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A charge of +10 Coulombs (not micro-coulombs) with a mass of 0.44 kg is initially moving in +y direction at 282 m/s, at the origin, in a uniform magnetic field of 2.01 Tesla directed in the -z direction. After exactly a half of period of motion, the magnetic field is changed in magnitude (not direction), and after another half period of motion it is located at x = -1.55 meters, y = 0 meters. What is the amount of the magnetic field after it changed in Tesla?
Would expect the percent error in the solid density to be higher or lower than the percent error in liquid density. Explain why
Calculate the minimum wavelength of light (in nm) that could break an oxygen-oxygen double bond given that it takes 499 kJ to break on mole of these bonds.
A sample of CaCO3 and MgCO3 weighed 2.21 g is ignited to constant weight of 1.152 g . what is the composition of mixture ? also calculate the volume of CO2 evolved at 0 oc and 76 cm of pressure .
Find out which conjugate acid is more stable. c) Offer a structure based rationale for the observed difference in basicity. d) Circle the more basic nitrogen in the structure below. The structure is 4-Dimethylaminopyridine.
There are three different possible structures known as isomers for a dibromoethene molecule, C2H2Br2. One of them has no net dipole moment, however the other two do. Depict a structure for each isomer. Comprise H atoms.
Problem- Calculate the pH of a solution made by mixing 33.0 mL of 0.340 M NaA (Ka for HA = 1.00 x10^-8) with 26.4 mL of 0.100 M HCl.
At what temperature is the reduction of tungsten(VI) oxide by hydrogen to give metallic tungsten and steam spontaneous? The standard heat of formation of WO3(s) is -843 kJ/mol, and its standard molar entropy is 76 J(K mol).
When the following reaction is balanced in acid solution using the lowest possible whole number coefficients, the coefficient of H+ will be: S8 + NO3- --> S4O62-+ NO2
a certain first-order reaction has a rate constant of 3.90times10-3 at 45. how many minutes does it take for the
What is the pH of pure water at 40 degrees C if the Kw at this temperature is 2.92 x 10 to the -14th
a .483 mol sample of graphite was heated with 2.14 mol oxygen gas to form carbon dioxide. graphite is the limiting
Write a two page report about one of the Nobel Prize Winners of Chemistry for the past 10 years. (So that means between 2007-2016.)
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