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How do you calculate the pH and pOH of an aqueous ammonia solution that has an OH - concentration of 1.9 x 10 -3 ? What is the concentration of the Ammonium ion?
A mixture of helium and neon gases is collected over water at 28.0 C and 745 mmHg. if the partial pressure of helium is 368 mmHg, what is the partial pressure of neon?
Use VSEPR theory to describe the bonding in propene. Also, include bond angles in your explanation.
How do you do the problem- The pKa for lactic acid, CH3CH(OH)COOH, is 3.86. At physiological pH (7.40), which is the predominant form
The K a of hypochlorous acid (HClO) is 3.00 x10^-8 what is the pH at 25.0 degrees C. of an aqueous solution that is 0.0200 M in HClO
Using the equation Fe2O3+2Al-->2Fe+Al2O3, how many grams of Al are needed to completely react with 135 g Fe2O3
Write out the balanced net ionic equations representing the reactions that occur when iron (III) in water reacts with: A) Hydrochloric Acid.
If a buffer solution is 0.230 M in a weak acid (Ka = 3.8 × 10-5) and 0.410 M in its conjugate base, what is the pH
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 92% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9* 10-12.]
A wood sample is obtained from a tree that originally grew in 1804 A.D. If the initial rate of decay in 1804 A.D. can be assumed to be 13.56 decays per minute, how many 14C disintegrations have occurred in the sample since that time
A student attempted to identify an unknown compound by the method used in this experiment. she found that when she heated a sample weighing 0.4826 g, the mass barely changed
Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid dissociates in water: C6H5COOH C6H5COO- + H+
There are conventions for naming and constructing the formulas for acids and bases just as there are for other types of compounds. There are 3 main rules for naming acids.
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