1. Element X has two isotopes. The first isotope has a natural abundance of 80% and has a mass of 60 amu. The second isotope has a natural abundance of 20% and has a mass of 64 amu. Is the average mass going to be closer to 60 or 64 amu and why? The

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.

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tobey

hypostyle hall;