n this week’s forum, please critically discuss the structural characteristics of steel and steel-concrete composite bridges. Include in your discussion the advantages steel offers to the construction of large structures and why it is preferred as a structural material in bridges.
A certain aqueous solution of sucrose at 25oC has a vapor pressure of 23.34 torr (a unit for pressure). The vapor pressure of water at 25oC is 23.76 torr. Find the activity of the solvent water in this sucrose solution.
