What is theka of the conjugate acid of the unknown base
0.300 moles of an unknown monobasic weak base are added 1.50L of water. The resulting solution has a pH 8.6. What is theKa of the conjugate acid of the unknown base? Assume no change in volume.
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Specifications require that the mean burning rate of a propellant must be 50cm/s with standard deviation 2cm/s. A random sample of 25 is selected and the average burning rate of 51.3 cm/s.
A sphere is moving with speed v as shown, and it impacts the inclined face of a wedge. Determine the wedge angle, theta, as a function of L and e, the sphere's coefficient of restitution.
When the electric field is turned off, the charged particle travels on a circular path whose radius is 4.05 cm. Find the charge-to-mass ratio of the particle.
To construct a 95% confidence interval estimate for the difference in the average resistance between regular and alloyed wires, a random sample of 14 regular wires yielded a mean of 0.136 ohm and a standard deviation of 0.004 ohms, and a random sa
The magnitude of the net magnetic force experienced by the two-wire unit is 3.13 N. What is the current I?
What is the efficiency of the turbine and the entropy generated per kilogram of steam? d) if the ambient temp is 25C and the ambient pressure is 1 bar.
What is the hydroxide ion concentration of an aqueous 0.00370Mcaffeine solution? The most basic nitrogen atom in caffeine has aKb of 4.1x10-4
A coil carries a current and experiences a torque due to a magnetic field. The value of the torque is 91.5% of the maximum possible torque. (a) What is the smallest angle between the magnetic field and the normal to the plane of the coil?
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