Chemistry concepts and calculations

14. Answer the following questions on the experimental methods you used. a) (2 p

14. Answer the following questions on the experimental methods you used. a) (2 pts) You determined the mass percent of NH3 in Ni(NH3)nCl2 by a back titration. Explain TWO reasons …

14. Arrange the elements C,O, and H in order of increasing clectronegativity 15.

14. Arrange the elements C,O, and H in order of increasing clectronegativity 15. Which one of the following is not isoelectronic with Kr? C) Rb D) Se2+ E) Br t6. Ibuprofen is used…

14. At-80°C, the equilibrium constant for the reaction NO is 4.66 x 10. At equil

14. At-80°C, the equilibrium constant for the reaction NO is 4.66 x 10. At equilibrium, there was found to be 4.00 mole N,O, in a 1.0L flask. What is the equilibrium concentration…

14. Base your answers to the next two questions on the following chromatograms o

14. Base your answers to the next two questions on the following chromatograms of compounds A and B, which were obtained at the same flow rate with two different columns of equal …

14. Combustion of methane gas is the process through which most household heater

14. Combustion of methane gas is the process through which most household heaters warm homes. The heat given off by the combustion is used to heat the air in the home. Assuming th…

14. Concerning the Haber-Bosch for the synthesis of ammonia, N2(g) t, 3H2(g) 2NH

14. Concerning the Haber-Bosch for the synthesis of ammonia, N2(g) t, 3H2(g) 2NH3(g) which of the following statements is/are true? Ammonia is continually liquified and removed fr…

14. Consider the following equilibrium: PCl 3(g) + Cl 2(g) PCl 5(g) If PCl 5 is

14.       Consider the following equilibrium:        PCl3(g)   +   Cl2(g)      PCl5(g) If PCl5 is put in a container, how will the reaction rates change as the system approaches e…

14. Describe an Injectable Liquid Manufacturing Process 15. Describe a o7 Good M

14. Describe an Injectable Liquid Manufacturing Process 15. Describe a o7 Good Manufacturing Practice Guidance for Active Pharmaceutical Ingredients 16. What are the point to cons…

14. Draw two resonance structures for ozone, 0-0:01 [0-0 15. What is the shape o

14. Draw two resonance structures for ozone, 0-0:01 [0-0 15. What is the shape of the molecule, PF? a bent . trigonal planar l rgonal pyramidal trigonal pyramidal d. tetrahedral I…

14. For the Reaction: HgS(s) + H2(g) -> Hg(l) + H2S(g), using the values from ap

14. For the Reaction: HgS(s) + H2(g) -> Hg(l) + H2S(g), using the values from appendix K in the text Calculate the standard free energy change at 298K and 1.0atm. Is the reacti…

14. For the depicted transformation, which structure represents the intermediate

14. For the depicted transformation, which structure represents the intermediate after the first step in the reaction (immediately before oxygen-carbon bond formation)? (1) cat. H…

14. How many grams of nitrogen and oxygen are dissolved in 125 grams of water at

14. How many grams of nitrogen and oxygen are dissolved in 125 grams of water at 20.0 degrees Celsius when the water is saturated with air, in which PN2 is 593 Torr and Po2 is 159…

14. Ignoring stereochemistry, to the nearest kcal/mole, what is the enthalpy dif

14. Ignoring stereochemistry, to the nearest kcal/mole, what is the enthalpy difference for the overall reaction of 1,3,5-trimethylcyclohexane with chlorine and light. 14. Ignorin…

14. In the Programming Example Election Results, the class candidateType contain

14. In the Programming Example Election Results, the class candidateType contains the function calculateTotalVotes. After processing the voting data, this function calculates the …

14. Increasing the temperat greatly the rate of the reaction. The most ure of a

14. Increasing the temperat greatly the rate of the reaction. The most ure of a chemical reaction usually increases this is that increasing the temperature A) the collision freque…

14. Magnesium hydroxide is insoluble. Write the net ionic equation for the react

14. Magnesium hydroxide is insoluble. Write the net ionic equation for the reaction that takes place between a solution of magnesium chloride and a solution of sodium hydroxide a.…

14. Measure and record the mass of a clean, dry watch glass. Transfer the copper

14. Measure and record the mass of a clean, dry watch glass. Transfer the copper to the watch glass. Make sure that you have scraped all of the copper onto the watch glass. Dry th…

14. Name the clement which has the following numbers of particles: a 26 dectrons

14. Name the clement which has the following numbers of particles: a 26 dectrons, 26 protons b. 33 protons, 74 neutrons e. 2 electrons (neutral oms) d. 20 protoms 86 electrons, 12…

14. Name the clement which has the following numbers of particles: a 26 dectrons

14. Name the clement which has the following numbers of particles: a 26 dectrons, 26 protons b. 33 protons, 74 neutrons e. 2 electrons (neutral oms) d. 20 protoms 86 electrons, 12…

14. One way to follow the progress of a ration and detec its cquivalence point i

14. One way to follow the progress of a ration and detec its cquivalence point is by monitoring the conduciviy of the tiration reaction mixure. For example, consider the way the c…

14. PV nRT in all its possible uses. Here are a few examples of the many possibl

14. PV nRT in all its possible uses. Here are a few examples of the many possible. A. A sample of Argon gas occupies a 1.5 L cylinder at a temperature of 22 °C. The cylinder has a…

14. Predict the products of the following reaction: a) K(aq) OH (aq) + Fe(NO3)2(

14. Predict the products of the following reaction: a) K(aq) OH (aq) + Fe(NO3)2(s) b) KOH (aq) + FeNOs)h (aq) c) No reaction d) Fe2 (aq) +20H (aq) e) KOH (S) +NO, (ag) + Fe(aq) 15…

14. Predict the products of the following reaction: a) K(aq) OH (aq) + Fe(NO3)2(

14. Predict the products of the following reaction: a) K(aq) OH (aq) + Fe(NO3)2(s) b) KOH (aq) + FeNOs)h (aq) c) No reaction d) Fe2 (aq) +20H (aq) e) KOH (S) +NO, (ag) + Fe(aq) 15…

14. Pyridoxine is a water soluble organic substance that is not synthesized by h

14. Pyridoxine is a water soluble organic substance that is not synthesized by humans. It is chemically converted to Pyridoxal Phosphate which is required by aminotransferase enzy…

14. Questions 14-17 refer to the following information. 2 PH,(g) 2 P(s) + 3 H2(g

14. Questions 14-17 refer to the following information. 2 PH,(g) 2 P(s) + 3 H2(g) The thermal decomposition of phosphine (PH) into phosphorous and molecular hydrogen represented b…

14. Questions 14-17 refer to the following information. 2 PH,(g) 2 P(s) + 3 H2(g

14. Questions 14-17 refer to the following information. 2 PH,(g) 2 P(s) + 3 H2(g) The thermal decomposition of phosphine (PH) into phosphorous and molecular hydrogen represented b…

14. Show all of your work for each of the following problems. An aluminum nail o

14. Show all of your work for each of the following problems. An aluminum nail of mass 5.00g is immersed into a solution of copper(II)nitrate. The mass of copper(II)nitrate in the…

14. Show all of your work for each of the following problems. An aluminum nail o

14. Show all of your work for each of the following problems. An aluminum nail of mass 5.00g is immersed into a solution of copper(II)nitrate. The mass of copper(II)nitrate in the…

14. Silver() nitrate reacts with sodium sulfide as shown in the following reacti

14. Silver() nitrate reacts with sodium sulfide as shown in the following reaction. How many grams of silverl) sulfide are formed when 200 g of silver nitrate reacts with 5.0 g of…

14. The \"filmstrip\" represents five molecular-level scenes of a gaseous mixtur

14. The "filmstrip" represents five molecular-level scenes of a gaseous mixture at 25 C as it reaches equilibrium over time. Let the dark circles represent X and the white circles…

14. The \"filmstrip\" represents five molecular-level scenes of a gaseous mixtur

14. The "filmstrip" represents five molecular-level scenes of a gaseous mixture at 25 C as it reaches equilibrium over time. Let the dark circles represent X and the white circles…

14. The beginning of a melting point range is when , and the end is when a. you

14. The beginning of a melting point range is when , and the end is when a. you first observe liquid......all of the solid has liquefied b. you first observe liquid,.......all of …

14. The beta sheet resulting from hydrogen bonding interactions between peptide

14. The beta sheet resulting from hydrogen bonding interactions between peptide groups is described as __________ protein structure. A. primary B. secondary C. tertiary D. quatern…

14. The density of an aqueous solution prepared by mixing equal amounts of ethyl

14. The density of an aqueous solution prepared by mixing equal amounts of ethylene glycol (CH.O2) and water is 1.65 g/mL Calculate the molality, the mol fraction, and the molarit…

14. The density of an aqueous solution prepared by mixing equal amounts of ethyl

14. The density of an aqueous solution prepared by mixing equal amounts of ethylene glycol (CH.O2) and water is 1.65 g/mL Calculate the molality, the mol fraction, and the molarit…

14. The electronegativity of bromine (Br) is 2.8. The electronegativity of carbo

14. The electronegativity of bromine (Br) is 2.8. The electronegativity of carbon (C) is 2.5. The electronegativity of chlorine (Cl) is 3.0. The electronegativity of oxy gen (O) i…

14. The electronegativity of bromine (Br) is 2.8. The electronegativity of carbo

14. The electronegativity of bromine (Br) is 2.8. The electronegativity of carbon (C) is 2.5. The electronegativity of chlorine (Cl) is 3.0. The electronegativity of oxy gen (O) i…

14. The electronegativity of bromine (Br) is 2.8. The electronegativity of carbo

14. The electronegativity of bromine (Br) is 2.8. The electronegativity of carbon (C) is 2.5. The electronegativity of chlorine (Cl) is 3.0. The electronegativity of oxy gen (O) i…

14. The rule that an orbital can h opposite spins is (the) old at most two elect

14. The rule that an orbital can h opposite spins is (the) old at most two electrons and then only if the electrons have b. Pauli Exclusion Principle c. Heisenberg's Uncertainty P…

14. The salting in of proteins can be explained by A) salt counter-ions reducing

14. The salting in of proteins can be explained by A) salt counter-ions reducing electrostatic attractions between protein molecules. B) proteins attracting primarily salt cations…

14. The salting in of proteins can be explained by A) salt counter-ions reducing

14. The salting in of proteins can be explained by A) salt counter-ions reducing electrostatic attractions between protein molecules. B) proteins attracting primarily salt cations…

14. Under certain conditions, different gases behave in a similar manner. This a

14.      Under certain conditions, different gases behave in a similar manner. This approximation is the basis for what is described as an ideal gas. All of the following are desc…

14. Upon entering the laboratory room, where should you place your book bag? 15.

14. Upon entering the laboratory room, where should you place your book bag? 15. You accidentally touch a hot ring clamp and burn your thumb. What should you do? Jex my teching a …

14. Upon entering the laboratory room, where should you place your book bag? 15.

14. Upon entering the laboratory room, where should you place your book bag? 15. You accidentally touch a hot ring clamp and burn your thumb. What should you do? Jex my teching a …

14. Urine is considered normal when the pH range is 5-8.0. Test results show [H+

14. Urine is considered normal when the pH range is 5-8.0. Test results show [H+] = 1×10-9 M for the urine of a patient. How does the pH of this patient's urine compare to the nor…

14. Use the diagram below to answer parts ()(v). 15x2 pts] 1 atm 0.5 atm 50 150

14. Use the diagram below to answer parts ()(v). 15x2 pts] 1 atm 0.5 atm 50 150 250 350 (1) Melting occurs along the (1)AC line (2) CB line (3) CD line (4) all of these (ii) The t…

14. Use the diagram below to answer parts ()(v). 15x2 pts] 1 atm 0.5 atm 50 150

14. Use the diagram below to answer parts ()(v). 15x2 pts] 1 atm 0.5 atm 50 150 250 350 (1) Melting occurs along the (1)AC line (2) CB line (3) CD line (4) all of these (ii) The t…

14. Use the graph on the reverse side of this page to answer the following: a) W

14. Use the graph on the reverse side of this page to answer the following: a) Which substance is least soluble at room temperature? b) Which substance is most soluble at room tem…

14. What is the IUPAC name for the following compound? A) N-cyclopentyl-N-methyl

14. What is the IUPAC name for the following compound? A) N-cyclopentyl-N-methylcylohexanamine B) N-cyclohexyl-N-methylcylohexanamine C) N-cyclopentyl-N-methylcylopentanamine D) c…

14. What is the IUPAC name for the following compound? A) N-cyclopentyl-N-methyl

14. What is the IUPAC name for the following compound? A) N-cyclopentyl-N-methylcylohexanamine B) N-cyclohexyl-N-methylcylohexanamine C) N-cyclopentyl-N-methylcylopentanamine D) c…