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1) 20 kg/min water at 20º C is mixed adiabatically with 40 kg/min water at 80 ºC
1) 20 kg/min water at 20º C is mixed adiabatically with 40 kg/min water at 80 ºC. What is the outlet water temperature? Select one: a. 80 °C b. 60 °C c. 50 °C d. 70 °C 2) Steam at…
1) 222 g of water at 87°C & 326 g of glycerin at 33°C are poured into a 347 g co
1) 222 g of water at 87°C & 326 g of glycerin at 33°C are poured into a 347 g copper cup at 2°C. Assuming these three make up a closed (or isolated) system, determine the fina…
1) 23 Na + ? 23 Na + 1 H 2) 59 Co + 1 n 56 Mn+ ? 3) ? + 2 H 240 Pu + 4) 249 Es +
1) 23Na + ? 23Na + 1H 2) 59Co + 1n 56 Mn+ ? 3) ? + 2H 240 Pu + 4) 249Es + 1n 161 Gd + 2 1 n+ ? Okay...two …
1) 28.92mL of NaOH are required to titrate .5982 g of KHP to the phenolphthalein
1) 28.92mL of NaOH are required to titrate .5982 g of KHP to the phenolphthalein endpoint. 22.41mL of the same NaOH solution are needed to titrate 25.00mL of the HCL solution to t…
1) 28/0.1x500x10= 14000000 = 1.4 x 10^6 2) 28/0.1= 280 = 2.8 x 10^2. [(0.1)/(0.1
1) 28/0.1x500x10= 14000000 = 1.4 x 10^6 2) 28/0.1= 280 = 2.8 x 10^2. [(0.1)/(0.1+9.9)]^5 = 10^-10 = 10^10. (2.8x10^2)x(10^10)=2.8x10^12 I dont know what answer is correct or if I …
1) 2A B + C Two trials of the above reaction are run with the same initial conce
1) 2A B + C Two trials of the above reaction are run with the same initial concentration of A. The first trial is performed at 25oC and the second at 35oC. If the rate constant at…
1) 2A B + C Two trials of the above reaction are run. The concentration of A in
1) 2A B + C Two trials of the above reaction are run. The concentration of A in the second trial is three times that in the first. It is found that the initial rate of the reactio…
1) 2C8H18 ( g ) +25O2 ( g ) 16CO2 ( g ) +18H2O ( g ) A)After the reaction, how m
1) 2C8H18(g)+25O2(g)16CO2(g)+18H2O(g) A)After the reaction, how much octane is left? 2)The Haber-Bosch process is a very important industrial process. In the Haber-Bosch process, …
1) 2Fe(s)+3Cl2(g)--> 2FeCl3(s) ?H= -687.6 kJ and ?S= -440.3 J/k at 253 K and 1 a
1) 2Fe(s)+3Cl2(g)--> 2FeCl3(s) ?H= -687.6 kJ and ?S= -440.3 J/k at 253 K and 1 atm The standard enthalpy change for the reaction of 1.55 moles of Fe (s) at this temperature wou…
1) 3.00 g of p-aminophenol is reacted with 5.0 mL of acetic anhydride (density-
1) 3.00 g of p-aminophenol is reacted with 5.0 mL of acetic anhydride (density- 1.08 g/mL) to form acetaminophen and acetic acid as per the reaction below. What is the theoretical…
1) 3.0kg of water at 34?C is mixed with 3.0kg of water at 70?C in a well-insulat
1) 3.0kg of water at 34?C is mixed with 3.0kg of water at 70?C in a well-insulated container.Estimate the net change in entropy of the system. Express your answer to two significa…
1) 362.11 g of O2 are contained in a 3.00 L high pressure tank at a temperature
1) 362.11 g of O2 are contained in a 3.00 L high pressure tank at a temperature of 186°C. What is the pressure of the gas in torr? 2) A gas has a given volume. The moles of gas ar…
1) 4 drops of 6M HCl solution are added to the unknown solution and no precipita
1) 4 drops of 6M HCl solution are added to the unknown solution and no precipitate 2) The pH of the solution from (1) is raised to 9.5 by the addition of 6M NH3 solution. A cloudy…
1) 4 pts. 2) 4 pts. 3) 4 pts. In C++ what type of function is preferred to a mac
1) 4 pts. 2) 4 pts. 3) 4 pts. In C++ what type of function is preferred to a macro? What is the benefit of accessor functions? Circle all of the items that the compiler examines i…
1) 4-Nitrophenol has a pKa of 7.16. 3-Chlorobenzoic acid has a pKa of 3.82. p-Cr
1) 4-Nitrophenol has a pKa of 7.16. 3-Chlorobenzoic acid has a pKa of 3.82. p-Cresol has a pKa of 10.26. You will need the following information: The pKa of HCl is –7; pKa of carb…
1) 4. What is the first step in performing risk management? 2) What practice hel
1) 4. What is the first step in performing risk management? 2) What practice helps address a risk? 3) What ongoing practice helps track risk in real time? 4) In the seven domains …
1) 4pts. From p. 867. Rancher Jane is thinking of changing from cattle to Americ
1) 4pts. From p. 867. Rancher Jane is thinking of changing from cattle to American bison (Bison bison) to capitalize on the market for lean and more healthy meat, but she needs to…
1) 5 points: An open channel is one in which the liquid flows with a free surfac
1) 5 points: An open channel is one in which the liquid flows with a free surface su True or false? 2) 5 points: best hydraulic section for uniform flow requires a maximum wetted …
1) 50 litres of a gas at 0 degrees celsuis are heated to 127degrees celsuis. Wha
1) 50 litres of a gas at 0 degrees celsuis are heated to 127degrees celsuis. What is the final volume? The pressure remainsconstant. 2) calculate the density of CO2 gas at STP (in…
1) 51 samples were analyzed, and the sample mean was 9.7 ounces. Can you determi
1) 51 samples were analyzed, and the sample mean was 9.7 ounces. Can you determine the standard deviation of the sample? D) 0.017 2) How do we interpret the p-value for this test?…
1) 56.0 mL of 3.80 M sodium hydroxide is combined with 42.0 mL of 1.00 M magnesi
1) 56.0 mL of 3.80 M sodium hydroxide is combined with 42.0 mL of 1.00 M magnesium chloride. What mass in grams of solid forms? 2) Sodium thiosulfate, Na2S2O3, is used as a fixer …
1) 62, 52, 52, 52, 64, 69, 69, 76 For the given sample data, find – the standard
1) 62, 52, 52, 52, 64, 69, 69, 76 For the given sample data, find – the standard deviation. 8.64581__________ P15 ______________ The percentile rank of a score of 64 _____________…
1) 70.0 grams of Gold at 100.0 °C is added to 20.0 grams of water at 20.0°C in a
1) 70.0 grams of Gold at 100.0 °C is added to 20.0 grams of water at 20.0°C in an insulated container. The final temparature of he mixture is 33.0 °C. The specific heat of water i…
1) 8 marks] Give a big-O estimate for the number of operations, where an operati
1) 8 marks] Give a big-O estimate for the number of operations, where an operation is a comparison, print or a multiplication, used in these segments of algorithms Ignore comparis…
1) 8 pts. In the table below write code to create and allocate the memory for tw
1) 8 pts. In the table below write code to create and allocate the memory for two arrays of 6 doubles. One array should be a static variable. One array should be a dynamic variabl…
1) 80 kg vampire and 250kg werewolf clash during the Feat of Strength part of th
1) 80 kg vampire and 250kg werewolf clash during the Feat of Strength part of the annual celebration of Festivus. The werewolf velocity just before the clash is 20m/s and is direc…
1) > are left shift and right shift operator in C. Assuming a is a 32 bi
1) << and >> are left shift and right shift operator in C. Assuming a is …
1) == means a. Set value to b. A test for equality c. Is not equal to d. An erro
1) == means a. Set value to b. A test for equality c. Is not equal to d. An error in entering code 2) What does int() do? a. Displays a message on screen b. D…
1) ?Choose from the following the statement(s) that is/are true (i) Two permanen
1) ?Choose from the following the statement(s) that is/are true (i) Two permanent magnets always attract each other. (ii) If a magnet attracts an object, it is certain that the ob…
1) A $2000 tax levied on the maker of MRIs cars will cause: Select one: a. an up
1) A $2000 tax levied on the maker of MRIs cars will cause: Select one: a. an upward movement along the supply curve as the price of MRIs rises. b. a downward movement along the s…
1) A $34 stock pays a continuous dividend of 9%. The continuously compounded ris
1) A $34 stock pays a continuous dividend of 9%. The continuously compounded risk-free rate is 8%. What is the price of a prepaid forward contract that expires 12 months from to…
1) A 0.000195M solution of [FeSCN]^+2 has an aborbance of 0.725. What would be t
1) A 0.000195M solution of [FeSCN]^+2 has an aborbance of 0.725. What would be the concentration of another solution of the same complex ion whose aborbance is 0.554. Assume both …
1) A 0.0545 kg chunk of an unknown metal that has been in boiling water for seve
1) A 0.0545 kg chunk of an unknown metal that has been in boiling water for several minutes is quickly dropped into an insulating StyrofoamTM beaker that contains 0.198 kg of wate…
1) A 0.0641 M solution was prepared by dissolving copper wire (AW = 63.546) in n
1) A 0.0641 M solution was prepared by dissolving copper wire (AW = 63.546) in nitric acid and diluting to volume in a 100mL volumetric flask with distilled water. What was the ma…
1) A 0.075 kg arrow is fired horizontally. The bow string exerts anaverage force
1) A 0.075 kg arrow is fired horizontally. The bow string exerts anaverage force of 65N on the arrow over a distance of 0.90m withwhat speed does the arrow leave the bow? 2) A 100…
1) A 0.100 mole quantity of a monoprotic acid HA is added to1.00 L of pure water
1) A 0.100 mole quantity of a monoprotic acid HA is added to1.00 L of pure water. When equilibrium is reached, the pH ofthe solution is 3.75. What is the value of Ka for theacid H…
1) A 0.11-kg baseball traveling in a horizontal direction with a speed of 19 m/s
1) A 0.11-kg baseball traveling in a horizontal direction with a speed of 19 m/s hits a bat and is popped straight up with a speed of 15 m/s. (a) What is the change in momentum (m…
1) A 0.14-kg baseball is dropped from rest from a height of 2.0 m above the grou
1) A 0.14-kg baseball is dropped from rest from a height of 2.0 m above the ground. What is the magnitude of its momentum just before it hits the ground if we neglect air resistan…
1) A 0.1475M solution of Ba(OH)2 was used to titrate the acetic acid (C2H4O2=60.
1) A 0.1475M solution of Ba(OH)2 was used to titrate the acetic acid (C2H4O2=60.05) in a dilute sample. The results are tabulated below. 2C2H4O2+Ba(OH)2=Ba(C2H3O2)+2H2O sample Sam…
1) A 0.1475M solution of Ba(OH)2 was used to titrate the acetic acid (C2H4O2=60.
1) A 0.1475M solution of Ba(OH)2 was used to titrate the acetic acid (C2H4O2=60.05) in a dilute sample. The results are tabulated below. 2C2H4O2+Ba(OH)2=Ba(C2H3O2)+2H2O sample Sam…
1) A 0.200-kg ball is loaded into a popgun.The ball is loaded by compressing a s
1) A 0.200-kg ball is loaded into a popgun.The ball is loaded by compressing a spring 0.185 m. The spring isinitially not compressed, then, as it is compressed, the forceincreases…
1) A 0.23 g sample of an unknown monoprotic acid is titrated with 0.11 N NaOH. 2
1) A 0.23 g sample of an unknown monoprotic acid is titrated with 0.11 N NaOH. 23.89 mL of NaOH is required to reach the equivalence point. What is the molar mass of this acid? 2)…
1) A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 29
1) A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 29 m high. When it hits the ground at the base of the cliff the rock has a speed of 27 m/s. (a) Assum…
1) A 0.30 kg ball is thrown straight up into the air with an initial speed of 13
1) A 0.30 kg ball is thrown straight up into the air with an initial speed of 13 m/s. Find the momentum of the ball at the following locations. a)What is the max height in kg*m/s …
1) A 0.900 kg block is attached to a spring with spring constant 13.0 N/m. While
1) A 0.900 kg block is attached to a spring with spring constant 13.0 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it …
1) A 1-inch schedule 40 pipe has 48gpm flowing in a dry pipe system. Calculate t
1) A 1-inch schedule 40 pipe has 48gpm flowing in a dry pipe system. Calculate the friction loss per foot. The inside diamtere of the pipe is 1.049-inches. My answer is 0.92 psi/f…
1) A 1-year discount bond with a face value of $1,000 was purchased for $900. Wh
1) A 1-year discount bond with a face value of $1,000 was purchased for $900. What is the yield to maturity to 2 decimal places? What is the yield on a discount basis to 2 decim…
1) A 1.0 mL aliquot (sample) is taken from a 1.0L solution. Which of the followi
1) A 1.0 mL aliquot (sample) is taken from a 1.0L solution. Which of the following is/are true when comparing the 1.0 mL solution to the 1.0L solution? Choose all that are true. -…
1) A 1.0-L buffer solution is 0.125 M in HNO2 and 0.180 M in NaNO2. Part A Deter
1) A 1.0-L buffer solution is 0.125 M in HNO2 and 0.180 M in NaNO2. Part A Determine the concentrations of HNO2 and NaNO2 after addition of 1.5 g HCl. Express your answers using t…
1) A 1.3 cm × 1.3 cm × 1.3 cm box with its edges aligned with the x y z -axes is
1) A 1.3 cm × 1.3 cm × 1.3 cm box with its edges aligned with the xyz-axes is in the electric field E =(350x+140)i^N/C, where x is in meters. What is the net electric flux through…