involving a weak acid or b
1. Describe how you determined the pKafor the plots involving a weak acid or base. 2. Why is the pH at the equivalence point different when a strong acid is titrated by strong bas…
1. Describe how you would make 400.0 mL of a 0.0500M solution of NaOH from pure
1. Describe how you would make 400.0 mL of a 0.0500M solution of NaOH from pure NaOH crystals. Show the calculations needed, and describe how you would make the solution. 2. Calcu…
1. Describe how you would prepare 50 mL of a solution containing 0.15 M malonic
1. Describe how you would prepare 50 mL of a solution containing 0.15 M malonic acid [CH2(COOH)2] plus 0.02 M manganese sulfate [MnSO4]. 2. Describe how you would prepare 100ml of…
1. Describe how you would prepare each of the following aqueous solutions. a. 1.
1. Describe how you would prepare each of the following aqueous solutions.      a. 1.30 L of 0.130 M (NH4)2SO4 solution, starting with solid (NH4)2SO4.   Enter your answers numeri…