The mass of an oven-dry sample of loose HMA paving mixture weighed in air is determined to be 3,060 grams.  The mass of the HMA sample in a pycnometer filled with water at 23°C is determined to be 5,641 grams.  If the pycnometer filled with only water at 23°C has a mass of 3,839 grams, what is the theoretical maximum specific gravity (Gmm) of the HMA paving mixture to two decimal places?

Q3: Tests were making on drying a food product carried out in an insulated tray. The temperature of drying air was 60°C. The dry weight of material was 3.765 kg and the surface area 0.186 m2. The test data are given in table below. Time(h) | Weight(kg) 4.944 4.885 4.808 4.699 4.554 4.404 4.241 | 4.15 14 22 3 | 4.2 0.4 0.8 5 7 12 25 4.019 3.955 | 3.955 a) Determine the equilibrium moisture content. b) Calculate the constant and falling rate constant.

Boiling Point Elevation/Freezing Point DepressionT = m KWhere: T = T(solution) - T(pure solvent) * m = (# moles solute / Kg solvent) Kb = boiling point elevation constant. Kf = freezing point depression constant. Kb and Kf depend only on the SOLVENT. Below are some common values. Use these values for the calculations that follow. Solvent Formula Kb (°C / m) Kf (°C / m) Water H2O 0.512 -1.86 Ethanol CH3CH2OH 1.22 -1.99 Chloroform CHCl3 3.67   Benzene C6H6 2.53 -5.12 Diethyl ether CH3CH2OCH2CH3 2.02   *Please note that ΔT as defined above will be a negative number for freezing point depression. Therefore, Kf must also be given as a negative number.

An open graduated cylinder at 25 °C is filled with mercury and water. The height of mercury is 7.0 cm and the water is 5.6 cm. Calculate the pressure at the bottom of the test tube (kPa) if the atmospheric pressure is 755 mm Hg. (Specific gravity of mercury and water are 13.6 and 1.0 respectively). Report answer in kPa