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If you have 500 ml of .15M Formic Acid, what is the pH of this solution? What is the pKa? How many grams of Sodium Formate would you have to add to raise the pH to 3.85? How many grams of HCl would you have to add to lower the new pH by .2?
Assume that the specific heat of the substance at P=25 bar is temperature independent and equal to c_p=4.20 kJ/kg*K. Sketch the P-v and T-s diagrams of the cycle.
What is the relationship between pressure and temperature at constant volume in a pressure chamber
given that the heat of fusion of water is -6.02 kjmol that the heat capacity of h2o is 75.2 jmolk and that the heat
An insulated tank is divided into two equal parts. Both halves contain the same ideal gas but one is at 300K and 2 bar while the other one is at 1 bar.
what is the hybridization of the central atom in
In the standardization of potassium permanganate why is it unnecessary to add an indicator during the titration. Why is the solution of sodium oxalate acidified with sulfuric acid before titration
Explain which of salts hydrolize in aqueous solution- CH3COONa, NiCL2, Ca3(PO4)2 state ionic equations for the hydrolysis reactions. Forecast the pH of the solution
already have a solution that contains 10 mmol of acetic acid. how many millimoles of acetate will you need to add to this solution? the pKa of acetic acid is 4.74
It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the water (dehydration). A 46.06 gram sample of a hydrate of MnSO4
oxygen gas reacts with powdered aluminum according to the following reaction 4als 3o2 g 2al2o3s. how many liters of
A piston has an external pressure of 8.00 torr How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.450 liters.
A 64-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 823 N. What is the acceleration of the elevator
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