Chemistry concepts and calculations
117302 questions • Page 2160 / 2347
a) Write the balanced equation (not the mechanism) for the protonation ofnitric
a) Write the balanced equation (not the mechanism) for the protonation ofnitric acid by sulfuric acid, represented as an equilibrium expression. b) Write the equilibrium constant …
a) Write the chemical equation for the for the dissociation of magnesium chlorid
a) Write the chemical equation for the for the dissociation of magnesium chloride into the metal and gaseous chlorine. b) At 1000 K, what is the pressure of chlorine in equilibriu…
a) Write the dissolution reaction for lead(II) iodide. How many grams of lead(II
a) Write the dissolution reaction for lead(II) iodide. How many grams of lead(II) iodide will dissolve in 250.0 mL of water? What are the molarities of lead(II) ion and iodide ion…
a) Write the electronic configuration of 3sBr b) Indicate # ofelectrons in each
a) Write the electronic configuration of 3sBr b) Indicate # ofelectrons in each of the followings: 16S2 Br 1. 13 2. a) Calculate the molar mass of (NH4)3 P04 b) If7.21 g of KCl is…
a) Write the electronic configuration of 3sBr b) Indicate # ofelectrons in each
a) Write the electronic configuration of 3sBr b) Indicate # ofelectrons in each of the followings: 16S2 Br 1. 13 2. a) Calculate the molar mass of (NH4)3 P04 b) If7.21 g of KCl is…
a) Write the equation for the esterification of 3-pentanol with acetic acid and
a) Write the equation for the esterification of 3-pentanol with acetic acid and give a catalyst for the reaction. b) Given the equilibrium constant, K=2.0, calculate how many mole…
a) Write the equation for the esterification of 3-pentanol with acetic acid and
a) Write the equation for the esterification of 3-pentanol with acetic acid and give a catalyst for the reaction. b) Given the equilibrium constant, K=2.0, calculate how many mole…
a) Write the net ionic equations for Reactions 1, 2 and 3. Reaction 1 : Solid so
a) Write the net ionic equations for Reactions 1, 2 and 3. Reaction 1: Solid sodium hydroxide dissolves in water to form an aqueous solution of ions. NaOH(s) Na+(aq) + OH-(aq) …
a) Wtrite the equation for dissociation of ammonium hydroxide (ammonia), its equ
a) Wtrite the equation for dissociation of ammonium hydroxide (ammonia), its equilibrium expression, and the value of it's Kb: b)Write the net ionic equation for the reaction of w…
a) Wtrite the equation for dissociation of ammonium hydroxide (ammonia), its equ
a) Wtrite the equation for dissociation of ammonium hydroxide (ammonia), its equilibrium expression, and the value of it's Kb: b)Write the net ionic equation for the reaction of w…
a) You are assigned by s bioethanol industry to design and fabricate a stirred t
a) You are assigned by s bioethanol industry to design and fabricate a stirred tank bioreactor with the variation of the procenses such as batch, fed-batch and continuous system a…
a) You are assigned by s bioethanol industry to design and fabricate a stirred t
a) You are assigned by s bioethanol industry to design and fabricate a stirred tank bioreactor with the variation of the procenses such as batch, fed-batch and continuous system a…
a) You are using a Geiger counter to measure the activity of a radioactive subst
a) You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the reading of 400. counts has diminished to 100. count…
a) You have a solution containing five problems: Protein A, 48 kDa, p1 8.2 Prote
a) You have a solution containing five problems: Protein A, 48 kDa, p1 8.2 Protein B, 60 kDa, p1 5.5 Protein C, 17 kDa, p1 5.7 Protein D, 18 kDa, p1 7.9 Protein E (MBP tagged), 58…
a) You have previously used KMNO 4 in acid solution as a strong oxidizing agent
a) You have previously used KMNO4 in acid solution as a strong oxidizing agent and SnCl2 as a good reducing agent. Diagram a galvanic cell involving these two reagents. Clearly in…
a) You may wish to plot the data carefully or use an automated, numerical tool f
a) You may wish to plot the data carefully or use an automated, numerical tool for linear regression. Problem 2.43 Batch Reactor A chemical reaction A- B is carried out in a close…
a) You start with your modeling predictions. You assume that the polymer does no
a) You start with your modeling predictions. You assume that the polymer does not degrade. Rather, you assume that the dissolution rate of the polymer is proportional to a constan…
a) Your lab partner is confused about current stuff. Help him out. A lab extensi
a) Your lab partner is confused about current stuff. Help him out. A lab extension question reads “If current in a conducting wire is doubled, by how much does the a) charge carri…
a) [H3O+] b) [A-] c) [HA] Trial 2 Trial 3 Trial 1 2.10 Measured pH of the acetic
a) [H3O+] b) [A-] c) [HA] Trial 2 Trial 3 Trial 1 2.10 Measured pH of the acetic acid solution Mass of acetic acid solution taken for titration | 30?015" g | 30, a g Initial buret…
a) [NOBr] 0.0720 M, 0.0162, 0. 0.0139 M [Noj M. b) [NOBr] 0.121 M, [NO]- 0.0159
a) [NOBr] 0.0720 M, 0.0162, 0. 0.0139 M [Noj M. b) [NOBr] 0.121 M, [NO]- 0.0159 M, [Br2] c) [NOBr] 0.103 M, [NO] 0.0134 M, [Br2] 0.0181 M d) [NOBr] 0.0472 M, [No]- 0.0121 M, [Brz]…
a) a certain first order reaction has a rate constant of2.95*10 -1 s -1 at 24 de
a) a certain first order reaction has a rate constant of2.95*10-1 s-1 at 24 degrees C. What is thethe value of k(rate constant) at 67 degreeC if Ea =87.0 kJ/mol? b) a certain firs…
a) a ph meter is used to determine the ph of an unknown HCL solution. if the met
a) a ph meter is used to determine the ph of an unknown HCL solution. if the meter reads 1.80 how many moles of HCL are present in a 25 ml sample? b) how many milliliters of 0.011…
a) accuracy is a measure of how close the measured value is to the true or accep
a) accuracy is a measure of how close the measured value is to the true or accepted value. Precision is a measure of how reproducible the measurements are or how close or similar …
a) butane isheavier than ethane. b) butane has more electronsand is therefore mo
a) butane isheavier than ethane. b) butane has more electronsand is therefore more polarizable than ethane. c) butane has more hydrogensand therefore can make…
a) calculate the approximate net yield of ATP during the aerobic conversion of 2
a) calculate the approximate net yield of ATP during the aerobic conversion of 2 glycerol to 1 glucose. b) calculate the approximate net yield of ATP during the aerobic conversion…
a) calculate the grams of Hydrochloric acid (HCl) thatmust be diluted to a volum
a) calculate the grams of Hydrochloric acid (HCl) thatmust be diluted to a volume of 1 liter to produce concentration of0.5 M. b) calculate the normality of 1 L of solution contai…
a) calculate the number of moles of He that you shoulf add to each balloon so th
a) calculate the number of moles of He that you shoulf add to each balloon so that the volume at the party will bw 10 L b) what will be the volume of each balloon in the laborator…
a) components (C): Number of independent constituents of the phases of the syste
a) components (C): Number of independent constituents of the phases of the system in equilibrium phase (P):Homogeneous and physically separate parts of a system degrees of freedom…
a) discuss the fracture mechanism of ionic solid and metal. b) melting point of
a) discuss the fracture mechanism of ionic solid and metal. b) melting point of both ionic and covalent materials are related to secondary bond. Discuss the idea. c) why the forma…
a) estimate the gas phase enthalpy using the bond dissociation enthalpies provid
a) estimate the gas phase enthalpy using the bond dissociation enthalpies provided. b) is the reaction exothermic or endothermic? c) is the reaction likely to proceed spontaneousl…
a) estimate the gas phase enthalpy using the bond dissociation enthalpies provid
a) estimate the gas phase enthalpy using the bond dissociation enthalpies provided. b) is the reaction exothermic or endothermic? c) is the reaction likely to proceed spontaneousl…
a) give a brief explanation that explains the solublity trend observed for benzo
a) give a brief explanation that explains the solublity trend observed for benzoic acid. you must explicity descrive the intermolecular forces involved. (information: benzoic acid…
a) give a brief explanation that explains the solublity trend observed for benzo
a) give a brief explanation that explains the solublity trend observed for benzoic acid. you must explicity descrive the intermolecular forces involved. (information: benzoic acid…
a) gravimetric analysis is very useful for routine monitoring of ions present in
a) gravimetric analysis is very useful for routine monitoring of ions present in relatively high concentrations. why is gravimetric analysis not used for determining trace amounts…
a) hyperbolic b) linear c) sigmoidal d) electrostatic e) none of the above 46·Th
a) hyperbolic b) linear c) sigmoidal d) electrostatic e) none of the above 46·The oxygen binding curve of the myoglobin protein is best described as: a) hyperbolic b) linear c) si…
a) hyperbolic b) linear c) sigmoidal d) electrostatic e) none of the above 46·Th
a) hyperbolic b) linear c) sigmoidal d) electrostatic e) none of the above 46·The oxygen binding curve of the myoglobin protein is best described as: a) hyperbolic b) linear c) si…
a) if the initial sample is 2.75 g, what mass of the original iridium-192 remain
a) if the initial sample is 2.75 g, what mass of the original iridium-192 remains after 150 days? (in g) b) estimate the half-life of the radioisotope. (days) c) how many days wou…
a) if three samples of KHP weighing , 31.21 mg +- 4.3 % ; 81.4 mg +- 7.12% and 2
a) if three samples of KHP weighing , 31.21 mg +- 4.3 % ; 81.4 mg +- 7.12% and 213.2 mg +- 8.4% were added together, determine the total mass of KHP and its absolute uncertainty. …
a) if three samples of KHP weighing , 31.21 mg +- 4.3 % ; 81.4 mg +- 7.12% and 2
a) if three samples of KHP weighing , 31.21 mg +- 4.3 % ; 81.4 mg +- 7.12% and 213.2 mg +- 8.4% were added together, determine the total mass of KHP and its absolute uncertainty. …
a) melt pure solid phosphorus pentachloride b) boil pure liquid selenium tetrafl
a) melt pure solid phosphorus pentachloride b) boil pure liquid selenium tetrafluoride c) boil pure liquid methanol (CH3OH) d) sublime pure solid carbon dioxide e) melt pure solid…
a) melt pure solid phosphorus pentachloride b) boil pure liquid selenium tetrafl
a) melt pure solid phosphorus pentachloride b) boil pure liquid selenium tetrafluoride c) boil pure liquid methanol (CH3OH) d) sublime pure solid carbon dioxide e) melt pure solid…
a) modify the program to use pointers to access the array elements. b) move the
a) modify the program to use pointers to access the array elements. b) move the calculation of average, variance and standard deviation from main into a separate function. Set up …
a) name the following compounds of various types using the older system of nomen
a) name the following compounds of various types using the older system of nomenclature (classical, descriptive or acid system depending on the type of molecule) pb(C2H3O2)2.3H2O,…
a) rate law for the reaction b) rate constant k I attached my work how I solved
a) rate law for the reaction b) rate constant k I attached my work how I solved this problem can you please help me with: 1) If my calculations are correct (if not please help me …
a) silver (Ag) reacting with Cu(NO3)2 Ag(s) + Cu(NO3)2 (aq) --------------------
a) silver (Ag) reacting with Cu(NO3)2 Ag(s) + Cu(NO3)2 (aq) --------------------> No reaction b) copper (Cu) reacting with Mg(NO3)2 Cu(s) + Mg(NO3)2 (aq) ------------------>…
a) the concentration of HI will rise as the system approaches equilibrium b) the
a) the concentration of HI will rise as the system approaches equilibrium b) the concentrations of HI and I2 will increase as the system approaches equilibrium c) the concentratio…
a) the concentration of HI will rise as the system approaches equilibrium b) the
a) the concentration of HI will rise as the system approaches equilibrium b) the concentrations of HI and I2 will increase as the system approaches equilibrium c) the concentratio…
a) the concentration of HI will rise as the system approaches equilibrium b) the
a) the concentration of HI will rise as the system approaches equilibrium b) the concentrations of HI and I2 will increase as the system approaches equilibrium c) the concentratio…
a) the first ionization energies (IE) of hydrogen and helium are about 1300 kJ/
a) the first ionization energies (IE) of hydrogen and helium are about 1300 kJ/ mol and 2300 kJ/ mol respectively. Yet the electron removed from both of these originated in a 1s o…
a) the van der Waals equation is used to correct the ideal gas equation for the
a) the van der Waals equation is used to correct the ideal gas equation for the behavior of real gases. There are two van der Waals constants 'a' and 'b' that are used in the equa…
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