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Mixing the chelating reagent B with Ni(II) forms the highly colored NiB22+, whose solutions obey Beer's law at 395 nm over a wide range. Provided the analytical concentration of the chelating reagent exceeds that of Ni(II) by a factor of 5 (or more), the cation exists, within the limits of observation, entirely in the form of the complex. Use the accompanying data to evaluate the formation constant kt for the process
A heat pump operating at steady state provides 36,000 kJ/hr to maintain the temperature in a building at 22C. The heat pump operates with a coefficient of performance 75% that of a reversible cycle operating between the same thermal reservoirs.
a rocket is launched vertically upward. the fuel lasts 20 s and during this time the rocket has a uniform upward
determine the amount of gypsum created from the capture and conversion of sulfur during copper production from copper
what was its velocity during this time? (Hint: Take the origin to be the location of the radar.)
a carnot heat engine operates between 40c and 320 c. what is the thermal efficiency? if the work output is 200 kjkg
If the current through and the voltage across a component in an electric circuit are
SO3 has many uses including the production of sulfuric acid (H2SO4). A gas stream having the (molar) composition shown in the figure below is to be passed through a two-stage converter. The fractional conversion of SO2 to SO3 (per single pass) in the..
Consider a NACA 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. Calculate cl and cmc/4 When the geometric angle of attack is 4 degrees, what is the section lift coefficient? Where is the center of pressure?
Three children are standing on a 5×5-m raft. The weights of the children at Points A, B, and C are 375 N, 260 N, and 400 N, respectively. If a fourth child of weight 425 N climbs onto the raft, determine where she should stand if the other children r..
steam enters an adiabatic turbine at 8 mpa and 520 degc with a volumetric flow rate of 0.8 m3s and exits at 30 kpa. the
A unidirectional, continuously reinforced glass fiber composite has Vf=60 volume percent fibers in a matrix of epoxy. Glass has a Young's Modulus of E glass =70 GPas ; epoxy has a Young's Modulus of E epoxy = 2 GPas. Give numerical values for the Yo..
water at 20c flows through at 10cm inner dyameter pipe.a static pressure tap of a pilot tube at a cross section
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