Explain the concentration of barium ions
Determine the concentration of barium ions when precipitation is complete. Assume reaction is 100 percent efficient when a 20.0 ml sample of 0.200 M K2CO3 is added to30.0 mL of 0.400 M Ba(N03)2. Barium Carbonate precipitates.
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A solenoid of 2100 turn consists of a cross-sectional area equivalent to 8.0 cm2 and a length equivalent to 30 cm. The solenoid carries a current of around 4.0 A. (i) Compute the magnetic energy stored in the solenoid by using U = 1/2 LI2, where L
Silicon, having band gap of E = 1.1 eV, is doped so that the Fermi energy Ef is lowered by 0.23 eV. At a temperature of around 320 K, determine the majority charge carrier density in the relevant band, relative to the electron density in the valen
Sulfuric acid was added to this solution, which precipitated 2.52gof PbSO4. Assuming that all the lead was precipitated, what is the percentage of Sn in the sample which his having the molar mass of PbSO4 = 303.3 g/mol.
If the number of spots showing is 1 or 2, you win nothing. You are going to play the game twice.The probability that you win something on each of the two plays of the game is
A long pipe of 1.20 m is stopped at one end. Near the open end, there is a loudspeaker which is driven by an audio oscillator whose frequency can be varied from 10.0 to 5000 Hz. (Avoid any end corrections.) (i) Find out the lowest frequency of the
The CD has a 5% probability of being a smash hit and profiting $5.2 million, a 50% probability of being the modest success and profiting $0.9 million, and 45% probability of being the flop and breaking even. Determine expected earnings value of CD?
Determine the molarity of hydroxide ions in the solution produced when the 4.25 grams calcium metal is dissolved in enough water to make a final volume of 225 mL?
A simple generator consists of a coil having dimensions 1.0 cm x 1.0 cm which is rotated at 60 Hz in 1.0 T magnetic field. Determine how many windings (turns of wire) are required to produce a peak emf of 120 Volts?
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