Chemistry concepts and calculations

What aldehyde forms chains from which the sugar ribose is easily formed? A. etha

What aldehyde forms chains from which the sugar ribose is easily formed? A. ethanal B. butanal C. acetaldehyde D. formaldehyde What aldehyde forms chains from which the sugar ribo…

What am I doing wrong in this titration problem? Calculate the ph at the equival

What am I doing wrong in this titration problem? Calculate the ph at the equivalence point for the following titration 0.20M HCl versus 0.20M methylamine (CH3NH2). The Ka of methy…

What am I doing wrong with this code??? #include using namespace std;

What am I doing wrong with this code??? #include <iostream> using namespace std; double getLength(); double getWidth(); double calcArea(double length, double width); double …

What am I doing wrong. I\'m using the equation upsidedown y=hc/e setting that up

What am I doing wrong. I'm using the equation upsidedown y=hc/e setting that up i get y=(6.626x10^-34)(-2.178x10^-18)/(-2.178 x 10^-18 x 1/25) somehow I'm getting the wrong answer…

What am I doing wrong. I\'m using the equation upsidedown y=hc/e setting that up

What am I doing wrong. I'm using the equation upsidedown y=hc/e setting that up i get y=(6.626x10^-34)(-2.178x10^-18)/(-2.178 x 10^-18 x 1/25) somehow I'm getting the wrong answer…

What am I doing wrong? Can somebody please help me? I only have one try left Cla

What am I doing wrong? Can somebody please help me? I only have one try left Classify Each Of The Foll × Lab report instructions- xCourse Home × Write Boarced Net lore X openvellu…

What am I doing wrong? I\'ve been working on this problem almost half a day toda

What am I doing wrong? I've been working on this problem almost half a day today. I've tried -->1s2 2s2 2p6 3s2 3p6 4s0 3d5 -->1s2 2s2 2p6 3s2 3p6 3d6 --->1s2 2s2 2p6 3s2…

What am I doing wrong??? Complete this reaction of a carboxyic acid with strong

What am I doing wrong??? Complete this reaction of a carboxyic acid with strong base. Insert charges where appropriate for this generic ca rboxylic acid salt. O Previous GMe up 8 …

What amount of Al_2O_3 is produced from the reaction of 3.0 mol Al with 2.0 mol

What amount of Al_2O_3 is produced from the reaction of 3.0 mol Al with 2.0 mol Fe_2O_3? 2Al + Fe_2O_3 rightarrow Al_2O_3 + 2Fe 1.5 mol 2.0 mol 3.0 mol 6.0 mol What amount of the …

What amount of energy ?s required to melt a 27.2 g piece of ice at 0degreeC? The

What amount of energy ?s required to melt a 27.2 g piece of ice at 0degreeC? The heat of fusion of ice = 333 Jg^-1 Heat required to melt the ice = What amount of energy must be re…

What amount of energy is required to change a spherical drop of water with a dia

What amount of energy is required to change a spherical drop of water with a diameter of 1.60 mm to two smaller spherical drops of equal size? The surface tension, ?, of water at …

What amount of energy is required to melt a 19.4 g piece of ice at 0 degree C? T

What amount of energy is required to melt a 19.4 g piece of ice at 0 degree C? The heat of fusion of ice = 333 Jg-1 Heat required to melt the ice = J What amount of energy must be…

What amount of energy is required to melt a 19.6 g piece of ice at 0oC? The heat

What amount of energy is required to melt a 19.6 g piece of ice at 0oC? The heat of fusion of ice = 333 Jg-1 1. Heat required to melt the ice = ( ) J What amount of energy must be…

What amount of energy is required to melt a 19.8 g piece of ice at 0 degree C? T

What amount of energy is required to melt a 19.8 g piece of ice at 0 degree C? The heat of fusion of ice = 333 Jg-1 Heat required to melt the ice = J What amount of energy must be…

What amount of energy is required to melt a 23.2 g piece of ice at 0 degree C? T

What amount of energy is required to melt a 23.2 g piece of ice at 0 degree C? The heat of fusion of ice = 333 Jg-1 Heat required to melt the ice = J What amount of energy must be…

What amount of energy is required to melt a 24.9 g piece of ice at 0 o C? The he

What amount of energy is required to melt a 24.9 g piece of ice at 0oC? The heat of fusion of ice = 333 Jg-1 Heat required to melt the ice = J What amount of energy must be remove…

What amount of energy is required to melt a 27.9 g piece of ice at 0oC? The heat

What amount of energy is required to melt a 27.9 g piece of ice at 0oC? The heat of fusion of ice = 333 Jg-1 1. Heat required to melt the ice = ( ? ) J What amount of energy must …

What amount of the excess reagent remains after the reaction is complete? grams

What amount of the excess reagent remains after the reaction is complete?  grams What mass of the excess reagent remains after the reaction is complete?   grams What amount of the…

What answer should be reported, with the correct number of significant figures,

What answer should be reported, with the correct number of significant figures, for the following calculation? (249.362 + 41)/63.498 A) 4.573 B) 4.6 C) 4.57277 D) 4.57 E) 4.5728 W…

What answer should be reported, with the correct number of significant figures,

What answer should be reported, with the correct number of significant figures, for the following calculation? (249.362 +41)/63.498 = 2. In 0.50 mole of methyl formate, HCOOCH_3, …

What are E , q , w and H for the evaporation of 10.3 g of Br 2 ( l ) at 298 K an

What are E, q, w and H for the evaporation of 10.3 g of Br2(l) at 298 K and 1 atm? (See Thermodynamic Properties.) Determine H, q, w, and E at 298 K and 1 atm pressure for the rea…

What are analytics APIs accessing when they run, and how do you block or spoof t

What are analytics APIs accessing when they run, and how do you block or spoof them? Usually all apps from desktop or mobile app stores, MMO clients, Steam and many utilities, and…

What are beta particles? hydrogen nuclei electromagneticradiation electrons heli

What are beta particles?       hydrogen nuclei        electromagneticradiation        electrons        heliumnuclei An alpha particle has        one proton and threeneutrons.     …

What are diastereomere? A stereoismer with nonsuperimposable mirror images A ste

What are diastereomere? A stereoismer with nonsuperimposable mirror images A stereoisomer with chiral centers which does not have optical activity due to a plane of symmetry but i…

What are each of the following observations an example of? Drag the appropriate

What are each of the following observations an example of? Drag the appropriate items to their respective bins. There is a gas leak in the kitchen and you smell gas in the bedroom…

What are efficient and accurate techniques for monitoring the recoverability and

What are efficient and accurate techniques for monitoring the recoverability and integrity of files in very large preservation archives? In very large archives, the time taken to …

What are leading solutions today for sharing on the Internet, via a web interfac

What are leading solutions today for sharing on the Internet, via a web interface, photos and/or videos (streaming) and other resources from a home server? Prefer minimum firewall…

What are minimum values for q_nuc and q_rot for a gas-phase molecule? What about

What are minimum values for q_nuc and q_rot for a gas-phase molecule? What about g_vib? The moment of inertia for F_2 is 3.167 times 10^-46 kg m^2. What is the value of the rotati…

What are minimum values for q_nuc and q_rot for a gas-phase molecule? What about

What are minimum values for q_nuc and q_rot for a gas-phase molecule? What about q_vib? The moment of inertia for F_2 is 3.167 Times 10^-46 g middot m^2. What is the value of the …

What are possible units for the reaction rate? A. L middot mol^-1 middot s^-1 B.

What are possible units for the reaction rate? A. L middot mol^-1 middot s^-1 B. L^2 middot mol^-2 middot s^-1 C. s^-1 D. s^-2 E. mol middot L^-1 middot s^-1 2. Rate constant for …

What are quantum dots (QDs)? As a very rough approximation, an electron in a qua

What are quantum dots (QDs)? As a very rough approximation, an electron in a quantum dot can be thought of as an electron in a 3D box. By analogy to the 2D box, write down an expr…

What are signs of strong intermolecular forces of attraction in a liquid High va

What are signs of strong intermolecular forces of attraction in a liquid High vapor pressure Low vapor pressure High molar heat of evaporation Low molar heat of fusion Low surface…

What are some advantages and disadvantages of perborate and chlorine bleaches? M

What are some advantages and disadvantages of perborate and chlorine bleaches? Match the words in the left column to the appropriate blanks in the sentences on the right. Chlorine…

What are some common mistakes/pitfalls, specific to Silverlight development, tha

What are some common mistakes/pitfalls, specific to Silverlight development, that developers should avoid? PS: Please, if you don't have hands on experience with Silverlight and w…

What are some examples of good class structures used to manage database access?

What are some examples of good class structures used to manage database access? I am a fan of class encapsulation and would prefer the containers (e.g. car) not to perform databas…

What are some methods done by latent fingerprints? What are some advantages and

What are some methods done by latent fingerprints? What are some advantages and disadvantages to latent fingerprints?

What are some methods done by latent fingerprints? What are some advantages and

What are some methods done by latent fingerprints? What are some advantages and disadvantages to latent fingerprints?

What are some non-human sources of error for a two part lab studying substitutio

What are some non-human sources of error for a two part lab studying substitution reactions? (3-5) The first part was the synthesis of t-butyl chloride from t-butanol and hydrochl…

What are some of the benefits of providing text links in addition to graphical l

What are some of the benefits of providing text links in addition to graphical links? How can we improve on existing websites? What are the steps to find the source code? What is …

What are some of the elements involved in creating visual illusions? What role d

   What are some of the elements involved in creating visual illusions? What role does culture play? -      According Sigmund Freud’s unconscious wish fulfillment theory, dreams r…

What are some of the key characteristics of unknown sample of an aqueous solutio

What are some of the key characteristics of unknown sample of an aqueous solution containing an ionic compound? 1. Given that the cation is from Group 1A, what is the identity of …

What are some of the key characteristics of unknown sample of an aqueous solutio

What are some of the key characteristics of unknown sample of an aqueous solution containing an ionic compound? Specific questions: 1. Given that the cation is from Group 1A, what…

What are some of the key characteristics of unknown sample of an aqueous solutio

What are some of the key characteristics of unknown sample of an aqueous solution containing an ionic compound? Specific questions: 1. Given that the cation is from Group 1A, what…

What are some of the molecules that are in this gasoline sample. Use rentention

What are some of the molecules that are in this gasoline sample. Use rentention time and peak shape to guide you. Two or more will suffice... 1.067 59860 1.267 1 592 407712 2148 2…

What are some of the physical media that Ethernet can run over? What are the sev

What are some of the physical media that Ethernet can run over? What are the seven layers in the Internet protocol stack? What are the principle responsibilities for each of these…

What are some of the uses of Co-phen compounds and their derivatives? How do the

What are some of the uses of Co-phen compounds and their derivatives? How do the spectra of the phenanthroline ligand compare with the product, and how do these numbers correlate …

What are some recommendations for a build tool that would allow me to upload cha

What are some recommendations for a build tool that would allow me to upload changes to a web server or a repository and minify the js and css automatically, and possibly even run…

What are some sources of errors that are associated with standardizing a solutio

What are some sources of errors that are associated with standardizing a solution/titration, how can these errors be prevented?

What are some theoretical problem involved in Sn2 reactions? What is the possibl

What are some theoretical problem involved in Sn2 reactions? What is the possible practical application of synthesized L phenyllactic acid? What are the functional groups present …

What are substances that take electrons from other substancescalled? reducing ag

What are substances that take electrons from other substancescalled?       reducing agents        oxidizingagents        redoxagents        hydrocarbons A curie is a measure of   …