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P1.W Electrostatics
1. What is the dierence between induction and charging by conduction?
2. How does the force between charged objects vary with separation?
3. What is an equipotential surface? Can two equipotential surfaces intersect?
4. Describe a Faraday ice pail. What happens if a charge object is placed in the pail?
5. What does an electrometer measure? What happens when the ZERO button on the electrometer is pressed?
6. What are the charge and charge density on the surface of a conducting sphere of radius
r = 0:15m if its potential is V = 200V
Problem- In a chemical analysis, the percent transmittance of a compound is measured to be 25.8% in a cell with a path length of 1.5cm. If the molar absorptivity of that compound is 4170cm, what is the compounds concentration
A 47.0 mL solution of 0.155 M iron (III) perchlorate is prepared. This solution is then titrated with 18.4 mL of 0.250 M potassium hydroxide. What is the concentration of iron (III) perchlorate that remains in the solution
During a strenuous workout, an athlete generates 1950.0kJ of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
If the concentration of an aqueous magnesium hydroxide solution in a test tube were given as (7.35x10^-1) microgram/mL what is the molarity of the magnesium hydroxide in the test tube
The flexibility, strength, hardness, and malleability of carbon steel is affected by a heating and cooling process called.
Enthalpies are relative quantities measured as changes from some comparative states. The enthalpies of formation of elements in their standard states at 25 degrees celcius are taken to be zero by convention
Why would the cell potential be higher with the addition of 6 M Na2S solution to .001 M of CuSO4 (compared to 6 M NH addition to .001 M CuSO4)
Molar Concentration of Copper (II) Nitrate, A 25.00 mL sample containing Cu2+ gave an instrument signal of 23.6 units (corrected for a blank). When exactly 0.500 mL of 0.0287 M Cu(NO3)2 was added to this solution
The vapor pressure of pure methanol, CH3OH, at 30 C is 160. torr. How many grams of the nonvolatile solute glycerol, C3H5(OH)3, must be added to 131. g of methanol to obtain a solution with a vapor pressure of 133. torr.
Why does LiBr have a stronger lattice energy then LiF Why does NaCl have a higher lattice energy then Mg3N2. ( I thought it would LiF because smaller ion and Mg3N2 because greater charge)
Draw the structure of the aromatic organic product formed from the reaction of the following compound with
Question- when 35.6L of ammonia and 40.5L of oxygen gas at STP burn, nitrogen monoxide and water form. After the products return to STP, how many grams of nitrogen monoxide are present?
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