Archimedes used a physical method of identifying if the crown is pure gold or a mixture of gold and silver. He determined the density of the crown and compared it to the density of pure gold and pure silver. By weighing and determining the volume of the crown, he determines the density and compares it to the density of gold. If it does not match, then the crown is a mixture of gold and silver. Also, if we wanted to identify the percentage of the gold and silver in the crown he can use the density of both gold and silver and determine the percentages present in the crown. <span />
Electrical energy is converted to light energy
The [H+ ] and pH of a 0.400 M solution of hypobromous acid are mathematically given as
<h3>What is the [H+ ] and pH of a 0.400 M solution of hypobromous acid?</h3>
Generally, the equation for Chemical Reaction is mathematically given as
HBrO---><----H+BrO
Therefore
In conclusion, the pH value is
pH=-log(h+)
pH=-log(3.35*10^{-5}M)
pH=4.575
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(7.3 x 10^29 atoms) / (24 atoms/molecule) / (6.022 x 10^23 molecules/mol) =
5.1 x 10^4 mol C6H12O6