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Calculate the freezing-point depression and osmotic pressure at 25°C of an aqueous solution containing 8.6 g/L of a protein (molar mass = 9.0 104 g/mol) if the density of the solution is 1.0 g/cm3.
The specific heat of aluminum is 0.902 J at 25C. How much heat, in kJ, does it take to raise the temperature of a 12.0 g chunk of aluminum from 15.5C to 35.5C
NO is produced in the atmosphere at moderately low partial pressure by high temperature combustion. What is its fate as cooling occurs? To help address the question, calculate the equilibrium constant at 298 K and 1300 K for each reaction
electrons having this speed would need to be treated as waves in atoms because the wavelength is on the order of the size of atoms.
How many grams of IO2F are needed to react completely with 150.0 g of BrF3? 3IO2F(s) + 4BrF3(l) → 3IF5(l) + 2Br2(l) + 3O2(g)
A 97 gram solution of silver nitrate contains 14 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
draw a dot and cross diagram to show the bonding in ch2f2. your diagram only needs to show the outer shell
Helium is compressed isothermally and reversibly at 100 celcius from a pressure of 2 to 10 bar
Calculate Keq for 2 moles of electron(s) in each half-reaction and a standard potential of 0.23 V
Greg Corp. reportedrevenue of $1,100,000 in its accural basis income statement for the year ending June 30, 2007. Under the cash basis, gregg should report revenue of?
Describe how the pseudo rate constant, k', is determined from the experimental data? Also describe how k, the true rate constant, is determined from the experimental data
The molar heat capacity of silver is 25.35 . How much energy would it take to raise the temperature of 8.80 of silver by 10.2
A sample of 5.0mol CO2(g) is originally confined in 15dm^3 at 280 K and undergoes adiabatic expansion against a constant pressure of 78.5 kPa until the volume has increased by a factor of 3.0.Calculate q,w,delta T,delta U,and delta H
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