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A buffer solution contains 0.386 M NH4Cl and 0.316 M NH3 (ammonia). Determine the pH change when 0.064 mol HBr is added to 1.00 L of the buffer
Compute the moment of inertia of the molecule in kg m 2 . And also determine the greatest wavelength of the radiation that can excite the molecule into rotation.
What is the freezing point of a solution of ethylene glycol, a nonelectrolyte, that contains 81.0 g of (CH2OH)2 dissolved in 505 g of water?
At constant pressure, 660 mL of nitrogen at 37°C are changed to 725 mL What is the new temperature of this gas?
Ozonolysis from unknown compound, A compound, A, c6h8, yields a single organic product, B, upon ozonolysis and absorbs two moles of hydrogen on catalytic hydrogenation to give C.
Determine the concentration of the original Na 2 C 2 O 4 solution and disodium oxalate in the presence of excess acid.
3H2 + N2 -> 2NH3. At 200 degrees C in a closed container, 1.00atm of nitrogen gas is mixed with 2.00atm of hydrogen gas. At equilibrium, the total partial pressure is 2.00atm.
Determine ΔG for this reaction When A is full into a cylinder at a pressure of 9.89 atm and the system is permitted to come to equilibrium, the final pressure was 15.94 atm.? Express your answer in units of kJ/mol
What is the volume of 295 mL of a sample of gas at 52.0°C and 710. mm Hg if the conditions are adjusted to STP
A unknown liquid is insoluble in water and soluble in cyclohexane and alcohol with a boiling point of 110 C What is the substance?
a quanity of gas exerts a pressure of 98.6 kpa at a tempature of 22 degrees celcius. If the volume remains unchanged, what pressure will it exert at -8 degrees celcius
A 0.30 M solution of sucrose (C12H22O11) at 37oC has approximately the same osmotic pressure as blood. What is the osmotic pressure of blood?
We do not have a reliable method for determining the number of molar equivalents of bleach being added because commercial preparations vary in concentration and "oxidizing power
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