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The sludge has to be dried before it can be composted or otherwise handled.If sludge containing 70% water and 30% solids is passed through a drier and the resulting product contains 25 % water, how much water is evaporated per ton of sludge sent to drier.
The temperature of water at thermal equilibrium is 45*C. What was the initial temperature of the aluminum? The specific heat of water is 4.184 J/g *C & specific heat of aluminum is 0.0902 J/g*C
In a gas mixture, the partial pressures are nitrogen 0.559 ATM, oxygen 115 torr, and helium 0.296 mm Hg. What is the total pressure (in torr) exerted by the gas mixture
when benzene c6h6 ofnbsp 780 g of molar mass 78 gmolnbspcombinesnbsp with 750 ml of concentrated nitric acid 16 m and
a sample of hydrogen gas initially at 29C and 7.0 L iscooled until its final volume is 2.9 L. What is its final temperature
The rate constant for the first-order conversion of A to B is 3.33hr-1. How much time will be required for the concentration of A to reach 75% of its original value?
A solid hydrate weighing 2.691g was heated to drive off the water. A solid anhydrous residue remained, which weighed 2.259g. If the anhydrous residue has a formula weight of 282, How much moles of water are present in one mole of anhydrous salts
the common pain relievers asprin c9h8o4 acetaminophen c8h9no2 and naproxen sodium c14h13o3na are all available in
water as a solvent for TLC of amino acids have opposed to a 90:7:3 acetate/water/propanioc acid?
You are given a 1.56-g mixture of sodium nitrate and sodium chloride. You dissolve this mixture into 127 mL of water then add an excess of 0.537 M silver nitrate solution. You produce a white solid, which you then collect, dry, and measure. The wh..
The vapour pressure of a substance at 20.0 oC is 49.3 kPa and its enthalpy of vaporisation is 40.6 kJ mol-1. Estimate the temperature at which its vapour pressure is 80.0 kPa
the barometric pressure in a cavern was measured using a mercury barometer. a value of 28.2 inches of hg was obtained.
The first steps in the radioactive decay of 257Uuh involves the rapid and successive emission of 4 alpha particles
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