buffer solution

Resists acidity changes

A buffer solution resists changes in pH when small amounts of acid or base are added.

It typically contains a weak acid and its conjugate base, or a weak base and its conjugate acid.

Buffers are essential in chemistry and biology, where many processes require stable pH: Blood is a buffer solution that maintains pH around 7.4.

pH-chemistry

pH

Measure of solution acidity

carbonate · phosphate · acetate · citrate · pKa · hydrogen ions · conjugate acid · amphoteric · neutralization · pH scale

laboratory

titration

Measuring concentration by addition

  • pipetteGraduated liquid transfer tube
  • beakerLaboratory measuring container
  • flaskPortable liquid container

molarity · concentration · reagent · indicator · pH meter · volumetric · analyte · spectrophotometry · preparation · calibration

stability

resistance

Capacity to withstand force

steady state · homeostasis · regulation · dynamic equilibrium · effective range · saturation · capacity · tolerance

applications

cell culture

Laboratory technique for growing tissue

fermentation · pharmaceutical · biological samples · DNA extraction · blood chemistry · diagnostic testing

Opposites
pH stability response

buffer solutionpure water

Uncontaminated H₂O

distilled water · saline solution

chemical reactivity

buffer solutionstrong acid

Completely dissociating proton source

strong base · hydrochloric acid

Family

solution, buffer, buffers, buffering, buffered, buffer zone, buffer overflow

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