Conjugate acid having a ph
A buffer that contains .39 M base B and 0.21 M of its conjugate acid BH+ has a pH of 8.95. What is the pH after 0.002 moles of HCl are added to 0.25L of solution
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A chemist dissolves 0.9 g of an unknown monoprotic (one acidic H) acid in water. She finds that 14.6 mL of 0.426 M NaOH are required to neutralize the acid.
An aqueous vinegar sample contains 4.4% acetic acid by mass and has a density of 1.006 g/mL. Calculate the amount of acetic acid in grams in 750 mL of this vinegar.
When titrating 0.15 M HCl with a calcium hydroxide solution of unknown concentration, 35 mL of acid are required to neutralize 25 mL of the base.
A beam is made by bonding a brass core to a steel tube and is subjected to a bending moment as shown. Knowing that b = 5.3 in, t = 0.1 in, Ebr = 14,500 ksi and Est = 29,000 ksi.
78 mL of 2.5 M phosphoric acid is neutralized with 500 mL of potassium hydroxide. What is the concentration of the base?
If 358 mL of H2SO4 is neutralized with 60.0 mL of 1.50 M NaOH, what is the initial concentration of the acid?
A solution is prepared by dissolving 0.11 mol of acetic acid and 0.11 mol of ammonium chloride in enough water to make 1.0 L of solution.Find the concentration of ammonia in the solution.
A model rocket is launched straight upward. Its altitude y as a function of time is given by y = bt -ct2, where b = 82 m/s, c = 4.9 m/s2, t is the time in seconds, and y is in meters.
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