What is the ph of a 015 m solution of the weak base ammonia
What is the pH of a 0.15 M solution of the weak base ammonia (NH3)? The Ka of the conjugate acid is (NH4) is 5.6e-10.
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Given the spectrum X(f) of an analog signal x(t), sketch the spectrum of its sampled version x[n], assuming a sampling rate of 50, 40, and 30 Hz. (a) X(f) = rect(f/40) (b) X(f) = tri(f/20)
A gaseous reaction occurs at a constant pressure of 50.0 atm and releases 67.9kJ of heat. Before the reaction, the volume of the system was 8.80L . After the reaction, the volume of the system was 2.80L .Calculate the total internal energy change
A satellite is placed in orbit 8.40 x 10^5 m above the surface of the planet Jupiter. Find the orbital speed of the satellite
a motorcycle battery delivers around 10 Volts DC, at an ampacity of about 500 Amps. this voltage goes through ignition (transformer) and it delivers about 30 KV to each spark plug. What is the turn ratio (Ns/Np) and the resulting ampacity on secon
Write at least a half page about speech sounds (the use of words) in regard to your purposed design. Which speech sounds should be included, their purposes, and justification for their use.
A 2.50 x 10^-6 F capacitor is charged to 754V and a 6.80 x 10^-6 F capacitor is charged to 563V, Determine the potential difference across the second capacitor
One piece of copper jewelry at 108 degrees Celsius has exactly twice the mass of another piece, which is at 44 degrees Celsius. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the ca
A PN junction has a doping concentration of 10^15, 10^16, or 10^17 cm-3 on the lightly doped n-side and of 10^19 cm-3 on the heavily doped p-side. Obtain series of curves of 1/(C^2) vs. V, where V rages from -4V to 0V in steps of 0.5 V.
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