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A buffer solution is made from 10 mL of 0.1 M acetic acid and 20 mL of 0.2 M sodium acetate. To the solution 5 mL of 0.8 M HNO3 is added. What is the pH of the resulting solution? Ka for acetic acid is 1.8 × 10-5.
A beaker containing 250 mL of a 0.500 M solution of acetic acid COOH) is added to 125 mL of a 0.850 M solution of sodium carbonate. The reaction that ensues produces carbon dioxide, sodium acetate COONa), and water. How many grams of carbon dioxid..
Cell Biology Problem - Molecular structure and chemical forces. Identify positions of carbon atoms. Note that hydrogens not explicitly shown
1. A chemistry 1411 student mixed 1.488 grams of Zn with 1.503 grams of S8. The unbalanced equation for this reaction is
A quantity of 0.20mole of carbon dioxide was heated to a certain temperature with an excess of graphite in a closed container until the subsequent equilibrium was reached
What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.305mol of NaA in 2.00L of solution
Calculate the volumetric size of a water molecule in vapor, assuming 1 mole of the vapor occupies 22.4 L, as if the vapor were an ideal gas. Give answer in angstroms, two significant digits.
In non-ionic compounds, the two primary sources of intermolecular forces are permanent dipoles and temporary dipoles. Explain what causes each of these types of dipoles to form.
Which set of atoms is correctly arranged in order of increasing electronegativity (lowest electronegative atom listed first)
Barbituric acid, HC4H3N2O3.... Its pKa is 4.01. What is the [H+] and pH of a 0.044 M solution of H-Bar
The volume of 350. mL of gas at 25C is decreased to 125 mL at constant pressure. What is the final temperature of the gas
It required 16ml of a sodium hydroxide solution titrated against a standard solution of 0.79g of potassium hydrogen phthalate in water to reach equivalence point. What is the molarity of the sodium hydroxide?
What is the molar concentration of chloride ion in the final solution? (assuming complete dissociation) 2) What is the percentage yield if 122.5 mg of a light blue-green solid is collected after 100.00 mL of this solution is combined with 25.0 mL ..
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