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m-Xylene enters the groundwater system. The average concentration of m-Xylene in the groundwater is 100 ppm. If the groundwater at the top of the saturated zone is in equilibrium with air, calculate the concentration of m-Xylene in the air in mol/L
A gas occupies 4.04 L at 860 torr and 10C. What volume will it fill if the pressure is changed to 731 torr and the temperature is raised to 43 0C?
How many moles of (NH4)2SO4 are there in 100.00 g of ammonium sulfate? How many ammonium ions are in 100.00 grams of ammonium sulfate? Use Avogadro's number, 6.0221 x 1023 ions/mol.
Electrophilic addition reaction of conjugated dienes that occur at high temperatures and/or long reaction times (reversible conditions) are said to be under
When a clear aqueous solution of calcium chloride (CaCl2) is mixed with a clear aqueous solution of sodium carbonate (Na2CO3), a white solid precipitate forms.
A horse of mass 218 kg pulls a cart of mass 238 kg.The acceleration of gravity is 9.8 m/s2 .What is the largest acceleration the horse can give if the coefficient of static friction between the horse's hooves and the road is 0.842.
Devise a suitable reaction sequence in which each of the following compounds can be prepared from benzene in good yield. Assume ortho and para isomers are separate from one another, and use any other reagents you desire.
The concentration of potassium ions inside a nerve cell is around 20 to 30 times that outside the cell. Calculate the potential difference between inside
Aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating. Suppose a can contains a residual amount of gas at a pressure of 755mm Hg and a temperature of 25 C
A 150 -g sample of water is cooled from 30 degrees C to 15 degrees C, thereby losing approximately 9420 J of heat. What is the change in E in J.
Determination of Molecular SO2 Needed for Protecting Wine, You have just finished fermenting a wine and the pH = 3.7. You need 2mg/L "molecular" SO2 to protect the wine. What level of free SO2 do you have to add to achieve the level of the molecul..
Calculate the activity coefficient of glucose in this solution if the solution freezes at -0.66 C.
find out that how many mL of this suspension must be given to an infant with 21lb weight if the recommended dose =10 mg/kg body weight?
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