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Chemistry concepts and calculations

117302 questions • Page 149 / 2347

1. Use the IO module to read inputs. Use System.out.println() to print your answ
1. Use the IO module to read inputs. Use System.out.println() to print your answer. Write a program that generates a canonical-form, degree-3 (cubic) polynomial given its roots. F…
1. Use the Management Studio to create a new database called xxxWebDB using the
1.     Use the Management Studio to create a new database called xxxWebDB using the default settings. (If the database already exists, use the Management Studio to delete it and t…
1. Use the Pronciples of bonding and molecular structure toexplain the following
1. Use the Pronciples of bonding and molecular structure toexplain the following: a. The boiling point of argon is -186 degrees whereasthe boiling point of neon is -246. b. More e…
1. Use the Rydberg equation and your measured wavelengths to determine the energ
1. Use the Rydberg equation and your measured wavelengths to determine the energy transitions associated with each of your observed wavelengths for hydrogen. In other words, calcu…
1. Use the activity series from your text to determine whether tin will dissolve
1. Use the activity series from your text to determine whether tin will dissolve in a 1.0M acid solution (a solution of H+ ions) according to the following equation. Explain your …
1. Use the average concentration of vitamin C from your data, and calculate the
1. Use the average concentration of vitamin C from your data, and calculate the volume of fruit drink that would satisfy your minimum daily requirement of vitamin C. Show your wor…
1. Use the energy table and the molecular structure to answer the following: a).
1. Use the energy table and the molecular structure to answer the following: a). Identify the largest contribuor(s)(energy) to total energy. b). For non-bonded energy, discuss any…
1. Use the given Ksp for PbCl2 (s) value (Ksp = 2x10-5), calculate the minimum c
1. Use the given Ksp for PbCl2 (s) value (Ksp = 2x10-5), calculate the minimum chloride ion concentration [Cl-] required to initiate precipitation of lead(II) chloride from a solu…
1. Use the slope and intercept of data from the fit in Figure 1 with the value o
1. Use the slope and intercept of data from the fit in Figure 1 with the value of absorbance for your unknown to calculate the ferrous iron concentration (mol/L) in your unknown a…
1. Use the table \'Standard Reduction Potentials\' located in the \'Tables\', to
1. Use the table 'Standard Reduction Potentials' located in the 'Tables', to predict if a reaction will occur between Cu metal and I2(s), when the two are brought in contact via h…
1. Use the unbalanced equation C2H6O + O2 ? CO2 + H2O to answer the following qu
1. Use the unbalanced equation C2H6O + O2 ? CO2 + H2O to answer the following questions. The theoretical number of carbon dioxide moles produced from three moles C2H6O is ________…
1. Use the van der waals equation to calculate the pressure exerted by 1.470 mol
1. Use the van der waals equation to calculate the pressure exerted by 1.470 mol of Cl2 in a volune of 5.285 L at a temperature of 280.0 K . 2. Use the ideal gas equation to calcu…
1. Use your value for the heat of neutralization,H 1 =-158.0kJ/mol, to determine
1. Use your value for the heat of neutralization,H1=-158.0kJ/mol, to determine the amount of heatevolved when 20.00mL of 0.4012M HNO3 reacts with 20.00mLof 0.3978 NaOH. 1. Use you…
1. Use your value for the heat of neutralization,H 1 =-158.0kJ/mol, to determine
1. Use your value for the heat of neutralization,H1=-158.0kJ/mol, to determine the amount of heatevolved when 20.00mL of 0.4012M HNO3 reacts with 20.00mLof 0.3978 NaOH. 2. Use you…
1. Using Figure 14.4, answer the following questions. a. What is the molar compo
1. Using Figure 14.4, answer the following questions. a. What is the molar composition of the vapor in equilibrium with a boiling liquid that has a composition of 60% A and 40% B?…
1. Using Figure 2, determine a. the number of grams of KNO3 that will dissolve i
1. Using Figure 2, determine a. the number of grams of KNO3 that will dissolve in 100.0 g of H2O at 100 Using Figure 2, determine the number of grams of KNO3 that will dissolve in…
1. Using Henry\'s Law constants in the table 6.1 given below, calculate the solu
1. Using Henry's Law constants in the table 6.1 given below, calculate the solubility in M of each gas in water at 25C if PO2=0.2bar where K is 42*103 bar PN2=0.75bar where K is 8…
1. Using LeChâtelier’s principle, determine whether the reactants or products ar
1. Using LeChâtelier’s principle, determine whether the reactants or products are favored and the direction of the shift in equilibrium (left or right) in the following examples. …
1. Using a standard reduction potential table, such as Table 18, in our textbook
1. Using a standard reduction potential table, such as Table 18, in our textbook a. Write the half-reaction for the reduction of Mg" and write its standard reduction potential. b.…
1. Using known solutions containing Cu 2+ , you will construct a graph of: a) Wa
1. Using known solutions containing Cu2+, you will construct a graph of: a) Wavelength vs. concentration b) Moles vs. wavelength c) Moles vs. transmittance d) Absorbance vs. conce…
1. Using only the periodic table arrange the following elements in order of incr
1. Using only the periodic table arrange the following elements in order of increasing ionization energy: helium, radon, xenon, krypton 2. Using only the periodic table arrange th…
1. Using principles of chemical bongingand molecular geometry, explain each of t
1. Using principles of chemical bongingand molecular geometry, explain each of the followingobservations. Lewis electron-dot diagrams and sketches ofmolecules may be helpful as pa…
1. Using reactant amounts of 0.5 mL 1M bromine solution and 0.5 mL ethylbenzene
1. Using reactant amounts of 0.5 mL 1M bromine solution and 0.5 mL ethylbenzene show that bromine is the limiting reagent. You will have to calculate the molecular weight of ethyl…
1. Using the ICE chart and/or Henderson-Hasselbalch equation, calculate the pH o
1. Using the ICE chart and/or Henderson-Hasselbalch equation, calculate the pH of the buffer before and after each addition of .10M NaOH solution ( 0 mL, .5 mL, 1 mL, 1.5 mL, 2.0 …
1. Using the Michaelis-Menten Equation, When k2 is very small compared to K1 and
1. Using the Michaelis-Menten Equation, When k2 is very small compared to K1 and K-, What process is the rate determining in product formation? 2. In a multi-step reaction, what s…
1. Using the Michaelis-Menten Equation, When k2 is very small compared to K1 and
1. Using the Michaelis-Menten Equation, When k2 is very small compared to K1 and K-, What process is the rate determining in product formation? 2. In a multi-step reaction, what s…
1. Using the Michaelis-Menten Equation, When k2 is very small compared to K1 and
1. Using the Michaelis-Menten Equation, When k2 is very small compared to K1 and K-, What process is the rate determining in product formation? 2. In a multi-step reaction, what s…
1. Using the Michaelis-Menten Equation, When k2 is very small compared to K1 and
1. Using the Michaelis-Menten Equation, When k2 is very small compared to K1 and K-, What process is the rate determining in product formation? 2. In a multi-step reaction, what s…
1. Using the NaCI-H20 phase diagram below, please answer the following questions
1. Using the NaCI-H20 phase diagram below, please answer the following questions. 50 Liquid (brine) 40 0 Salt 30 Ice 20 Liquid (brine) o-10 Liquid (brine 10 20 -10 Ice+ Salt -20 N…
1. Using the appropriate K sp values, find the concentration of Cu 2 + ions in t
1. Using the appropriate Ksp values, find the concentration of Cu2+ ions in the solution at equilibrium after 650 mL of 0.50 M aqueous Cu(NO3)2 solution has been mixed with 300 mL…
1. Using the average observed rotation for 15% sucrose, calculate it\'s specific
1. Using the average observed rotation for 15% sucrose, calculate it's specific rotation. 2. Using the average observed rotation for 30 % sucrose, calculate it's specific rotation…
1. Using the below chemical equation, how many moles of magnesium are needed to
1. Using the below chemical equation, how many moles of magnesium are needed to react with 0.49 moles of oxygen gas? The molar mass of oxygen gas is 31. 998 grams per mole and the…
1. Using the enthalpies of formation given below, calculate H° rxn in kJ, for th
1. Using the enthalpies of formation given below, calculate H°rxn in kJ, for the following reaction. Report your answer to two decimal places in standard notation. 2H2S(g) + 3O2(g…
1. Using the given energy diagram, label the activation energy (Ea) for each ste
1. Using the given energy diagram, label the activation energy (Ea) for each step and the enthalpy change for the overall reaction (Af,Then, identify each of the following: Reacta…
1. Using the method described in the lab, you wanted to determine the formula of
1. Using the method described in the lab, you wanted to determine the formula of the transition metal oxide, zinc oxide. Starting with 3.145 g of zinc you formed 3.915 g of oxide.…
1. Using the microprocessor simulator, open the program 99Step.asm . Step throug
1. Using the microprocessor simulator, open the program 99Step.asm. Step through its execution to understand its current operation. Explain the operation of the program in detail.…
1. Using the molecule below, which is a drug molecule, answer parts 1a-1c. In th
1. Using the molecule below, which is a drug molecule, answer parts 1a-1c. In this drawing, all bonds, atoms, and formal charges are shown. 1a) How many likely Hydrogen bond accep…
1. Using the pH obstained for solution 1,2,3 and 4 calculate the percentage ioni
1. Using the pH obstained for solution 1,2,3 and 4 calculate the percentage ionization for each of those 4 solutions. 2. Explain the difference in percentage ionization of solutio…
1. Using the reaction mixture in Problem 1, a student found that it took 230 sec
1. Using the reaction mixture in Problem 1, a student found that it took 230 seconds for the color of the I2 to disappear. a. What was the rate of the reaction? Hint: First find t…
1. Using the reaction mixture in Problem 1, a student found that it took 230 sec
1. Using the reaction mixture in Problem 1, a student found that it took 230 seconds for the color of the I2 to disappear. a. What was the rate of the reaction? Hint: First find t…
1. Using the reactions listed, what property of each method (spectrometric metho
1. Using the reactions listed, what property of each method (spectrometric methods, conductometric methods, and manometric methods) resulted in the selection of the specific metho…
1. Using the reduction half-reactions and standard reductions potentials, determ
1. Using the reduction half-reactions and standard reductions potentials, determine the free energy change for a pair of electrons from NADH to the FMN complex I. Is there enough …
1. Using the standard enthalpies of formation, what is the standard enthalpy of
1. Using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) + H2O(g) --> CO2(g) + H2(g) 2. Calculate the standard enthalpy change for the fo…
1. Using the standard reduction potentials listed in Appendix E in the textbook,
1. Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reactions at 298 K. A. Fe(s)+Ni2+(aq)…
1. Using the table of bond dissociation enthalpies, calculate H ° for the reacti
1. Using the table of bond dissociation enthalpies, calculate H° for the reaction A. (Use the entries for propene and propenyl halides for the calculation of cyclohexene and cyclo…
1. Using the thermochemical equations 2 C2 He (g) + 702(g)--> 4 CO2 (g) + 6 H2 O
1. Using the thermochemical equations 2 C2 He (g) + 702(g)--> 4 CO2 (g) + 6 H2 O (g) AH =-2599 kJ c. H2 (g) +1/202 (9)H2O (9) AH =-286 kJ Calculate 4H for 2. Given the thermoch…
1. Using the values below , what is the ka of your unkniwn acid? pH = pKa + log
1. Using the values below , what is the ka of your unkniwn acid? pH = pKa + log ([A-])/([HA]) a) From the graph, determine the volume of NaOH required to reach the equivalence poi…
1. Using values from Appendix 3 of Chang’s Chemistry, calculate the standard ent
1. Using values from Appendix 3 of Chang’s Chemistry, calculate the standard enthalpy change for the following reaction: AgNO3 (aq) + Br2 (g) AgBr (s) + Na+ (aq) -------------- 2-…
1. Using what we learned above, the magnitude of the acceleration of the hanging
1. Using what we learned above, the magnitude of the acceleration of the hanging mass (m1), is ___________ to the magnitude acceleration of the mass on the table (m2). a. larger; …
1. Using your answer for question 4, what volume (in mL) would this amount of wa
1. Using your answer for question 4, what volume(in mL) would this amount of water occupy when vaporized at 100oC and 1atm? ** Write answer in decimal fom to one decimal place. No…