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Chemistry concepts and calculations

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Why should activated carbon be used during a recrystallization? Under which circ
Why should activated carbon be used during a recrystallization? Under which circumstances is it wise to use a mixture of solvents to carry out a recrystallization? Why is gravity …
Why should care be exercised in handling concentrated acids such as H_2SO_4 and
Why should care be exercised in handling concentrated acids such as H_2SO_4 and HBr? Why do primary alkyl halides typically undergo S_N2 substitution reactions more rapidly than d…
Why should enough solid KHT be added Jo the KCl-NaCl solution to ensure that som
Why should enough solid KHT be added Jo the KCl-NaCl solution to ensure that some solid remains dissolved after the 20-min stirring? Why should you make sure that the beaker, funn…
Why should one not carry out a distillation process at a very rapid rate? If at
Why should one not carry out a distillation process at a very rapid rate? If at a rapid rate, we must decrease the temperature with a rapid rate the pint is likely to be acurate a…
Why should one subtract the optical rotation value of a blank from that of the s
Why should one subtract the optical rotation value of a blank from that of the solution when calculating optical rotation if the blank itself is not chiral? A. All solvents are ch…
Why should one subtract the optical rotation value of a blank from that of the s
Why should one subtract the optical rotation value of a blank from that of the solution when calculating optical rotation if the blank itself is not chiral? A. All solvents are ch…
Why should people get a flu shot every year ? Mr James, an 80 year old man, has
Why should people get a flu shot every year ? Mr James, an 80 year old man, has come into the clinic grumbling this morning about having to receive a flu shot every year. You know…
Why should you only obtain and crush the dry ice just before you are to use it?
Why should you only obtain and crush the dry ice just before you are to use it? 1. Dry ice reacts quickly with weigh boats, glassware, and the bench top and should not sit out for…
Why the answer is c ? can anyone tell me why ? thanks public class Player extend
Why the answer is c ? can anyone tell me why ? thanks public class Player extends Point { private String myName; public Player( Point p. String name ) { super( p ); myName = name;…
Why the graduated cylinder used to collect the glass should be moved so that the
Why the graduated cylinder used to collect the glass should be moved so that the water level within it is at the same level of the water in the bath it is placed before reading th…
Why was HCl used to clean the out the test tube that had the reaction between Ca
Why was HCl used to clean the out the test tube that had the reaction between Ca and H2O
Why was HCl used to clean the out the test tube that had the reaction between Ca
Why was HCl used to clean the out the test tube that had the reaction between Ca and H2O
Why was an excess of acetic acid used in this synthesis? At approximately what t
Why was an excess of acetic acid used in this synthesis? At approximately what temperature was the solution boiling during the reflux period? Explain why it is possible to separat…
Why was anhydrous, not wet, diethyl ether used in the preparation and reaction o
Why was anhydrous, not wet, diethyl ether used in the preparation and reaction of the Grignard reagent? What would have been the products if wet diethyl ether was used instead? 1.…
Why was ethanol used in this procedure? Weigh 1.0 g of sodium hydroxide into a 5
Why was ethanol used in this procedure? Weigh 1.0 g of sodium hydroxide into a 50-mL Erlenmeyer flask, add a magnetic stir bar and f deionized water, and stir the mixture until al…
Why was it necessary for the water to flow in a countercurrent manner in the con
Why was it necessary for the water to flow in a countercurrent manner in the condenser? (have received several answers - but trying to put into my own words - without copying dire…
Why was water used as a part of the solvent system for the oxidation of borneol
Why was water used as a part of the solvent system for the oxidation of borneol to camphor? If the KI starch paper is positive what does that indicate in oxidation of borneol to c…
Why wont my generic quick sort and binary search work? String searchName; String
Why wont my generic quick sort and binary search work? String searchName;        String data;        String input;        int count=0;               Scanner kb = new Scanner(Syste…
Why would it be bad to wash the test-tubes for the S_N2 conditions with water be
Why would it be bad to wash the test-tubes for the S_N2 conditions with water before doing the test? (b) So related to the question above, what should you have used to wash the te…
Why would it be difficult to monitor the hydrolysis of the dimethyl ketal of ace
Why would it be difficult to monitor the hydrolysis of the dimethyl ketal of acetone by TLC? There are two answers. The reaction to hydrolyze the dimethyl acetal of benzaldehyde, …
Why would it be important to place the same amount of a solution in the polarime
Why would it be important to place the same amount of a solution in the polarimeter tube when measuring optical rotation as the amount of solvent when measuring theblank? a. So th…
Why would it be important to place the same amount of a solution in the polarime
Why would it be important to place the same amount of a solution in the polarimeter tube when measuring optical rotation as the amount of solvent when measuring theblank? a. So th…
Why would the United States consider developing an energy intensive technology s
Why would the United States consider developing an energy intensive technology such as desalination? The United States is not looking desalination. It is only an important technol…
Why would the removal of water from the reaction mixture result in an increase c
Why would the removal of water from the reaction mixture result in an increase conversion of benzoic acid to methyl benzoate? Explain briefly please. This question regards the exp…
Why would the removal of water from the reaction mixture result in an increase c
Why would the removal of water from the reaction mixture result in an increase conversion of benzoic acid to methyl benzoate? Explain briefly please. This question regards the exp…
Why would trying to collect the 1H NMR and 31P NMR of the following two compound
Why would trying to collect the 1H NMR and 31P NMR of the following two compounds be futile? Spectra of both show no useful information. I'm leaning towards perhaps an explanation…
Why would we obtain the same equation of state for linear molecules and non-line
Why would we obtain the same equation of state for linear molecules and non-linear molecules ( that is, taking rotations and vibrations into account?
Why would we obtain the same equation of state for linear molecules and non-line
Why would we obtain the same equation of state for linear molecules and non-linear molecules ( that is, taking rotations and vibrations into account?
Why would we obtain the same equation of state for linear molecules and non-line
Why would we obtain the same equation of state for linear molecules and non-linear molecules ( that is, taking rotations and vibrations into account?
Why would we obtain the same equation of state for linear molecules and non-line
Why would we obtain the same equation of state for linear molecules and non-linear molecules ( that is, taking rotations and vibrations into account?
Why would you expect the solubility of most solids to increase as the temperatur
Why would you expect the solubility of most solids to increase as the temperature of the solvent increases? A The solubility of most solids decreases as the temperature of the sol…
Why you are doing this experiment and What you will learn in the process DIRECTI
Why you are doing this experiment and What you will learn in the process DIRECTIONS our instructor may suggest additional tests to carry out on your hydrocarbon Your unknown hydro…
Why? Depending on your source the Intel compiler is likely or most definitely th
Why? Depending on your source the Intel compiler is likely or most definitely the compiler generating the fastest executables for the x86 architecture (5 to 100 % execution time i…
Wibiscms/mod/ibis/view.php?id 2963447 Fall16 COLONNA I Activities and Due Dates
Wibiscms/mod/ibis/view.php?id 2963447 Fall16 COLONNA I Activities and Due Dates I Ch 12 Grade 11/27/2016 10:00 PM 75/100 Print Calculator Periodic Table stion 19 of 32 Map Sapling…
Wibiscms/mod/ibis/view.php?id 3315728 merican CHM 1045 Spring17 PANDO MOREJON I
Wibiscms/mod/ibis/view.php?id 3315728 merican CHM 1045 Spring17 PANDO MOREJON I Activities and Due Dates I HW 1 1/20/201706:00 PM Q 31.3/50 1/16/2017 08:34 PM Print calculator Per…
Wibiscms/modibis/view,p p C M. Eastern Nazarene College x Jump to... ge CH 104 S
Wibiscms/modibis/view,p p C M. Eastern Nazarene College x Jump to... ge CH 104 Spring17- READ SPRAY I Activities and Due Dates I Hw 5 Gr 21/2017 1250 PM 333/oo 1/25/201710:23 PM P…
Wich plot shows a first-order reaction with respect ot reactant A? 3. The reacti
Wich plot shows a first-order reaction with respect ot reactant A? 3. The reaction 2NO rightarrow O_2, has rate constant of 3.6 times 10^2 m^-1 s^-1. When [NO] -2.8times10^-3 M, w…
Wihen osereon starts arevolving doorih motonhich af te folw et \"force couple?\"
Wihen osereon starts arevolving doorih motonhich af te folw et "force couple?" a. the person's force applied to the door off-axis; the point of restraint at the axis of rotation c…
Wikipedia defines side-channel attacks as: any attack based on information gaine
Wikipedia defines side-channel attacks as: any attack based on information gained from the physical implementation of a cryptosystem Usually in side channel attacks the implementa…
Wikipedia says, that closure - is a function, which has an access to variables,
Wikipedia says, that closure - is a function, which has an access to variables, declared outside of the function. There is even an example: function startAt(x)    function increme…
Wikipedia\'s formal definition of NP based on deterministic verifiers states: A
Wikipedia's formal definition of NP based on deterministic verifiers states: A language L is in NP if and only if there exist polynomials p and q, and a deterministic Turing machi…
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Wiley PLUS: MyWlleyPLUS I Help I Contact us persen, Chemistry, 6e General Chemistry New Edition (6th) (Chemistry 139 and Chemistry Gradebook FULL SCREEN PRINTER VERSION BACK NET R…
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