Chemistry concepts and calculations

1. Suppose that a window size in Selective and Repeat is 4, what is the minimum

1. Suppose that a window size in Selective and Repeat is 4, what is the minimum size of sequence number in bits required to have no problems at receiver. 1 2 3 4 2. Which of the f…

1. Suppose that foo is a new class and you want to declare an array of 10 foo ob

1. Suppose that foo is a new class and you want to declare an array of 10 foo objects. Which constructor will be used to initialize the 10 foo components of the array? A. Only the…

1. Suppose that for the preparation of the stock solution of borax, the solid bo

1. Suppose that for the preparation of the stock solution of borax, the solid borax reagent is contaminated with a water-soluble substance that does not react with hydrocholoric a…

1. Suppose that silicon could form molecules that are precisely the analogs of e

1. Suppose that silicon could form molecules that are precisely the analogs of ethane, ethylene, and acetylene. How would you describe the bonding about Si in terms of hybrid orbi…

1. Suppose that sodium hydroxide and silver nitrate react in an aqueous solution

1. Suppose that sodium hydroxide and silver nitrate react in an aqueous solution. (a). Write the total ionic equation for this reaction. (b). Identify the spectator ions in this r…

1. Suppose that substances A2, B2, and C2 are all oxidizing agents. You are give

1. Suppose that substances A2, B2, and C2 are all oxidizing agents. You are given the following facts: (In solution: A2 is green, B2 is yellow, C2 is red)... The three substances …

1. Suppose that there are two components A and B, in a mixture. The chemical aff

1. Suppose that there are two components A and B, in a mixture. The chemical affinity of A for the stationary phase is less than that of B and the chemical affinity of A for the m…

1. Suppose that you are given the following partial data segment, which starts a

1. Suppose that you are given the following partial data segment, which starts at address 0x0700 : .data idArray DWORD 1800, 1719, 1638, 1557, 1476, 1395, 1314, 1233, 1152, 1071, …

1. Suppose that you have 0.500 L of each of the following solutions, and an unli

1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br? and C9H7N is q…

1. Suppose that you have 0.500 L of each of the following solutions, and an unli

1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br? and C9H7N is q…

1. Suppose that you have 0.500 L of each of the following solutions, and an unli

1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br? and C9H7N is q…

1. Suppose that you have 0.500 L of each of the following solutions, and an unli

1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br? and C9H7N is q…

1. Suppose that you have 0.500 L of each of the following solutions, and an unli

1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br? and C9H7N is q…

1. Suppose that you have 0.500 L of each of the following solutions, and an unli

1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br? and C9H7N is q…

1. Suppose the following operations are performed on an empty static stack which

1. Suppose the following operations are performed on an empty static stack which has four spaces to store data. There is the order: push(45) - > push(23) - > pop(x) - > p…

1. Suppose we are given an array of integers, but instead of all integers having

1. Suppose we are given an array of integers, but instead of all integers having the same length they can each have a different number of bits. So e.g. the number 0 or 1 takes one…

1. Suppose we fill a sealed flask with 0.250 mol of gas A, which then completely

1. Suppose we fill a sealed flask with 0.250 mol of gas A, which then completely reacts to form a second gas, B, according to the reaction: A 2B. At various times during the react…

1. Suppose you are given an unknown aqueous solution that contained one of the f

1. Suppose you are given an unknown aqueous solution that contained one of the following cations: Ag^+, Ba^+2, or Na^+ ions. You have available the following test solutions: 1 M s…

1. Suppose you are given an unknown aqueous solution that contained one of the f

1. Suppose you are given an unknown aqueous solution that contained one of the following cations: Ag+, Ba2+, or Na+ ions. You have available the following test solutions: 1 M sulf…

1. Suppose you are titrating a dilute acetic acid solution in a flask with NaOH

1. Suppose you are titrating a dilute acetic acid solution in a flask with NaOH in the buret. Acetic acid is a weak acid that has the formula CH3COOH and the following structure: …

1. Suppose you did not line up the buret tip with the eye of the drop counter an

1. Suppose you did not line up the buret tip with the eye of the drop counter and missed several drops of the base. What effect will this have on the value of the pKa? Explain. 2.…

1. Suppose you dissolve a compound in too much solven in a recrystallization. Ho

1. Suppose you dissolve a compound in too much solven in a recrystallization. How would you find out that you had used too much solvent? Given that too much solvent has been used,…

1. Suppose you do a GC analysis on a sample consisting of 15% A, 60% B, and 25%

1. Suppose you do a GC analysis on a sample consisting of 15% A, 60% B, and 25% C by weight. A and B are volatile compounds that elute from the GC column while C is nonvolatile an…

1. Suppose you had 10 identical molecules enclosed by a box. At a given instant,

1. Suppose you had 10 identical molecules enclosed by a box. At a given instant, one molecule has an energy of 100 Joules, and the others are all stationary. (A) What is the avera…

1. Suppose you had a buffer containing 0.5 moles of sodium monobasic phosphate a

1. Suppose you had a buffer containing 0.5 moles of sodium monobasic phosphate and 0.5 moles of sodium dibasic phosphate. How many moles of hydrochloric acid would this phosphate …

1. Suppose you have a sample of sodium weighing 11.43 g. How many atoms of sodiu

1. Suppose you have a sample of sodium weighing 11.43 g. How many atoms of sodium are present in the sample? _____atoms 2. What mass of potassium would you need to have the same n…

1. Suppose you have an aqueous solution which is a mixture of barium and calcium

1. Suppose you have an aqueous solution which is a mixture of barium and calcium cations. What reagent would you add to separate these two ions, and what happens when this reagent…

1. Suppose you have an array of seven int values called test containing the foll

1. Suppose you have an array of seven int values called test containing the following data: Trace the execution of the following code: int x = 0; int y = 0; for (int i = 0; i <…

1. Suppose you prepared a sodium hydroxide solution in the lab using exactly 45.

1.       Suppose you prepared a sodium hydroxide solution in the lab using exactly 45.1323g sodium hydroxide pellets.  And, the volume of the solution was measured accurately usin…

1. Suppose you use a coffee cup calorimeter to measure the heat released in the

1. Suppose you use a coffee cup calorimeter to measure the heat released in the neutralization reaction between sodium hydroxide and hydrochloric acid. Given the data in the table…

1. Suppose you were given one gold Adam every second since the big bang occurred

1. Suppose you were given one gold Adam every second since the big bang occurred about 14 billion (1.4x10^10) years ago how many moles of gold atoms would you have? A. 7.3x10^-7 B…

1. TCO 1 - When choosing the DBA authentication method, you can choose between _

1. TCO 1 - When choosing the DBA authentication method, you can choose between ____ and password file authentication. (Points : 3)        encrypted        hashed        shadow    …

1. TCO 3 - In the DBMS_PIPE package, the ____ must be used to start a private pi

1. TCO 3 - In the DBMS_PIPE package, the ____ must be used to start a private pipe. (Points : 1)        CREATE_PIPE        SEND_MESSAGE        PURGE        PACK_MESSAGE Question 2…

1. TCO 3 - The ____ tablespace contains Oracle optional software metadata and da

1. TCO 3 - The ____ tablespace contains Oracle optional software metadata and data. (Points : 2)        UNDO        USERS        SYSTEM        SYSAUX Question 2.2. TCO 3 - There a…

1. TCO 4 - Which of the following code fragments correctly uses a record variabl

1. TCO 4 - Which of the following code fragments correctly uses a record variable to hold the row of data queried for a shopper? (Points : 4)        DECLARE rec_shopper bb_shopper…

1. TCO 5 - A(n) ____ is a single task sent to the database, such as parsing a ne

1. TCO 5 - A(n) ____ is a single task sent to the database, such as parsing a new SQL statement or executing a query. (Points : 3)        call        command        execution     …

1. TCO 8 - Client-side extensions are available in various forms, such as ____.

1. TCO 8 - Client-side extensions are available in various forms, such as ____. (Points : 1)        COBOL        Java and JavaScript        Visual Basic .NET        Visor.Net Ques…

1. Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.50-

1. Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.50-g sample is burned, and 2.40 g of CO2(g) is produced. What was the mass percentage of the table sal…

1. Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.50-

1. Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.50-g sample is burned, and 2.40 g of CO2(g) is produced. What was the mass percentage of the table sal…

1. Take a look at an analogous process that is performed continuously to produce

1.Take a look at an analogous process that is performed continuously to produce large quantities of the crystalline product. The figure below depicts a continuous crystallization …

1. Tco 1) which of the following statements about hydrogen bonds is FALSE? (Poin

1. Tco 1) which of the following statements about hydrogen bonds is FALSE? (Points 4) O Hydrogen bonds create molecules. drogen bonds make biological molecules more stable. Hydrog…

1. Ten grams of N 2 is mixed with 5g of O 2 and held at 25 o C and 0.75 bar. a)

1. Ten grams of N2 is mixed with 5g of O2 and held at 25 oC and 0.75 bar. a) What are the partial pressures of N2 and O2? b) What is the volume of the ideal mixture? 2. Calculate …

1. The 10 mL graduated cylinder is marked to tenths of mL. How many decimal plac

1. The 10 mL graduated cylinder is marked to tenths of mL. How many decimal places should you record? Hint you want to estimate one digit beyond the markings. 2. Would you expect …

1. The Balmer lines are from a. The transition of hydrogen atoms into the lowest

1. The Balmer lines are from a. The transition of hydrogen atoms into the lowest energy level b. The transition of hydrogen atoms into the n=2 level. c. The transition of helium a…

1. The Biuret test is used to test for the presence of an amino acid. a. True b.

1. The Biuret test is used to test for the presence of an amino acid. a. True b. False 2. The Biuret test is used to test for the presence of an amino acid. a. -1 b. 0 c. +1 3. Wh…

1. The C++ Stack Class The sample code has a C++ program that contains a Stack s

1. The C++ Stack Class The sample code has a C++ program that contains a Stack structure (called CPPStack) that holds items of ItemType, currently defined to be chars, and a progr…

1. The C++ Stack Class [ Code at the end ] 2. The Position Class Create a class

1. The C++ Stack Class [ Code at the end ] 2. The Position Class Create a class called Position. A Position object represents a row and a column position on a two dimensional 10 x…

1. The Cu2+ ions in this experiment are produced by the reaction of 1.0g of copp

1. The Cu2+ ions in this experiment are produced by the reaction of 1.0g of copper turnings with excess nitric acid. How many moles of Cu2+ are produced? 2. Why isn't hydrochloric…

1. The Cu2+ ions in this experiment are produced by the reaction of 1.0g of copp

1. The Cu2+ ions in this experiment are produced by the reaction of 1.0g of copper turnings with excess nitric acid. How many moles of Cu2+ are produced? 2. Why isn't hydrochloric…

1. The E2 reaction is useful for a. The preparation of alkyl halides b. The prep

1. The E2 reaction is useful for a. The preparation of alkyl halides b. The preparation of alkenes c. Substitution reactions d. Addition reactions 2. The very bulky (CH3)3O- anion…