Which statement about the spectrophotometric analysis of red 40 dye is true?
select one:
a. the intensity of the color of the solution is indirectly proportional to concentration of the red 40 dye.
b. the calibration plot is a graph of concentration of red 40 dye (y-axis) versus absorbance (x-axis).
c. absorbance = slope x concentration.
d. if there is no red 40 dye present in the solution, the absorbance will be one.

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

i can ! i just need to know what the paragraph is! : p