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Compute the expected pH of the acetate buffer and compare it with the pH determined by the pH meter. If they are different, suggest possible explanations. Compute the total concentration of the buffer.
When a voltage of 30 V is applied to the heater for 3.0 min, a constant current of 2.5 A is observed. The calorimeter temperature increases from 20.00C to 25.59C. Calculate C_bomb for the calorimeter. Assume 2000.0 g of water in the bucket.
If 158 of wet hydrogen is collected over water at 24 and a barometric pressure of 736 , how many grams of hydrogen have been consumed.
What is the molar mass of adrenaline in a solution of 0.64 g of adrenaline in 36.0 g of CCl4 elevates the boiling point by 0.49?
Enough of a monoprotic acid is dissolved in water to produce a 0.0131 M solution. The pH of the resulting solution is 2.48.
What was the ?t for the metal c) how much heat flowed into the water d) taking the specific heat of water to be 4.18J/g°C, calculate the specific heat of the metal e) what is the approximate molar mass of the metal
Draw a mechanism to demonstrate how pyridine catalyzes the hydrolysis of acetic anhydride to two molecule of acetic acid. Is this reaction reversible? why or why not? Show all non-bonding electrons on each atom, circle positive charges
At constant pressure and 25 degrees celcius a sample of gas occupies 4.5 liters. At what temperature will the gas occupy 9.0 liters?
a test tube containing a mixture of kcl kclo3 and mno2 having a total weight of 23.584 g was heated to compose the
Photosynthesis in plants generate sugars such as glucose (C6H12O6) and oxygen from carbon dioxide and water. how many kilograms of oxygen are produced from photosynthesis of 330 kg of carbon dioxide
What is the molarity of a permanganate solution if it takes 10.0 mL of 0.200M iron(II) solution to completely react with 15.7 mL of the permanganate solution
the density of a certain aqueous solution is 1.17gml and the solution is 3.57 by mass naoh. how many ml of this
Assume an arteriole has a radius 0.005 cm and a length of 0.05cm. Assume the pressure drop across thei aretiole is 50 mm Hg. Calculate the flow Q in cubic meters per second through this arteriole. Assume viscosity of blood is 0.04 P
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