Find the ph of the buffer solution that contains hf and naf
What is the pH of 1.00L of the buffer solution that contains 0.100 M HF and 0.120 M NaF after 0.020 of HNO3 is added? The Ka of HF is 3.5 x 10-4, and so pKa = 3.46.
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What is the chemical formula for the possible precipitate? Look in your textbook for any necessary equilibrium constants.
A 8.00 m x 11.0 m swimming pool slopes linearly from a 1.00 m depth at one end to a 3.80 m depth at the other. What is the mass of the water?
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of 9 grams of argon is raised by 75 K under conditions of constant pressure. Assuming that argon is an ideal gas, how much heat is required?
The wind exerts a force of 153 N North on a sailboat, while the water exerts a force of 81 N West on the sailboat. What is the magnitude of the net external force on the sailboat?
Some people are very emotional, while others are very cool and calm. What is the reason for these differences in emotional reactivity? Why are men and women, on average, different in their views on sex?
A 100 mL sample of a 6.0 mol/L solution of H2SO4 is diluted to a final volume of 500 mL. What is the concentration of the diluted solution?
What is the angular velocity in rad/s? What is the angular displacement of the propeller in 1.50 s?
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