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A buffer is made using 45.0 mL of 0.750 M HC3H5O2 and 55.0 mL of 0.700 M NaC3H5O2.What volume of 0.10 M NaOH must be added to change the pH of the original buffer solution by 2.5%? Ka for this acid is 1.3 x 10
When 20 mL of a 315 mL stock solution containing 2.2 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution.
Application of ideal gas law - How high can you raise the temperature of the gas without bursting the vessel?
Imagine that you have a 6.50L gas tank and a 2.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
the pressure exerted on a 240 mL sample of hydrogen gas at a constant temperature is increased from .428 atm to .724 atm. What will the final volume of the sample be.
How many gms of H2O must be combined to 519.5 gms of methanol at 20°C to have an osmotic pressure of 408 mm of Hg? Methanol density = 0.8921 g/mL.
A 5.00 % m/m glucose solution has d = 1.02 g/mL. What is the mass of glucose in 362 mL of the solution.
What volume of O2 gas (in L), measured at 782 mmHg and 25C is required to completely react with 53.2 g Al
Determine the volume of .450M NaPO4 is needed to precipitate all the lead(II) ions from 190.0mL of .550M Lead(II) nitrate?
In a calorimeter, 100 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed.
What is the difference between a strong acid and a weak acid. Calculate [H30+] in each aqueous solution at 25 C and classify each solution as acidic or basic one.
Determine how long will it take for the concentration to decrease to 0.13 mol/L express your answer in seconds.
Calculated what is the pressure in atm using the van der Waals' equation for Oxygen gas under these conditions? For O 2 , it is given a = 1.360 L2atm/mol2 and b = 3.183E-2 L/mol.
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