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When doing a sound experiment, you recorded the sound of a single frequency sound source when it was stationary. what was the frequency of the source
A short blast of sound with frequency 335 Hz is created by a speaker that projects the sound equally in all directions. what was the power of the blast
Determine the ionization constant of a 0.0070 aqueous ammonia solution with an OH- concentration of 3.46 x 10^-4 M.
A wave has a known propagation velocity of 4.32 m/s and a wavelength of 0.388 meters. What is the position equation of the wave
A 200 turn 10^-3 cross sectional area coil is immersed in a magnetic field such that the plane of the coil is perpendicular to the field. how much voltage is induced
Estimate the force exerted on your fingertip if you place it at this point. Assume area of the fingertip to be 1.4cm^2
Determine the Ka of a 0.1M solution of acetic acid in which the hydronium ion concentration is 1.35 x 10^-3 M
In this experiment, you bend your elbow and stack coins on top of your arm, Which coins are the easiest to catch
What is the pH of 0.0045 M solution of Aluminum Hydroxide. Al(OH)3 dissociates in a complicated why so I am not sure if I simply find the -log of the concentration
In a solution of NH3, the concentration of NH3 is 0.01 M, Kb is 1.8 x 10-5. What is the concentration of the hydroxide ion
If an unknown is water soluble, why is it unnecessary and potentially misleading to perform (and interpret) the result of the solubility of this unknown in 5% HCl.
How do the requirements that t and v are constant enter the derivation for delta Asys <0 for a spontaneous process
In the emission spectrum of helium, there are strong lines at wavelengths of 447.1 nm, 501.6 nm, and 587.6 nm. Using the Balmer-Rydberg equation, determine the values of nf for each emission.
Calculate the enthalpy change for the neutralization reaction. Calculate the experimental error compared to the accepted your value in question 2.
In a purely inductive circuit of 36 mH, the freq is 71 Hz and the maxium voltage is 317 V. Find the rms current in the circuit
A copper flask with a volume of 80 cm^3 is filled to the brim with olive oil. If the temp of the system is increased from 8C to 52C, how much oil spills
A cylnder holds .5 moles of an ideal gas at temp 334K. The gas expands isothermally from an initail volume of .03 m^3 to a final volume of .4m^3
This half cell is connected to a SHE half-cell. The measured potential for this cell is 0.476 V at 25 degree C. What is the experimental value of the solubility constant for silver oxalate
Two metal rods, silver and copper, are attached to a steam chamber with a temp 100 C, at one end and an ice bath ( 0 C ) at the other end. How much heat flows through the two rods in 60s
Calculate the number of moles of copper oxidized and moles of electrons that passed through the cell. Calculate the total charge (coulombs) that passed through the cell.
When a solution of sodium sulfate, Na2SO4, adjusted to a pH of 7 is electrolyzed, red litmus and a gas is evolved in the anodic chamber. In the cathodic chamber, red litmus turns blue and a gas is a
Without referring to the appendix, calculate the quantity (Delta rG - Delta rA) for the following reaction at 298 K: C(s) + CO2(g) --> 2CO(g) Assume ideal gas behavior.
How many moles of oxygen are in an inflated basketball? Pressure in the ball is 181kPa, the temp is 310K, and diameter of ball is 36 cm
A 2.0g metal ball that carries a charge of 10uC is placed into an electric field, what is the electric potential difference between point A and point B
Now consider a sample that consists of four spheres, each with a different mass: blue mass is 4.00 g, red mass is 3.75 g, green mass is 3.00 g, and yellow mass is 1.25 g. Calculate the average mass