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The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 parts of solution. Mathematically, by mass: ppm =mg solute/g solution=mg solute/kg solution In the case of very dilute aqueous solutions, a concentration of 1.0 ppm is equal to 1.0 g of solute per 1.0 mL, which equals 1.0 g solution. Parts per billion is defined in a similar fashion. Calculate the molarity of each of the following aqueous solutions. a. 5.0 ppb Hg in H2O b. 1.0 ppb CHCl3 in H2O c. 10.0 ppm As in H2O d. 0.10 ppm DDT (C14H9Cl5) in H2O.
question 1what are the two main types of industrial ventilation which are used to control airborne contaminants in a
Assuming that there are no other significant side reactions, calculate masses of alcohol and ether produced, per 1000 kg of allyl chloride fed to the reactor.
Plot the system curve on the pump characteristic given in Figure and determine the operating point and pump efficiency. Properties of the fluid: density 900 kg/m3, viscosity 1.36 mN m-2 s.
(a) What is the minimum number of theoretical stages necessary to effect this separation? (b) What is the minimum extract reflux ratio?
Choose an initial guess for reactor temperature and pressure within the range provided and simulate the process described - Determine a metric to quantify the reactor performance then use this parameter to optimize the reactor temperature and pressu..
Select any process/chemical engineering topic of your interest and in about 1000 words explain how modeling is involved in its study and development. regards Mohammed
Present/display a research paper with the topic Introduction to Petroleum Engineering,giving preferences to the changes that are generated through the discipline in our world today.
Consider an inventor who claims to have invented a device which, upon activation, becomes colder when a liquid solution crystallizes spontaneously at constant pressure. Considering the laws of thermodynamics, should a government patent office deny hi..
air at 4mpa and 3000c enters a will insulated turbine operating at steady state with negligible velocity. the air
Show that the instantaneous frequency of the input FM signals is proportional to the number of zero crossings in the time interval t - (T1/2) to t + (T1/2), divided by T1, Assume that the modulating is essentially constant during this time interva..
Combustion of Ethane: Stack Gas Molar Composition, Ethane is burned with 50% excess air. The percentage conversion of ethane is 90%. Of the ethane burned, 25% reacts to form CO and the balance reacts to form carbon dioxide
In the batch preparation of an aqueous solution, the water is first heated to 80 °C in a jacketed, agitated vessel; 1000 Imp. gal. (4545 kg) is heated from 15 °C.
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