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In an aqueous solution, the concentration of H3O+ is the same as the concentration of H+. If you know the pH of the solution, then that's equal to 10^(-pH).
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How do you calculate the moles of water?
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How you calculate the kinetic energy of the particle projected vertically upwards?
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Use the Rydberg formula. A useful article about this is on Wikipedia. It is called "Hydrogen spectral series".
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A spacecraft orbits an unknown planet at a distance of 5.2 X 107 m from its center the period of its orbit is 52 hrs?
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Which formula you will use to calculate The memory address of fifth element of an array?
a
What formula would you use to calculate the density of an object?
mass/volume
