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The electric field at the surface of a charged, solid, copper sphere with radius 0.160m is 3400N/c , directed toward the center of the sphere.
What is the potential at the center of the sphere, if we take the potential to be zero infinitely far from the sphere?
Write the balanced formula unit equation for the reaction of dinitrogen pentoxide, N2O5, with water to form an acid. What is the sum of the coefficients in the balanced equation?
How many grams of CuCl2 are required to prepare 1220. g of a 1.65% (by mass) CuCl2 solution?
If the titrant has a molarity of 0.2750 M and there are 40.00 mL of analyte present, what is the molarity of the analyte?
Find out How many grams of gasoline will fill a 12.5gal tank if a particular brand of gasoline has the density of 0.737 g/mL at the temperature of 25 degree Celsius?
At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) Kc=53.3 At this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present ..
What is the mass of the solid NH4Cl formed when 73.0 g of NH3 are mixed with an equal mass of HCl? What is the volume of the gas remaining, measured at 14.0° C and 752 mmHg?
After growing up your protein in E. coli and centrifuging the cells to collect the cell pellet, at what temperature should you store the cells?
Detailed analysis of the 369 and 295 cm-1 bands show them to arise from totally symmetric modes. Show that the Raman spectrum is consistent with a trigonal-bipyramidal geometry.
Concrete used in road construction is reinforced using steel bars in a grid, known collectively as "rebar." After many years, rebar will begin to corrode, and the concrete will weaken.
For each of these three chemicals, state how the "parity rule" is (or is not) obeyed by the MS data. If this question cannot be answered for a chemical, state briefly why not (for example, what additional data would be needed or why the situation ..
During an experiment, a student adds .339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solution\'s final volume is 100.0 mL,
A solution of HNO3 is standardized by reaction with pure sodium carbonate: 2H+ + Na2CO3 ---> 2Na+ + H2O + CO2 A volume of 23.66 ± 0.04 mL of HNO3 solution was required for complete reaction with 0.814 ± 0.0009 g of Na2CO3
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