Browse 0-9

1) Calculate the effective rate of interest (to the nearest hundredth percent) o

1) Calculate the effective rate of interest (to the nearest hundredth percent) of the following Treasury bill.  Given:  $10,000 Treasury bill, 3.85% for 13 weeks. 2) Karim was pla…

1) Calculate the enthalpy change, H , for the process in which 16.7 g of water i

1) Calculate the enthalpy change, H, for the process in which 16.7 g of water is converted from liquid at 13.3 C to vapor at 25.0 C . For water, Hvap = 44.0 kJ/mol at 25.0 C and C…

1) Calculate the formula weight for the compounds of the formula [(Cu(NH3)x)]SO4

1) Calculate the formula weight for the compounds of the formula [(Cu(NH3)x)]SO4*H20, where x=1^-6 2) Assuming x=1, how much CuSO4*5H20 would you need to prepare 6g of copper ammi…

1) Calculate the freezing point depression expected for an aqueous solution made

1) Calculate the freezing point depression expected for an aqueous solution made by mixing 185.0 grams of glycerol, C3H8O3, with 8.00*102 grams of water. Show your work with corre…

1) Calculate the freezing point of a solution that contains 5.37 g of glucose, a

1) Calculate the freezing point of a solution that contains 5.37 g of glucose, a non electrolyte, dissolved in 118 of water. (Please show work) 2) If 5.33 g of Ethylene Glycol are…

1) Calculate the freezing point of the following solutions, assuming complete di

1) Calculate the freezing point of the following solutions, assuming complete dissociation.          c. 5.2% NaNO3 by mass (in water)          d. Calculate the boiling point of th…

1) Calculate the heat transferred to the system when 1.00 mol of a perfect gas e

1) Calculate the heat transferred to the system when 1.00 mol of a perfect gas expands reversibly at a constant temperature of 25°C so that its volume doubles. 2) The constant pre…

1) Calculate the inventory turnover using the following data for the current yea

1) Calculate the inventory turnover using the following data for the current year 2014 Net sales on account during 2014 $ 500,000 Cost of merchandise sold during 2014 330,000 Acco…

1) Calculate the mass defect (in amu) for bismuth-209 if the exact mass of this

1) Calculate the mass defect (in amu) for bismuth-209 if the exact mass of this atom is 208.980383 amu? The exact mass of a proton is 1.007276467 amu and the exact mass of a neutr…

1) Calculate the masses of Ca(NO 3 ) 2 x4H 2 O (s) and KIO 3(s) required tomake

1) Calculate the masses of Ca(NO3)2 x4H2O(s) and KIO3(s) required tomake 10 g of Ca(IO3)2(s). Calculate theamount of Ca(NO3)2 x4H2O(s) needed so that the Ca2+ isin excess of the i…

1) Calculate the molar mass of a compound if a solution of 12.0g dissolved in 80

1) Calculate the molar mass of a compound if a solution of 12.0g dissolved in 80.0g of water freezes at -1.94 C. (Kf water= 1.86 C/m) Answer is supposed to be 144g/mol but how do …

1) Calculate the molarity of each of the following solutions. Part A 0.30 mol of

1) Calculate the molarity of each of the following solutions. Part A 0.30 mol of LiNO3 in 6.32 L of solution Express your answer using two significant figures. Part B 71.8 g C2H6O…

1) Calculate the molarity of the solution. (Assume a density of 1.05 g/mL for th

1) Calculate the molarity of the solution. (Assume a density of 1.05 g/mL for the solution. (Assume a density of 1.05 g/mL for the solution.) Calculate the molarity, molality and …

1) Calculate the momentum of an electron traveling 46.9% the speed of light. Rep

1) Calculate the momentum of an electron traveling 46.9% the speed of light. Report answer in kg(m/s) to 3 significant digits. Do not put units in answer box. 2)Which quantum numb…

1) Calculate the number of grams of oxalic acid dihydrate, H 2 C 2 O 4 .2H 2 O,

1) Calculate the number of grams of oxalic acid dihydrate, H2C2O4.2H2O, that are needed to prepare 250.0 mL of 0.15N solution. (When the crystals are dissolved, the water in the h…

1) Calculate the pH and find the fraction of dissociation of 0.5 M benzoic acid.

1) Calculate the pH and find the fraction of dissociation of 0.5 M benzoic acid. 2) Find the pH and the fraction of association of a 0.02 M 4-methoxyaniline solution. 3) Find the …

1) Calculate the pH of a 2.4 L buffer solution that contains 0.300 M of a weak a

1) Calculate the pH of a 2.4 L buffer solution that contains 0.300 M of a weak acid HA and 0.220 M of its conjugate base, A. The Ka of HA is 5.5x10 2) Assume 0.270 moles of HCl is…

1) Calculate the pH of a buffer solution which is 0.36 M in HNO 2 and 0.39 M in

1) Calculate the pH of a buffer solution which is 0.36 M in HNO2 and 0.39 M in NaNO2. Ka of HNO2 = 4.6x10-4 at 25oC 2) An acetic acid/sodium acetate buffer is made that is 0.45 M …

1) Calculate the pH of a buffer solution which is 0.36 M in HNO 2 and 0.39 M in

1) Calculate the pH of a buffer solution which is 0.36 M in HNO2 and 0.39 M in NaNO2. Ka of HNO2 = 4.6x10-4 at 25oC 2) An acetic acid/sodium acetate buffer is made that is 0.45 M …

1) Calculate the pH of a solution that contains 7.8 x 10-6 MOH A) 1.28 B) 5.11 C

1) Calculate the pH of a solution that contains 7.8 x 10-6 MOH A) 1.28 B) 5.11 C) 12.72 D) 8.89 E) 9.64 2) Which of the following acids is the WEAKEST? The acid is followed by its…

1) Calculate the percent composition by mass (to 4 significant figure) of all th

1) Calculate the percent composition by mass (to 4 significant figure) of all the elements in calcium phosphate [Ca3(PO4)2], a major component of bone %Ca? %P? %O? 2) Menthol is a…

1) Calculate the present value of $4,000 received five years from today if your

1) Calculate the present value of $4,000 received five years from today if your investments pay (Do not round intermediate calculations. Round your answers to 2 decimal places. (e…

1) Calculate the present value of $4,000 received five years from today if your

1) Calculate the present value of $4,000 received five years from today if your investments pay (Do not round intermediate calculations. Round your answers to 2 decimal places. (e…

1) Calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH

1) Calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH=10.26 Part A: What is the pH of a buffer prepared by adding 0.405mol of the weak acid HA to 0.608m…

1) Calculate the ratio of optic density versus viable cell. 2) Your teacher has

1) Calculate the ratio of optic density versus viable cell. 2) Your teacher has told you that this ratio is specific for this bacterial type only. Explain why? 3) How much is the …

1) Calculate the shortest wavelength associated with emitted photons in the Lyma

1) Calculate the shortest wavelength associated with emitted photons in the Lyman series. (Express your answer to four significant figures.)(In nm). 2)Calculate the highest energy…

1) Calculate the standard electrode potential difference (E°) of the Daniell cel

1) Calculate the standard electrode potential difference (E°) of the Daniell cell (at 25 °C) if pressure is 500 MPa. a) 1.099 b) 1.102 V c) 1.080 V correct answer 1.099 2) Using C…

1) Calculate the standard entropy change for the following reaction. 2N 2 (g) +

1) Calculate the standard entropy change for the following reaction. 2N2(g) + 6H2(g) ? 4NH3(g) 191.5 130.6 192.3 794.8 J/K?mol-rxn –129.8 J/K?mol-rxn –794.8 J/K?mol-rxn –737.2 J/K…

1) Calculate the standard free-energy change at 25 ?C for the following reaction

1) Calculate the standard free-energy change at 25 ?C for the following reaction using the table in the introduction: Mg(s)+Fe^2+(aq)?Mg^2+(aq)+Fe(s) Answer should be in J 2) Calc…

1) Calculate the terminal voltage for a battery with an internal resistance of 0

1) Calculate the terminal voltage for a battery with an internal resistance of 0.850? and an emf of 7.50V when the battery is connected in series with an 71.0?? resistor. V=  V Ca…

1) Calculate the value of R. Note that the curve passes through a grid intersect

1) Calculate the value of R. Note that the curve passes through a grid intersection point. (in ohm) 2) What can you tell about the maximum power dissipated in R? The maximum power…

1) Calculate the value or the ratio of items in the boxes 2) Show your work by s

1) Calculate the value or the ratio of items in the boxes 2) Show your work by specifiying the formula you used for each of these calculations. 3) For $ values, no need to display…

1) Calculate the volume of 0.100 M HCl that is required to react with 50.0 mL of

1) Calculate the volume of 0.100 M HCl that is required to react with 50.0 mL of 0.100 M ammonia to form a mixture that has the desired pH. Hint: think of this as a titration prob…

1) Calculate the volume of 0.100 M HCl that is required to react with 50.0 mL of

1) Calculate the volume of 0.100 M HCl that is required to react with 50.0 mL of 0.100 M ammonia to form a mixture that has the desired pH. Hint: think of this as a titration prob…

1) Calculate the weight of an astronaut with mass M 70 kg on earth, and then, on

1) Calculate the weight of an astronaut with mass M 70 kg on earth, and then, on the moon 2) Look up the value of the Lagrange point L1 = 1.5 Million km, and marvel at the calcula…

1) Calculate the work, w , gained or lost by the system when a gas expands from

1) Calculate the work, w, gained or lost by the system when a gas expands from 15 L to 40 L against a constant external pressure of 1.5 atm. 1 L atm = 101 J 2)When 20.00 moles of …

1) Calculate total contribution margin for both scenarios (ie. chairs and tables

1) Calculate total contribution margin for both scenarios (ie. chairs and tables) in the table below: making the tables first? or making the chairs first, up to total demand. 2)  …

1) Callus: a) is found in endochondral areas of the long bone b) Is present in f

1) Callus: a) is found in endochondral areas of the long bone b) Is present in fetal bone c) Is a result of bone fracture d) Is a weak form of bone e) Is unmineralized bone 2) Mus…

1) Cambria owns equipment that cost $93,500 with accumulated depreciation of $64

1) Cambria owns equipment that cost $93,500 with accumulated depreciation of $64,000. Cambria asks $35,000 for the equipment but sells the equipment for $33,000. Compute the amoun…

1) Cambria owns equipment that cost $93,500 with accumulated depreciation of $64

1) Cambria owns equipment that cost $93,500 with accumulated depreciation of $64,000. Cambria asks $35,000 for the equipment but sells the equipment for $33,000. Compute the amoun…

1) Can 2-butanol be made from butanoic acid? Why or why not? 2) Starting with on

1) Can 2-butanol be made from butanoic acid? Why or why not? 2) Starting with only 1-propanol as your ONLY organic starting material, come up with a reaction scheme to produce: O …

1) Can a company like Microsoft prevent its products getting used without a vali

1) Can a company like Microsoft prevent its products getting used without a valid license where either they get shared or where I’ve seen registry hacks or even sharing of a VM wi…

1) Can someone give me a recursive algorithm that searches a tree(NOT BINARY) an

1) Can someone give me a recursive algorithm that searches a tree(NOT BINARY) and determines if it contains an element(int). You are given the root node and an int value to search…

1) Can the Federal Government discriminate among states when setting tax rates?

1) Can the Federal Government discriminate among states when setting tax rates? What document provides the answer to this question? (As an example of the previous point, include a…

1) Can you think of how the electromagnetic induction described by Faraday\'s La

1) Can you think of how the electromagnetic induction described by Faraday's Law might be used to make an electric motor? 2) What is the source of the observed force acting on the…

1) Capes Corporation is a wholesaler of industrial goods. Data regarding the sto

1) Capes Corporation is a wholesaler of industrial goods. Data regarding the store's operations follow: Sales are budgeted at $390,000 for November, $360,000 for Collections are e…

1) Capitalism (A) In the Wealth of Nations, Adam Smith proposes that among the f

1) Capitalism (A) In the Wealth of Nations, Adam Smith proposes that among the first economic exchanges were when a hunter killed a beaver but wanted to eat venison (from a deer).…

1) Carbapenems are a class of beta lactam antibiotics similar to penicillin. Des

1) Carbapenems are a class of beta lactam antibiotics similar to penicillin. Describe the mechanism of action for carbapenems. what is their target and how does it cause bacteria …

1) Carbon dioxide and water combined typically make up 1-3% of our atmosphere, a

1) Carbon dioxide and water combined typically make up 1-3% of our atmosphere, and yet, we are constantly monitoring the atmospheric content of CO2 and H2O. Why? Explain why they …

1) Carbonyl fluorideCOF2 is an important intermediate used in the production of

1) Carbonyl fluorideCOF2 is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluorid…