Ammonium chloride (NH₄Cl) is a salt that dissolves completel…
Ammonium chloride (NH₄Cl) is a salt that dissolves completely in water. The ammonium ion (NH₄⁺) acts as a weak acid with a Ka of 5.1 × 10⁻10. If a 0.050 M solution of NH₄Cl is prepared, what is the pH of the solution at 25°C?
Read DetailsAt a certain temperature, the following reaction reaches equ…
At a certain temperature, the following reaction reaches equilibrium: N2(g)+3H2(g)⇌2NH3(g) At equilibrium in a 2.00 L container, the concentrations are: [N2]=0.400M [H2]=0.500M The equilibrium constant at this temperature is Kc = 0.040. What is the concentration of NH3 at equilibrium?
Read DetailsFormic acid, HCOOH, has a Ka value equal to ~1.8 x 10-4. A s…
Formic acid, HCOOH, has a Ka value equal to ~1.8 x 10-4. A student is asked to prepare a buffer with a pH of 3.2 from a 0.05 M HCOOH and a 0.05 M NaCOOH solution. How many milliliters of the NaCOOH solution should they add to 15 mL of the HCOOH solution to make the buffer?
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