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Calculate the pH of a buffer made with 0.50M phosphoric acid and 0.75M sodium dihydrogenphosphate. Ka = 7.5 x 10-3.
Compute the number of mL of 2.00M H2SO4 required neutralizing 125.5mL of 1.2M KOH
A 47.0 mL sample of gas in a cylinder is warmed from 28 degrees Celsius to 91 degrees Celsius. What is the final temperature?
Find the enthalpy change for the chemical reaction below PCl5(g) ----> PCl3 (g) +Cl2 From the following equations:
Total pressure in kPa 10 seconds after initiation of the reaction if initially there was 88.3kPa of pure N 2 O 5 vapor Enter the total pressure in kPa 10 minutes after initiation of the reaction.
sulfuric acid acts as a catalyst for making esters. Write an equation showing the production of Isoamyl alcohol
Calculate the relative amounts of 1-chloropropane and 2-chloropropane obtained by the radical chlorination of propane, using this relative rate of reactivity.
if you take a 12.5 mL portion of the stock solution and dilute it to a total volume of 0.600L what will be the concentration of the final solution?
What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with a pH of 2.50?
a student produces 2.73 g of a compound. She calculates the theoretical yield as 3.40 g. What is the percent yield
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At0?C, the volume of the gas is 248 mL. To what temperature must the gas be heated to occupy a volume of 479mL.
If I add 1.65 L of water to 112 grams of sodium acetate...What is the molality of NaC2H3O2 in this solution?
Which corresponds to approximately 2.65 * 104 mol of electrons at the voltage of a fuel cell and calculate how much heat energy is absorbed?
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