Three hundred gallons of a mixture (sg = 0.877) containing 75.0 wt% ethanol and 25.00% water and a container-load of another mixture (sg = 0.952) containing 40.0 wt% ethanol and 60.0% water are blended to produce a mixture containing 60.0 wt% ethanol. Determine the volume of the 40% ethanol solution needed to achieve the desired product.

Answer 2-3

210 imperial gallons of a mixture containing 50 wt% ethanol and 40% water (density = 0.893 g/cm3) and a quantity of a 35 wt% ethanol-water mixture (density = 0.931 g/cm3) are blended to produce a mixture, containing 65 wt% ethanol. Draw a schematic of the process, labelling all stream. Calculate the volume of 35% mixture required in litres.

Q.1) In the experiment, you wrap a piece of copper wire around your magnesium strip to suspend the magnesium inside the eudiometer. Why is copper wire a good choice for this task? Group of answer choices It conducts electricity very well It reacts strongly with the acid It does not react with the acid It is much heavier than Mg   Part B) A 45 mL sample of a dry gas is collected at 380 torr and 25 °C. Calculate the volume of the gas sample (in mL) at STP.   Part C)Using the data provided in Table 3 in the handout (also provided below), calculate the vapor pressure of water at 21.0 °C. Table 3:  Vapor pressure of water at various temperatures T (˚C) P (mmHg) T (˚C) P (mmHg) T (˚C) P (mmHg) 0 4.58 16 13.63 26 25.21 5 6.54 18 15.48 28 28.35 10 9.21 20 17.54 30 31.82 12 10.52 22 19.83 40 55.3 14 11.99 24 22.38 50 92.5