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In a series LRC AC circuit, the resistance is 19 Ohm, the inductance is 21 mH, and the capacitance is 14 micro Farads. Calculate the max current in the circuit
Draw the structural formula of 3,4-diethyl-3-hexene. If more than one isomer of this compound exists, then both isomers must be drawn
Two slits with a separation of 8.5 x 10-5 m create an interference pattern on the screen 2.3 m away. what is the linear distance from the central bright fringe to the tenth dark fringe above it
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5.
A solid disk (r=0.20 m, M=0.50 kg) is suspended fro the end of an L=0.30m long rod (m=0.30 kg, cross-sectional area of 2.0 cm^2). WHAT IS THE PENDULUM'S PERIOD FOR SMALL ANGLE OSCILLATIONS
A particle of mass m is in an infinite square well of width L. determine the allowed energies for the system
Determine the following characteristics of the titration curve for 25.0 mL of 0.400 M NH3(aq) titrated with 0.335 M HI(aq). (For NH3, Kb = 1.8x10-5.) Enter scientific notation as 1.23E4.
Your adventurous friend Lola goes bungee jumping. She leaps from a bridge that is 100 m above a river. WHat is her height above the river at her lowest point
The arrangement of the orbitals is the same in a multielectron atom and a single-electron atom. In the Li atom, the 3s, 3p, and 3d orbitals have different energies. The He atom has one electron each
Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution containing sodium iodide: 2NaI(aq) +Cl2(g) arrow I2(s) +2NaCl(aq) How grams of iodide, NaI, must be
The combustion of propane may be described by the chemical equation. C3H8(g) + 5O2(g) arrow 3CO2(g) +4H2O(g) How many grams of O2(g) are needed to completely burn 95.5 g of C3H8(g)
A mass , m=1.75 kg, is held between two springs having spring constants 30 N/m and 75 N/m respectively, Find the angular frequency, w, for small oscillations
what is the maximum wavelength of light that can be used to exhibit the photoelectric effect with lithium metal? it requires 279.7 kJ to remove one mole of electrons from Li atoms
In a 1cm cuvette, you measure a sample with an absorptivity constant of 10 L/mol•cm. The absorbance of the sample is 0.5. What is the concentration of the sample in moles/L
Electromagnetic wave 1 has a maximum electric field of 55 V/m, and electromagnetic wave 2 has a maximum magnetic field of 1.5 microtesla. Calculate the average intensity of the first wave
Carbon dioxide makes up approximately 0.04% of Earth's atmosphere. If you collect a 2.4 sample from the atmosphere at sea level (1.00 ) on a warm day (28), how many molecules CO2 are in your sample
Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by transmission lines. Estimate the magnetic field strength on t
Draw the structure(s) of all of the alkene isomers, C5H10, that contain a branched chain. Specify E/Z isomerism in your drawings when appropriate.
Calculate the [SCN-] solution A, where 5.7 mL of 2.910?3 M NaSCN is diluted to 44.0 mL with 0.1 M Fe(NO3)3. Next calculate the [FeSCN2+] in the solutions prepared by diluting volumes of solution A w
calculate the radius of the circular orbit if the magnetic field is B=1.7 and the velocity is 6.3x10^6. assuming it is 1 electron
A 2.00 kg frictionless block is attached to an ideal spring with force constant 314 n/m. Initially the block has a velocity of -3.77 m/s, Find the maximum force the spring exerts on the block
Two moles of an ideal diatomic gas have an initial pressure of 4:00 atm and initial volume of 16:0 L. What are the initial and final temperatures of the gas
What is the resulting pH when .005 moles of KOH is added to .1 L of buffer solution that is .100 M in H2PO4- and .100 m HPO4^2- and the Ka2 = 6.2x10^-8
If the equilibrium concentration of Fe3+, SCN-, and FeSCN2+ are 0.00140 M, 0.00140 M, and 0.000414 M, respectively, calculate the equilibrium constant for Fe3+ + SCN- FeSCN2+.