The following are the most common symptoms of a Chiari malformation. 1  However, each child may experience symptoms differently. In infants and older children born with this condition, symptoms may include: 2  Headaches. 3  Stiffness or pain in the neck or back of the head area. 4  Poor feeding and swallowing. 5  Decreased strength in the arms.
A buffer solution (more precisely, pH buffer or hydrogen ion buffer) is an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa.
Which definition best describes a buffer? A buffer is a substance in a solution that releases and captures hydrogen ions, keeping the pH the same. Sodium hydroxide, a base, is added to the solution, but the pH of th â¦ e solution does not change A buffer resists change in pH by accepting hydrogen ions when acids are added to the solution and donating hydrogen ions when bases are added.