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How many grams of ethylene glycol (automobile antifreeze),C2H6O2 dissolved in 3.15kg of water is needed to lower the freezing point of water in an automobile radiator to 23.0 C?
The plant manager would like to dump the wastewater into a nearby river. The local water quality control regulatory agency will allow at most discharge of 30,000 lb/h at a maximum salt content of 0.5%. Draw a flow diagram. Complete a DOF analysis ..
what has the lowest freezing point, pure water, aqueous .60m glucose, .60m sucrose, .20m iron iodide or .50m potassium chloride
A compound contains only carbon and nitrogen and is 46.2% carbon by mass. A gaseous sample of the compound has a density of 2.05 g/L at 927 torr and 105 °C
When determining Keq for the Fischer esterification of benzoic acid with methanol, how will your calculation be affected if you lose crystals of benzoic acid on the filter paper during vacuum filtration?
The flow of the Florida Current (part of Gulf Stream) through the straights between Key West and Cuba is 150 x 106 m3/sec. The mass concentration of salt in seawater is about 35,000 ppm. What is the flux of salt in the Florida Current in tonnes/se..
The measured potential was 0.0330 V. What is the concentration of X when the potential is 0.0480 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
Diamond is the hardest known substance. Fe metal is soft sunstance. Using your knowledge of bonding, explain why diamond is hard
Combustion analysis of toluene, a common organic solvent, gives 4.12mg of {\rm{CO}}_2 and 0.959mg of {\rm{H}}_2 {\rm{O}}. If the compound contains only carbon and hydrogen, what is its empirical formula
What mass of solid sodium hypochlorite (molar mass = 74.44 g/mol) should be added to 1.0 L of 0.255M hypochlorous acid to make a buffer with a pH of 7.54?
In a reaction mixture at equilibrium, the partial pressure of NO is 119 torr and that of Br2 is 175 torr. What is the partial pressure of NOBr in this mixture? Kp=28.4 at 298 K.
Which of the following combinations of n and l represent real orbitals and which are impossible? 4s 3p 3f 2p
An insulated tank is divided into two equal parts. Both halves contain the same ideal gas but one is at 300K and 2 bar while the other one is at 1 bar.
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