Chemistry concepts and calculations

4. Find the direction of the magnetic force exerted on the particle in each of t

4. Find the direction of the magnetic force exerted on the particle in each of the following cases (If the force is zero, just report your answer as zero!) (a) on a neutron moving…

4. For 6.7 g of sodium acetate and 6.7 g of magnesium acetate, calculate a) the

4. For 6.7 g of sodium acetate and 6.7 g of magnesium acetate, calculate a) the moles of each salt and b) the moles of acetate ion in the sodium acetate and in the magnesium aceta…

4. For HPO, the Kal is so large, the \"x is small approximation\" is not valid.

4. For HPO, the Kal is so large, the "x is small approximation" is not valid. As a result, pH is not equal to pKal at the first equivalence point. To more accurately determine the…

4. For a solution containing at least one of the cations involved in this experi

4. For a solution containing at least one of the cations involved in this experiment, answer the following questions. (1) A solution is acidified to pH0.5, and HS is added. A dark…

4. For high technological inustries you evaluate metals and ceramics beyond the

4. For high technological inustries you evaluate metals and ceramics beyond the F alloys to more costly applications. A. (50) Select three alloying components for Ti alloys to giv…

4. For the endothermic reaction given below, indicate which way the equilibrium

4. For the endothermic reaction given below, indicate which way the equilibrium will shift (by circling the correct choice) when each of the following changes is made. [10 pts] he…

4. For the iron reaction above, which undergoes a dissociative mechanism: A) How

4. For the iron reaction above, which undergoes a dissociative mechanism: A) How would changing the leaving group from Cl- to Br- affect the reaction rate of the reaction? Why? B)…

4. For the irreversible transition of: 100 g H20 (s, -25°C) 100 g H2O (v, +120°C

4. For the irreversible transition of: 100 g H20 (s, -25°C) 100 g H2O (v, +120°C) Calculate the total amount of heat necessary to effect a set of reversible reactions for theses c…

4. For the java language which of the following are true for static methods: (yo

4. For the java language which of the following are true for static methods: (you can select up to 4) a.invoke non-static methods in the class b.invoke other static methods in the…

4. For the kyanite-bearing metapelite in your Tellus II rock box, list the appro

4. For the kyanite-bearing metapelite in your Tellus II rock box, list the approximate proportions of each of its constituent minerals. Use these data, the chemical formula of typ…

4. For the reaction Barn methane (CH4) if 28.6 grams of oxygen how much carbon d

4. For the reaction Barn methane (CH4) if 28.6 grams of oxygen how much carbon dioside could be produced? grams of methane reacts with 57.6 5. What is the percentage yield of carb…

4. For the reaction If the rate of reaction of hydrogen i What is the rate of re

4. For the reaction If the rate of reaction of hydrogen i What is the rate of reaction of nitrogen? (Hint: is rate of reactinydrogen is 0,0860 M/s, what is the rate of production …

4. Formulate and define an admissible and accurate heuristic to be employed with

4. Formulate and define an admissible and accurate heuristic to be employed with an informed search algorithm like the A for the blocks world problem. The Blocks world is a domain…

4. General Instructions for the following problems (your instructor might give a

4. General Instructions for the following problems (your instructor might give additional instructions): Each problema contains some combination of the following information: TR s…

4. General Instructions for the following problems instructor might give additio

4. General Instructions for the following problems instructor might give additional spectrum list problem contains some combination of the following information: IR UV peak, (with…

4. General Procedure for Single-Unit Process Material Balance Calculations. Orga

4. General Procedure for Single-Unit Process Material Balance Calculations. Organize the steps in order from step 1 to step 9. (5 pts) Choose a basis of calculation. 2 Draw a flow…

4. Given that 4H--393.5 kJ for the rxn. given that AH=-2858 kJ for the rxn: give

4. Given that 4H--393.5 kJ for the rxn. given that AH=-2858 kJ for the rxn: given that AH--84.7 kJ for the rxn: calculate the AH° for the rxn. C(s) +O2(g) ½O2(g) 3H2(g) + 2C(graph…

4. Given the following balanced equation, determine the rate of reaction with re

4. Given the following balanced equation, determine the rate of reaction with respect to 5. What is the general valence-electron ground-state electron configuration for alkaline e…

4. Given the following code: struct Circle { int radius; }; struct Cylinder : pu

4. Given the following code: struct Circle { int radius; }; struct Cylinder : public Circle { int height; }; Circle *cirptr, cir; Cylinder *cylptr, cyl; Which of the following sta…

4. Given the following equation Cu(H2O)62+ (aq, blue) + 4Br(aq) CuBr42-(aq, gree

4. Given the following equation Cu(H2O)62+ (aq, blue) + 4Br(aq) CuBr42-(aq, green) + 6H20(1) If the mixture begins as a light blue solution, what changes (if any) should be observ…

4. Given the following reactions determine whether each will favor the products

4. Given the following reactions determine whether each will favor the products or the reactants: Reaction 1: Acetylide + Ethanol     Acetylene + Ethoxide (pKa Acetylene=25, pKa E…

4. Grain growth is strongly dependent on temperature (i.e., rate of grain growth

4. Grain growth is strongly dependent on temperature (i.e., rate of grain growth increases with increasing temperature), yet temperature is not explicitly given as a part of Equat…

4. Henry\'s law can be written in another form to calculate the solubility (c) o

4. Henry's law can be written in another form to calculate the solubility (c) of a gas in a solvent: where K is the Henry's law constant and P is the partial pressure of the gas. …

4. How could you use proton NMR to distinguish between cach of the following pai

4. How could you use proton NMR to distinguish between cach of the following pairs of constitutional isomers specific about the peaks, peak splitting, and/or peak location differe…

4. How could you use proton NMR to distinguish between cach of the following pai

4. How could you use proton NMR to distinguish between cach of the following pairs of constitutional isomers specific about the peaks, peak splitting, and/or peak location differe…

4. How do you decide whether to use enough hot water to dissolve acetanilide or

4. How do you decide whether to use enough hot water to dissolve acetanilide or enough to dissolve phenacetin? 5. If someone mixed sand into your unknown sample so you could not s…

4. How many grams of magnesium nitride is needed to react with an excess amoun p

4. How many grams of magnesium nitride is needed to react with an excess amoun potassium oxide to produce 11.6 grams of magnesium oxide? Use the following to answer questions 5-8 …

4. How many milliliters of 0.0844 M Ba(OH)2 are required to titrate 50.00 mL of

4. How many milliliters of 0.0844 M Ba(OH)2 are required to titrate 50.00 mL of 0.0526 M HNO:? 5. A 25.00 mL sample of 0.132 M nitric acid is mixed with 10.00 mL of 0.318 M potass…

4. How much potassium nitrate (KNO,) should be dissolved in a 100-gallon stock (

4. How much potassium nitrate (KNO,) should be dissolved in a 100-gallon stock (installed with a 1:200 ratio injector) to provide 14 meq/L NO, in the final fertilizer solution? An…

4. IR analysis of unknowns. Identify major peaks from both spectra including any

4. IR analysis of unknowns. Identify major peaks from both spectra including any peaks that may support the functional group identity. (10 pts. each) 5. NMR spectra with complete …

4. Identify the likely dominant bonding mechanism in: a) Mgo b) InSb c) Tio d) B

4. Identify the likely dominant bonding mechanism in: a) Mgo b) InSb c) Tio d) Brass e) Rubber Justify, your answers for Insb and TiO2 by calculating % of ionic bonding. For a K -…

4. Identify the likely dominant bonding mechanism in: a) Mgo b) InSb c) Tio d) B

4. Identify the likely dominant bonding mechanism in: a) Mgo b) InSb c) Tio d) Brass e) Rubber Justify, your answers for Insb and TiO2 by calculating % of ionic bonding. For a K -…

4. Identify the most important type of noncovalent interaction for each of the f

4. Identify the most important type of noncovalent interaction for each of the following BaSO, (a salt), Ar, NO2, and HF. Explain why the following compounds have different boilin…

4. If 6.7 g of sodium acetate or 6.7 g of magnesium acetate is dissolved in a to

4. If 6.7 g of sodium acetate or 6.7 g of magnesium acetate is dissolved in a total volume of 0.200 L of water calculate a) the molarity of sodium acetate b) the molarity of magne…

4. If a 200 g sample of carbon dioxide gas (44.01 g/mol) has a volume of 3.5 L,

4. If a 200 g sample of carbon dioxide gas (44.01 g/mol) has a volume of 3.5 L, what is the volume of 800 g of carbon dioxide at the same pressure and temperature? (7 points) A. 1…

4. If a deadlock occurs at a combination of downtown intersections, as shown in

4. If a deadlock occurs at a combination of downtown intersections, as shown in the figure below, explain in detail how you would identify that a deadlock has occurred, how you wo…

4. If cells synthesizing glucose from lactate are exposed to CO 2 labeled with 1

4. If cells synthesizing glucose from lactate are exposed to CO2 labeled with 14C, what will be the distribution of label in the newly synthesized glucose? C-1 and C-6 C-2 and C-5…

4. If the planet Mars is about 56 million kilometers from Earth, how long would

4.         If the planet Mars is about 56 million kilometers from Earth, how long would it take for a radio wave sent from a space satellite circling Mars to reach Earth? Assume t…

4. If you burn 2.3 grams of a compound off the top of crème brulee, and it has c

4. If you burn 2.3 grams of a compound off the top of crème brulee, and it has carbon, oxygen, and hydrogen, would you be able to determine the empirical formula if you collected …

4. If you were to measure the melting point prior to recrystallization, what wou

4. If you were to measure the melting point prior to recrystallization, what would you expect (compared to the melting point of the recrystallized product)? As. Comment of the pur…

4. Imagine that you are given two metal oxides to study in the lab. You heat eac

4. Imagine that you are given two metal oxides to study in the lab. You heat each oxide in a small test tube and then insert a glowing splint into each. You observe that the splin…

4. In Part IIA , a student uses 0.020061 M KMnO4 to titrate a sample containing

4. In Part IIA, a student uses 0.020061 M KMnO4 to titrate a sample containing oxalate ions, C2O42-: 5C2O42- + 2MnO4- +16H+ --------> 10 CO2 + 2 Mn2+ + 8 H2O These data were ob…

4. In Parts A.2 or B.1, if the solution is too acidic, the tris-bipyridyliron(I)

4. In Parts A.2 or B.1, if the solution is too acidic, the tris-bipyridyliron(I) complex will not form Considering the properties of ligands in general, why might the bipyridyl li…

4. In Parts A.2 or B.1, if the solution is too acidic, the tris-bipyridyliron(I)

4. In Parts A.2 or B.1, if the solution is too acidic, the tris-bipyridyliron(I) complex will not form Considering the properties of ligands in general, why might the bipyridyl li…

4. In TLC lab when you separated spinach pigments’, most sections found 45:55 ac

4. In TLC lab when you separated spinach pigments’, most sections found 45:55 acetone:hexanes mobile phase composition to give the best results. In column chromatography, the best…

4. In a chemical equation the products anc on the left vide of the aow and the a

4. In a chemical equation the products anc on the left vide of the aow and the a. tue b. false 35. What is the physicall quantity expressed by the following a volume measurement: …

4. In a second experiment, 16.00 g of sodium ace- col- tate trihydrate (GMM = 13

4. In a second experiment, 16.00 g of sodium ace- col- tate trihydrate (GMM = 136.08 g mol-1)was dissolved tate in 100.00 mL of water. The initial temperature was L of 25.00°C, an…

4. In a series of chemical test reactions the following observations were made w

4. In a series of chemical test reactions the following observations were made when several metallic ele­ment samples were treated with 3.00 M hydrochloric acid solution. Zn: meta…

4. In a test tube mix 1 g of Na COs with 3 mL of 6.0 M HCl If a gas evolves, wha

4. In a test tube mix 1 g of Na COs with 3 mL of 6.0 M HCl If a gas evolves, what compound is responsible for it? What happens to the solution over time? Report the overall chemic…

4. In a test tube mix 1 g of Na2COs with 3 mL of 6.0 M HCI. If a gas evolves, wh

4. In a test tube mix 1 g of Na2COs with 3 mL of 6.0 M HCI. If a gas evolves, what compound is responsible for it? What happens to the solution over time? Report the overall chemi…