Chemistry concepts and calculations

2. The reaction: is studied by determining the rare of reaction at different con

2. The reaction: is studied by determining the rare of reaction at different concentrations of H2, while the concentration of NO is kept constant. The results are as follows: a. W…

2. The reduction of the frequency, magnitude of exposure to risks to prevent or

2. The reduction of the frequency, magnitude of exposure to risks to prevent or minimize the potential impact of a natural disaster is called natural hazard natural disaster relie…

2. The retention times in seconds in a GLC are the following: Air, 5.6; n-Butane

2. The retention times in seconds in a GLC are the following: Air, 5.6; n-Butane, 48.7; substance A. 85.4; n-Hexane, 103.0; substance B. 152.0 Which one of substances A and B is a…

2. The titration process is used to analyze the content of some food product. Le

2. The titration process is used to analyze the content of some food product. Let's say you are analyzing the concentration of acetic acid in the vinegar. Answer the following que…

2. The vapor pressure of liquid octane, C8H18, is 100. mm Hg at 339 K. A sample

2. The vapor pressure of liquid octane, C8H18, is 100. mm Hg at 339 K. A sample of C8H18 is placed in a closed, evacuated 518 mL container at a temperature of 339 K. It is found t…

2. The vapor pressure of propane is 107.7 psi at a temperature of 60°F, 67.7 psi

2.   The vapor pressure of propane is 107.7 psi at a temperature of 60°F, 67.7 psi at 30°F, and about 14.7 psi at a temperature of -44°F.       At about what temperature does prop…

2. The weak base, hydroxylamine (HONH2) is generally stable in solution but can

2. The weak base, hydroxylamine (HONH2) is generally stable in solution but can easily explode if dried into its solid state. The pKa of its conjugate acid is 5.96 (Harris, Append…

2. TheratelawforthereactionA+BProductswasfoundtoberate=k[A][B]2. a. What is the

2. TheratelawforthereactionA+BProductswasfoundtoberate=k[A][B]2. a. What is the reaction order with respect to A? b. What is the reaction order with respect to B? c. What is the o…

2. There are 8 confirmed planets in our solar system. The number of significant

2. There are 8 confirmed planets in our solar system. The number of significant figures in this number is 1. True or False? Explain. 3 Do the following calculations, reporting the…

2. There is a saying that \"like dissolves like.\" At O°C, CO2 has solubility in

2. There is a saying that "like dissolves like." At O°C, CO2 has solubility in water of 0.35 g CO2/100g H:O, while the solubility for SO2 is 22.8 g SO2/100g H:O. In light of your …

2. There is nothing like the smell of BBQ in the summertime. Many people use pro

2. There is nothing like the smell of BBQ in the summertime. Many people use propane gas Barbeques to cook the perfect steak. Here is the reaction that is occurring while the stea…

2. Thinking about your reasoning for the TLC question above, devise a way to sep

2. Thinking about your reasoning for the TLC question above, devise a way to separate unreacted alcohol from your ester using column chromatography. You do not need to he specific…

2. This question continues on the next two pages. The compounds that gave each o

2. This question continues on the next two pages. The compounds that gave each of the following IR spectra contain a carbonyl. Some of them also contain an aromatic ring and/or an…

2. This question continues on the next two pages. The compounds that gave each o

2. This question continues on the next two pages. The compounds that gave each ot the ollowing IR an alkene. Some of the compounds may contain more than one type of car (1 pt per …

2. To make the least concentrated sample, use a pipet to accurately transfer 1.0

2. To make the least concentrated sample, use a pipet to accurately transfer 1.00 mL of the standard iron solution into the 100 mL volumetric flask provided. 3. Dilute to about 50…

2. Tomato paste contains lycopene and ?-carotene. A student designed a column ch

2. Tomato paste contains lycopene and ?-carotene. A student designed a column chromatography experiment in which he used alumina for stationary phase. He started by eluting the fi…

2. Transition metals bonded to six ligands usually adopt an octahedral geometry.

2. Transition metals bonded to six ligands usually adopt an octahedral geometry.  However, there are examples of six-coordinate metal complexes with a  prism-like structure. These…

2. Transition metals exist in a variety of oxidation states. Molybdenum, for exa

2. Transition metals exist in a variety of oxidation states. Molybdenum, for example, exists in [16] zero valent state in Mo(CO)6, but in the 6+ state in the ion molybdate, MoO Th…

2. True/false questions. Decide whether each of the following statements is true

2. True/false questions. Decide whether each of the following statements is true. For each answer, provide a short justification with 3 sentences or less. (total: 15 points) (0) A…

2. Two 10.0 mL samples of the same acid were titrated with a 0.11 M solution of

2. Two 10.0 mL samples of the same acid were titrated with a 0.11 M solution of KOH. The titration curves for these two samples appear below. Select all of the following statement…

2. Two 10.0 mL samples of the same acid were titrated with a 0.11 M solution of

2. Two 10.0 mL samples of the same acid were titrated with a 0.11 M solution of KOH. The titration curves for these two samples appear below. Select all of the following statement…

2. Two identical rigid boxes contain helium gas. Each box contains 1 mole of hel

2. Two identical rigid boxes contain helium gas. Each box contains 1 mole of helium. We can assume that the helium is an ideal gas, and its heat capacity is Cv 1.5R. Box A is init…

2. Two solid objects, A and B, are placed in boiling water and allowed to come t

2. Two solid objects, A and B, are placed in boiling water and allowed to come to temperature there. Each is then lifted and placed in separate beakers containing 100 g water at 1…

2. Two students performing the general unknown lab were told that their unknown

2. Two students performing the general unknown lab were told that their unknown would contain 4 cations. They first tested for the silver and aluminum, but found that another ion …

2. Unknown compound /has a melting point of 102-3°C. Carbon/hydrogen analysis of

2. Unknown compound /has a melting point of 102-3°C. Carbon/hydrogen analysis of compound / showed 30.4% carbon and 21% hydrogen Carius sulfur analysis of a 8.45 mg sample of comp…

2. Use Coulomb\'s law to explain why sodium (Na) is more electronegative than ce

2. Use Coulomb's law to explain why sodium (Na) is more electronegative than cesium (Cs), even though the nuclear charge on Cs is larger than for Na. To answer this question you n…

2. Use the following data to determine the rate constant and rate law for the fo

2. Use the following data to determine the rate constant and rate law for the following reaction Be sure to include the appropriate units on the rate constant and show all work B]…

2. Use the information in the table to calculate the enthalpy of this reaction (

2. Use the information in the table to calculate the enthalpy of this reaction (5)* C.Ho(g)+72 Og)2 Co (8)+3H-O0) 2C(s)+3H(g)C2Hs (g) AH--84.7 kJ/mol (a)-764 kJ (b)-1560 kJ (c)-16…

2. Use the melting point phase diagram in the lab manual to help answer this que

2. Use the melting point phase diagram in the lab manual to help answer this question. If you compare the melting point of a slightly impure mixture with the melting point of a pu…

2. Use the melting point phase diagram in the lab manual to help answer this que

2. Use the melting point phase diagram in the lab manual to help answer this question. If you compare the melting point of a slightly impure mixture with the melting point of a pu…

2. Use your assigned set of data to determine the molarity of HCL Record the res

2. Use your assigned set of data to determine the molarity of HCL Record the result to two decimal places a. 40.0 mL of 0.10 M NaOH requires 30.0 mL of HCI for neutralization. b. …

2. Using Hess’s Law and your results from parts I and II, calculate ÄH rxn, for

2. Using Hess’s Law and your results from parts I and II, calculate ÄH rxn, for reaction CH3COOH(aq) ->CH3COO (aq) + H (aq. 3. Calculate the ÄH f of the OH ion given that the Ä…

2. Using calorimetry a student was to determine the change in enthalpy for the r

2. Using calorimetry a student was to determine the change in enthalpy for the reaction that occurred when 0.100 grams of Mg(s) was added to 52.00 grams HCl(ag) The reaction that …

2. Using the ideal gas equation, determine the number of moles present in a gas

2. Using the ideal gas equation, determine the number of moles present in a gas if it has a pressure of 2.07 atm, a volume of 1.28 L and a temperature of 46.8 oC. Enter your answe…

2. Using the isothermal transformation diagram for an iron-carbon alloy of eutec

2. Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the nature of the final microstructure (in terms of the microconstituents…

2. Using the principals of thermodynamics and molecular kinetic collision theory

2. Using the principals of thermodynamics and molecular kinetic collision theory, answer the questions regarding the spontaneous system shown below at 298 K CO2 (g) + 2 NH3 (g)-&g…

2. Using the second right hand rule, fill in the blanks in the table below descr

2. Using the second right hand rule, fill in the blanks in the table below describing the force that acts on a moving charge due to the presence of the magnetic field described in…

2. Using these graphs and the equation Go-dHo-Taso, determine the change of enth

2. Using these graphs and the equation Go-dHo-Taso, determine the change of enthalpy and the change of entropy for each compound AHO 4S (kJ/mol K) Compound Equation from Graph (kJ…

2. Using to Figure 6-11 page 283 of your text book (Modern Database Management,

2. Using to Figure 6-11 page 283 of your text book (Modern Database Management, 11th Edition Author: Jeffrey A. Hoffer ; Ramesh Venkataraman ; Heikki Topi VBID: 9781323027226 , wr…

2. Using your answer to question 1 calculate the theoretical and percent yields

2. Using your answer to question 1 calculate the theoretical and percent yields for your product? l. Balance the following reaction equation. Note: in organic Chemistry, a standar…

2. Verify experimentally that the average depth of the nodes in randomly built b

2. Verify experimentally that the average depth of the nodes in randomly built binary search trees containing n nodes is o (log n) for trees containing n = 4, 32,256, and 2048 nod…

2. Verify experimentally that the average depth of the nodes in randomly built b

2. Verify experimentally that the average depth of the nodes in randomly built binary search trees containing n nodes is O (log n) for trees containing n = 4. 32,256, and 2048 nod…

2. Watch the video of sodium borohydride reacting with water (Cinked here) Under

2. Watch the video of sodium borohydride reacting with water (Cinked here) Understand that the mixture you see resulted from my adding about 1 gram of solid sodium borohydride to …

2. We have stated in class that in a \"Type 6\" problem like a titration in whic

2. We have stated in class that in a "Type 6" problem like a titration in which different acids and bases are mixed together, you should first run a neutralization reaction to com…

2. We typically think of dipole-dipole interactions as being stronger than Londo

2. We typically think of dipole-dipole interactions as being stronger than London Dispersion forces for molecules that are similar in size. Think about candle wax (a long chain hy…

2. What cation reagent you will first use to test the known anion solutions? Wha

2. What cation reagent you will first use to test the known anion solutions? What do you need to observe carefully? 3.List the reagents you will use in order to learn more about d…

2. What combination of physical and mechanical properties would be required for

2. What combination of physical and mechanical properties would be required for the heat shield of the Space Shuttle? a. Low melting temperature and high density b. High melting t…

2. What did Ernest Rutherford\'s gold foil experiment determine? a) Protons are

2. What did Ernest Rutherford's gold foil experiment determine? a) Protons are positively charged and are contained in the atom's nucleus b) Electrons are negatively charged c) Ne…

2. What is the boiling point of cyclohexane? Toluene? Cyclohexane: Toluene: Whic

2. What is the boiling point of cyclohexane? Toluene? Cyclohexane: Toluene: Which of the following transitions best exemplifies the temperature gradient (transition) that you want…

2. What is the correct cell notation for a voltaic cell based on the reaction be

2. What is the correct cell notation for a voltaic cell based on the reaction below? Ag, (aq) + Sn (s) Ag (s) + Sn"(aq) a) Ag (s)|Ag. (aq)Sn2. (aq)| Sn (s) b) Sn (s)Ag+ (aq)Sn2. (…