The Ksp can be used to find the concentration of hydroxide ions, and thus determine the pH given a concentration of of aluminum. At what pH will precipitation of Al(OH)3 begin if 4.40 lb of aluminum sulfate, Al2(SO4)3, is added to 1950 gallons of water (with a negligible change in volume)

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

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wher is the rest of the question