Chemistry concepts and calculations

What can be said about the stoichiometric coefficients of a balanced chemical re

What can be said about the stoichiometric coefficients of a balanced chemical reaction AND the powers to which the concentrations are raised in the rate-law expression? Question 4…

What can be said about the stoichiometric coefficients of a balanced chemical re

What can be said about the stoichiometric coefficients of a balanced chemical reaction AND the powers to which the concentrations are raised in the rate-law expression? Question 4…

What can be said with certainty if an alcohol has a specific rotation of + 6.07?

What can be said with certainty if an alcohol has a specific rotation of + 6.07? (A) It is Levorotatory (B) It is dextrorotatory (C) It is optically active (D) It has (R) configur…

What can do you if someone tries to add one more shopper to a full list? Include

What can do you if someone tries to add one more shopper to a full list? Include code in addShopper to handle this. You should also have a way to change the value of canAdd when t…

What can you any about an unknown solid compound that had a melting of 121-12- C

What can you any about an unknown solid compound that had a melting of 121-12- C? Calculate the empirical structure of an unknown compound with the following elemental composition…

What can you deduce about the activation energy of a reaction that takes billion

What can you deduce about the activation energy of a reaction that takes billions of years to go to completion? How about a reaction that takes only fractions of a second? The slo…

What can you do if you do not know which layer is which in an extraction procedu

What can you do if you do not know which layer is which in an extraction procedure? Consider the following compounds. If mixed together, how would you separate them based on the d…

What can you predict about the solubility of other compounds based on the trends

What can you predict about the solubility of other compounds based on the trends observed above? Make observations of all the possible cation/anion combinations, remembering that …

What can you predict about the solubility of other compounds based on the trends

What can you predict about the solubility of other compounds based on the trends observed above? Make observations of all the possible cation/anion combinations, remembering that …

What carbohydrate(s) would have the following test results? Produces a reddish-o

What carbohydrate(s) would have the following test results? Produces a reddish-orange solid with Benedict's and a red color with seliwanoff's reagent in I minute Gives a color cha…

What cascade(s) is/are unique to apoptosis that is/are not otherwise found in HE

What cascade(s) is/are unique to apoptosis that is/are not otherwise found in HER1-dependent cell proliferation? E. (b) & (c) Tarceva (aka Erlotinib) inhibits the binding of G…

What cation will be in solution when each of the following compounds are dissolv

What cation will be in solution when each of the following compounds are dissolved in water? a) Ca(NO_3)_2 b) CuSO_4 c) FeSO_4 d) Fe(NO_3)_3 e) Mg(NO_3)_2 f) SnCl_4 g) Zn(NO_3)_2 …

What causes certain elements to be pulled into a region of stronger magnetic fie

What causes certain elements to be pulled into a region of stronger magnetic field? 1. The element must be ferromagnetic. 2. Atoms of these elements must contain electrons with th…

What causes certain elements to be pulled into a region of stronger magnetic fie

What causes certain elements to be pulled into a region of stronger magnetic field? 1. The element must be ferromagnetic. 2. Atoms of these elements must contain electrons with th…

What causes hardness in water? Explain how hard water can be softened using the

What causes hardness in water? Explain how hard water can be softened using the lime and soda ash technique in a split treatment mode? The practical limits of hardness removal is …

What causes the difference in melting/boiling points between these five sets of

What causes the difference in melting/boiling points between these five sets of compounds? Explain in detail please Match each pair of compounds on the left and its corresponding …

What change or changes in the state of a gas could bring abouteach of the follow

What change or changes in the state of a gas could bring abouteach of the following effects? a. The number of impacts per unit time on a givencontainer wall increases. b. The aver…

What change will be caused by addition of a small amount of HC1 to a solution co

What change will be caused by addition of a small amount of HC1 to a solution containing fluoride ions and hydrogen fluoride? The concentration of hydroxide ions will increase sig…

What change will be caused by addition of a small amount of HCl to a solution co

What change will be caused by addition of a small amount of HCl to a solution containing fluoride ions and hydrogen fluoride? how do you figure this out A) The concentration of hy…

What change will be caused by addition of a small amount of KOH to a solution co

What change will be caused by addition of a small amount of KOH to a solution containing fluoride ions and hydrogen fluoride? A) The concentration of hydronium ions will increase …

What change would you expect on the rate of the SN2 reaction of 1-iodo-2-methylb

What change would you expect on the rate of the SN2 reaction of 1-iodo-2-methylbutane with cyanide ion if the nucleophile concentration is halved and the alkyl halide concentratio…

What changes are observed when HCl solution is added to the saturated NH_4Cl sol

What changes are observed when HCl solution is added to the saturated NH_4Cl solution? Explain how the addition of HCl solution disturbed the equilibrium, which direction the syst…

What characteristics distinguish a strong acid from a weak acid? Part 1: In aque

What characteristics distinguish a strong acid from a weak acid? Part 1: In aqueous solutions strong acids _____ . A. form dilute solutions B. ionize essentially 100% C. ionize 10…

What chemical reaction is happening in this lab \"GRAVIMETRIC DETERMINATION OF C

What chemical reaction is happening in this lab "GRAVIMETRIC DETERMINATION OF CALCIUM AS OXALATE"? what are the chemical reactions??? What are the steps for finding the molarity o…

What code would you use to declare a variable that can store the a circuit? Writ

What code would you use to declare a variable that can store the a circuit? Write the code to declare a variable to hold the rpm speed of motor 1. Write the code to declare a vari…

What coefficients are needed to balance the equation for the complete combustion

What coefficients are needed to balance the equation for the complete combustion of methane? Enter the coefficients in the order CH_4, O_2, cO_2 and H_3 O, respectively. Express y…

What coenzyme is associated with each of the following kinds of reactions? Decar

What coenzyme is associated with each of the following kinds of reactions? Decarboxylation of an alpha-keto acid S-adenosylmethionine ATP biotin FAD NAD + (NADP+) NADH (NADPH) oxa…

What color change do you observe after adding Na·EDTA solution to (17) A solutio

What color change do you observe after adding Na·EDTA solution to (17) A solution to Well 8-2 (18) What is the initial color and appearance of the mixtures in Wells B-3 and B-4? I…

What color did you observe after you mixed the filtrate with hexane? What else i

What color did you observe after you mixed the filtrate with hexane? What else in this experiment did you observe the same color? Explain how these two reactions are related and w…

What color is phenolphthalein in basic solution? _____ 0.1 moles of aluminum hyd

What color is phenolphthalein in basic solution? _____ 0.1 moles of aluminum hydroxide, AI(OH)_3, will neutralize _____ moles of H^+. How many moles of H^+ will 1 g of CaCO_3 neut…

What color light would you expect to have a wavelength of 550 nm? If the complex

What color light would you expect to have a wavelength of 550 nm? If the complex AlQ is colored red, is that consistent with our claim that it absorbs light most strongly at a wav…

What color range and at what pH levels will you observe with bromothymol blue in

What color range and at what pH levels will you observe with bromothymol blue indicator? Approximately what wavelength will the acid form of the indicator maximally absorb? Explai…

What colour changes are expected in the organic layer when a solution containing

What colour changes are expected in the organic layer when a solution containing each of [Fe(ox)]3]^3- and [fe(h20)6]^3+ is mixed with potassium iodide solution? Note a pale viole…

What commonly results when DNA is damaged by ultraviolet light? cysteine dimers

What commonly results when DNA is damaged by ultraviolet light? cysteine dimers thymine dimers the conversion of purine bases to pyrimidine bases the conversion of pyrimidine base…

What compound would provide the product shown in the following reaction? Which o

What compound would provide the product shown in the following reaction? Which of the sequences below would you expect to accomplish the following conversion? 21. What compound wo…

What concentration of ammonia, [NH_3], should be present with [NH^+_4] = 0.732 M

What concentration of ammonia, [NH_3], should be present with [NH^+_4] = 0.732 M to produce a buffer solution with pH = 9.12? For NH_3, K_b = 1.8 times 10^-5 A solution of volume …

What concentration of ammonia,[NH3],should be present in a solution with [NH4+]=

What concentration of ammonia,[NH3],should be present in a solution with [NH4+]= 0.732 M to produce a buffer solution with pH=9.12? For NH3 Kb= 1.8Timesl0-5 A buffer solution of v…

What concentration of ammonia,[NH3],should be present in a solution with [NH4+]=

What concentration of ammonia,[NH3],should be present in a solution with [NH4+]= 0.732 M to produce a buffer solution with pH=9.12? For NH3 Kb= 1.8Timesl0-5 A buffer solution of v…

What concentrations of acetic acid (pK_a = 4.76) and acetate would be required t

What concentrations of acetic acid (pK_a = 4.76) and acetate would be required to prepare a 0.15 M buffer solution at pH 4.9? Note that the concentration and/or pH value may diffe…

What concentrations of acetic acid (pKa 4.76) and acetate would be required to p

What concentrations of acetic acid (pKa 4.76) and acetate would be required to prepare a 0.15 M buffer solution at pH 4.9? Note that the concentration and/or pH value may differ f…