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A 0.081M solution of a monoprotic acid has a percent ionization of 2.34%. Find the value of Ka and pH for the acid.
What is the age of a rock whose Argon 40 / Potassium 40 ratio is 1.55. The half life of Potassium 40 is 1.28 x 10^9 years.
How much heat does your body lose when 1.8 of sweat evaporates from your skin at 25 ? (Assume that the sweat is only water.) The heat of vaporization of water at 25 is 44.0 .
A solution contains 0.000750 M La^+3 and 0.00385 M Ba^+2. Sodium iodate (NaIo3) is added to from precipitate. Which metal will begin to precipitate out first
An empty flask's mass is 17.4916g, its mass is 43.9616g when filled with water at 20.0c (d=0.9982g/ml). The density of "heavey water" at 20c is 1.1053g/ml. What is the mass of the flask when filled with heavy water at 20.0c
customers complain that the plants they buy look "different" when they get them home. The electric bill to run the store is excessive.
Write a balanced chemical reaction for the formation of a free fatty acid from a soap molecule under acidic conditions. Why would the formation of free fatty acids inhibit the cleaning ability of the soap
Suggest a mechanism for the hydrolysis of n-butyl bromide to n-butanol. Include the elementary steps and indicate the rate determing step
We use standard addition methods when our sample has matrix effects which are hard to duplicate in a blank. Let's again find the amount of Pb+2 in a blood sample. A 5.00 mL blood sample containing lead yielded a signal of 0.712 units.
Predict whether the following reactions will be spontaneous in acidic solution under standard conditions.
1.0 ml of a 3.60 x 10-4 m solution of oleic acid is diluted with 9.00 ml of petroleum ether forming solution a. then
an aqueous soultion of uknown salt of ruthenium is electrolyzed by a current of 2.50 amps passing for 50 min. if 2.618 g Ru is produced at the cathode, what is the charge on the ruthenium ions in solution?
In the reaction below, how many liters of CO2 gas are produced from the combustion of 55.0 L of CH4 gas?
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