Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Palladium (II) forms an intensely colored complex at pH 3.5 with arsenazo III at 660 nm.33 A meteorite was pulverized in a ball mill, and the resulting powder was digested with various strong mineral acids. The resulting solution was evaporated to dryness, dissolved in dilute hydrochloric acid, and separated from interferents by ion-exchange chromatography. The resulting solution containing and unknown amount of Pd(II) was then diluted to 50.00 mL with pH 3.5 buffer. Ten-milliliter aliquots of this analyte solution were then transferred to six 50.00 mL volumetric flasks. A standard solution was then prepared that was 1.00×10-5 M in Pd(II). Volumes of the standard solution shown in the table were then pipetted into the volumetric flasks along with 10.00 mL of 0.01 M arsenazo III. Each solution was then diluted to 50.00 mL, and the absorbance of each solution was measured at 660 nm in 1.00-cm cells.
(a) Enter the data into a spreadsheet. and construct a standard-additions plot of the data.
(b) Determine the slope and intercept of the line.
(c) Determine the standard deviation of the slope and of the intercept.
(d) Calculate the concentration of Pd(II) in the analyte solution.
(e) Find the standard deviation of the measured concentration.
Steam at 80 bar, 440 0C, enters a turbine operating at steady state at a volumetric flow rate of 180 m3/min. The water exits the turbine in two streams, 20% as exits through a 0.25 m diameter pipe at 60 bar, 400 0C. The rest exits through a 1.5 m dia..
plot the velocity profile and find the location where the oil velocity is zero and
A thin walled tube with closed ends has an inside radius of 80mm and a wall thickness of 6 mm. It is subjected to an internal pressure of 20 MPa, a torque of 60 kN*m, and an axial compressive force of 200 kN. Determine the maximum normal stress and t..
A 25-mm-diameter, high-tension line has an electrical resistance of 10-4 !1/m and is transmitting a current of 1000 A. If ambient air at 10°C and 5 m/s is in cross flow over the line, what is its surface temperature?
How does public health personnels control the use of cigarettes?
A piston-cylinder assembly contains 2 lbm of water, initially at 100 lbf/in.2 and 400 F. The water undergoes two processes in series: a constant pressure process followed by a constant volume process. At the end of the constant volume process, the te..
resolve a vector a which has a magnitude of 50 units and a direction of 210 degrees into two vetors b and c. c is to be
calculate the power required to drive a steady-flow compressor if air flowing at a rate of 1kgs enters at 100kpa
during a race the dirt bike was observed to leap up off the small hill at a at an angle of 60o from the horizontal. if
r-22 in a pistoncylinder has mass 1 kg and temp. 10degc with a volume of0.02 m3 . initially state 1 the piston rests on
a desiccant is being used to remove water vapor from a stream of air with 90 rh at 50oc. the desiccant is a flat plate
at steady state a turbine is fed with 2 kgs of steam that has a pressure of 4 mpa and a temperature of 500 c .
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd