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How much calcium bicarbonate (kg/day) will need to be added per day in water with alkalinity of 30 mg/L CaCO3 (assume for simplicity only bicarbonate alkalinity is present) if 794 kg of (Al2(SO4)3 x 18H20 is added per week to treat water with coagulation/flocculation in a water treatment plant with capacity of 1 million gallons daily.
Consider the following coagulation/flocculation (unbalanced) reactions occur:
Al^3+ + HCO3- --> Al(OH)3 + CO2
We have learned that valence bond theory helps us to predict s and p bonding in molecules. All of the following statements about molecular bonding are true, but which statement best summarizes the most basic premise for bonding in a molecule?
In a particular redox reaction, Cr is oxidized to CrO42 and Ag is reduced to Ag. Complete and balance the equation for this reaction in acidic solution. Phases are optional.
If 142 x 10 power of 6 metric tons of SO 2 are released per year by fossil fuel combustion, the mass of sulfur in this amount of SO2
at 900K the following reaction has kp=.345: 2SO2(g)+O2(g)-->2SO3(g) Partial pressures of SO2 is .150 and of O2 is .455. What is the equilibrium partial pressure of SO3?
Propose a structure for the compound with the following formula that is consistent with the IR and 1H NMR data shown:
At 25o C, the solubility of magnesium hydroxide Mg(OH)2 in water is 0.00429 grams per Liter. Calculate the Ksp for the compound. [NOTE that there are two moles of OH- per mole Mg(OH)2.]
Hydrogen sulfide decomposes according to the following equation, for which Kc = 0.00011 at a given temperature. 2 H2S(g) 2 H2(g) + S2(g)
What is the chemical formula of the salt produced by the neutralization of nitric acid with calcium hydroxide?
The reaction is allowed to reach equilibrium. At equilibrium the number of moles of B is 18.32. Calculate the equilibrium constant for the reaction A (g) + 2B (g) reacting with 3 C(g)
find the density of a substance with a mass of 51.2g and a volume of
Consider a particle of mass m in a uniform gravitational field. Its potential energy is E(h) = mgh,where h is the height above sea level and g is the earth's gravitational constant, g = 9:8 m/s2.
how much heat in kj is required to warm 12.0 g of ice initially at -13.0 degree celcious to steam at 114.0 degree
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