Stearic acid has a freezing point of 7120 c and a kf of
Stearic acid has a freezing point of 71.20 C and a Kf of 4.890C/m. A 400.0 g quantity of stearic acid to which 50.0 g of an unknown is added has a freezing point of 68.00C. Calculate the molar mass of the unknown.
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A weak acid HA (pKa = 5.00) was titrated with 1.00 M KOH. The acid solution had a volume of 100.0 mL and a molarity of 0.100 M. Find the pH at Vb = 0 mL, Vb = 10.1 mL and Vb = 12.0 mL
A skater with an initial speed of 7.10 m/s stops propelling himself and begins to coast across the ice, eventually coming to rest. How far will the skater travel before coming to rest
how many students would the college need to enroll in the first year if they would like to make a profit of at least 5% of revenue?
Suppose we have a junction diode operating at a constant temperature of 300K. With a forward current of 1mA, the voltage is 600mV. Furthermore, with a current of 10mA,the voltage is 700mV. Find the value of n for this diode.
Does the office renovation and subsequent lease agreement appear to be a good investment investment for the company? (Hint: Compare the cost of renovation with the present value of the lease payments. Use a 10 percent discount rate for the analysi
One solenoid is centered inside another. The outer one has a length of 54.0 cm and contains 6800 coils, What is the mutual inductance of these solenoids
All solutions to the differential equation y'-2y=0 should also be solutions to the differential equation y''-ay'+ay=0. Determine the constant a such that this is true.
Two ideal diodes are placed in series, pointing in opposite directions. What is the equilvalent circuit for the combination What is the equilvalent circuit if the diodesare in parallel and pointing in opposite directions
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