Q.1. For a dilute solution containing 2.5 g of a non-volatile non-electrolyte
sonte in 100g water, the elevation in boiling point 1 atm pressure is 2°C. Assuming concentration of solute is much lower
than then the concentration of solvent; determine the vapour pressure of the solution?

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)