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Calculate the amount of heat [kcal] released when 50.0 g of steam at 100 °C hits the skin, condenses, and cools to a body temperature of 37 °C.
The liquid rate used is twice the minimum, the equilibrium relationship can be represented as yA=9.95 xA then determine what is HOG, operating line relationship, NOG and packed height of the column?
The enthalpy change for converting 1.00 mol of ice at -50.0 degrees C to water at 70.0 degrees C is ____ Kj. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-k and 1.84 J/g-k, respectively.
How many grams of the strong acid HClO4 must be combined with water to make 400 ml of a solution with a pH of 1.5.
Calculate the concentration of Calcium (MW 40.078 g/mol) in the H2O in units of gram per 100 mL and calculate the concentration of Calcium (MW 40.078 g/mol) in the H2O in units of gram per 100 mL.
0.60 g of hydrogen chloride (HCl) is dissolved in water to make7 L of solution. What is the pH of the resulting hydrochloric acid solution.
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3 ). How much limestone in kilograms is required to completely neutralize a 3.8 x109 lake with a pH of 5.5.
Historically, the solid residue that is left after the Dichloromethane -or methylene chloride (CH2Cl2 )solution is evaporated has a lower melting point that its literature value, due to impurities.
What proportions of ethanol and water should be mixed in order to produce 100 cm3 of a mixture containing 50 percent by mass of ethanol.
Explain what it means that the atomic mass of naturally occurring Ag, is a mixture of its two isotopes forms, is 107.868 u.
When 2-chloro-2-methylbutane is treated with a variety of strong bases, the products always seem contain two isomers (A and B) of formula C5H10.
Estimate the pH at the equivalence point of an HOAc solution if 25.5 mL of this solution required 37.5 mL of 0.175 M NaOH to reach the equivalence point (Ka = 1.8 x 10-5).
How much 0.20mol/L sodium hydroxide should be combined to this buffer to raise the pH to 5.1? If the same amount of 0.20 mol/L sodium hydroxide were combined to 250mL of deionized H 2 O, Determine New pH?
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