Concentration of ammonia in the solution
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.
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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.
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
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 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.
Calculate the wavelength in picometer of gamma ray radiation whose frequency is 9.74 × 1019 Hz. Express answer in scientific notation.
0.2 M HCl is used to neutralize 20 mL of 0.35 M NaOH. How many moles of H+ are needed to neutralize the OH-?
A horizontal curve was designed for a four-lane highway for adequate SSD. Lane widths are 12 feet, and the superelevation is 0.06 and was set assuming maximum fx.
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