Suspected case of food tampering involving a soft drink containing FD&C Yellow Dye No. 5 has occurred. It is suspected that part of the contents was dumped and a household cleaner was added to it. Explain how one might use spectrophotometry to prove tampering by analyzing the evidence and an unadulterated sample.

hey there!

boiling point is the temperature at which the vapor pressure of the liquid equals atmospheric pressure. the vapor pressure of solvent molecules is decreased when a solute is added, so a higher temperature is required to increase the number of solvent molecules in the gas phase above the liquid.

at the freezing point, the vapor pressures of the solid and liquid are equal; a lower temperature is needed to reduce the number of solvent particles above the liquid.

hope this you

tobey

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