Which container is calibrated to hold only one exact volume of liquid?

Which container is calibrated to hold only one exact volume of liquid?

• A. Volumetric flask
• B. Erlenmeyer flask
• C. Griffin beaker
• D. Graduated cylinder

Answer: (A)

A container that holds one exact volume is built for precision. Volumetric flasks are calibrated at a defined temperature (usually 20°C) and have a neck with a single calibration mark. When you fill the flask exactly to that mark and stopper it, the volume inside is precise and known, which is essential for making standard solutions. The other vessels serve different purposes: an Erlenmeyer flask is mainly for mixing and heating with approximate volumes; a Griffin beaker is a general-use container with rough volume markings; a graduated cylinder is designed to measure varying volumes accurately, not to hold a single fixed amount.

A container that holds one exact volume is built for precision. Volumetric flasks are calibrated at a defined temperature (usually 20°C) and have a neck with a single calibration mark. When you fill the flask exactly to that mark and stopper it, the volume inside is precise and known, which is essential for making standard solutions. The other vessels serve different purposes: an Erlenmeyer flask is mainly for mixing and heating with approximate volumes; a Griffin beaker is a general-use container with rough volume markings; a graduated cylinder is designed to measure varying volumes accurately, not to hold a single fixed amount.