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the molecular formula of c7h10o 3 degrees of unsaturation was shown to give peaks in the 1h-nmr at 13 ppm single 29 ppm
normalize the total energy eigenfunctions for the three-dimensional box in the intervals 0 x a 0 y b 0 z
002 grams of agno3 is dissolved in 10 l water what is its concentration as parts per milliona 2 x 10-6b 2 x 10-4c 2 x
Calculate the thermal efficiency and the net power developed, in horsepower, if the turbine and the compressor isentropic efficiencies are each 100%.
Nitrogen expands at constant pressure, and a heat loss of 2800 J occurs during the process. Determine the final temperature of nitrogen. Assume nitrogen to be an ideal gas with M = 28 g/mol and cp=1.
What is the minimum center-to-center spacing of the bolts that will allow them to be tightened with a standard 1/2-inch open-end wrench?
Neglecting friction in the reducer, what is torque available at the output of the reducer for which the system must be designed?
A 0.2 m^3 rigid tank initially contains refrigerant 134a at 1 MPa, saturated vapor. The tank is connected to a supply line that contains refrigerant 134a at 1.2 MPa, 30 deg C.
A campaign sign weighing 68 pounds is suspended from the middle of a cable stretched across a street between two buildings.
How does cracking pressure percentage change as the maximum pressure setting of the relief valve increases? Why? Explain the term pressure override as it relates to pressure control valves.
In addition to the analysis that you presented in (a), what features might you look for on the fracture surfaces to support your conclusion?
As the water is heated, the piston expands 3 cm upwards at constant pressure until it hits stops. Heat transfer continues until the pressure is 3 bars. Find the total heat transfer in J.
Evaluate the following: a)the mass of air inside the ball the pressure of the air inside the ball just when play begins.
A quantity of 1.922g of methanol (CH3OH) was burned in a constant -volume bomb calorimeter. consequently, the temperature of the water rose by 4.
Determine the pH for a titration curve relating to the titration of 57 mL of 0.27 M benzoic acid (C 6H 5COOH) with 0.2 M NaOH after 7 mL of the NaOH solution has been added. ( K a (C 6H 5COOH) = 6.
A lead storage battery needs sulfuric acid to function. the recommended minimum concentration of sulfuric acid for maximum effectivity is approximately 4.8M A 10 ml sample of battery acid requires 6
The spring constant is such that to compress the spring 100 cm a force of 360 kN is needed. At the end, the pressure in the cylinder is 7 MPa. Obtain: a) final state properties. b) the work done for
Find the solubility of argon in liquid ammonia at 20°C and 200 bars pressure. Using, rault's law and Antoine's equation e.g Also find the solubility of hydrogen and nitrogen in ammonia given the
Taking the average specific heat of the human body to be 3.6 kJ/kg-oC, determine the drop in the average body temperature of this person under the influence of this cold water.
If you purchased 2.81 \mu Ci of sulfur-35, how many disintegrations per second does the sample undergo when it is brand new? Express your answer numerically in disintegrations per second.
A helium-filled balloon of the type used in long-distance flying contains (1.3 107 L) of helium. Let us say you fill the balloon with helium on the ground where the pressure is 709 mm Hg and the tem
Reacting water with magnesium nitride produces ammonia (NH3) and magnesium hydroxide. If this process is 70% efficient, what mass of ammonia can be prepared from 19.5 kg magnesium nitride?
The mass of solute is dissolved in 15.0 g of cyclohexane instead of t-butanol. What is the expected freezing point change of this solution?
The empirical formula of a group of compounds is CHCl. Lindane, a powerful insecticide, is a member of this group. The molar mass of lindane is 290.8 g/mol. How many atoms of carbon does a molecule
Water at 20 degrees Celsius is flowing with velocity of 0.5 m/s between two parallel flat plates placed 1 cm apart. Determine the distances from the entrance at which the velocity and thermal bound