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A proton in a linear accelerator has a de Broglie wavelength of 115 rm pm. What is the speed of the proton?
Calculate the values of E for the cell when the following volumes of the ce4+ titrant hav been added:(Activity coefficients may be ignored as they tend to cancel when calculating concentration ratios). 1.50 ml 20.0 ml 39.0 ml 40.0 ml 44.0 ml 80.0 ..
In the lab you make 10-5.5 M solutions of HCl and of NaOH using pure distilled deionized water. What would be the pH after the solutions equilibrate with the atmosphere
Draw the molecule by placing atoms on the grid and connecting them with bonds
The equilibrium constant for a reaction is 0.48 at 25 o C. What is the value of ?G o at this temperature?
Calculate delta H in kilojoules for the reaction, assuming that the heat capacity of the calorimeter is 776J/C , that the specific heat of the final solution is the same as that of water [(4.18 J/(gxC) ], and that the density of the solution is 1...
What is the molarity of a HCl solution that contains 6.13 g of HCl in 352 mL of solution?
How many Valence electrons does a balanced atom of Sodium have? What is the net charge on each ion?
The balloon is designed to continue its ascent to an altitude of 30 km, where it bursts, releasing a package of meteorological instruments that parachute back to Earth.
In an acid base titration a 25mL portion of a solution containing sulfuric acid (H2SO4) was titrated with a 0.200M NaOH(aq). write the chemical equation for this particular titration
waters heat of fusion is 80. rmcalg its specific heat is 1.0matrixrm fraccalg cdot circc and its heat of vaporization
A 184-mg sample of Na2CO3 is dissolved in H2O to give 3.00L of solution. What is the concentration of Na+ in parts per million (ppm)?
In the lower atmosphere, oxygen gas is converted to ozone gas by energy provided from lightening as shown in the reaction below and the value of the equilibrium constant for this reaction at 25C is Kc = 1.7 x 10^-56.Equation
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