What is a uffer in chemistry?

In chemistry, a "uffer" is likely a typographical error or misspelling of "buffer." A buffer is a solution that resists significant changes in pH when small amounts of acid or base are added. It typically consists of a weak acid and its conjugate base or a weak base and its conjugate acid, allowing it to maintain a stable pH in various chemical reactions. Buffers play a crucial role in biological systems and many laboratory applications.