Lab Safety and Procedures Quiz

A liquid mixture used in a laboratory procedure.

A technique used to examine very small objects, usually with a microscope.

Separating different substances based on their density by using gravitational force.

Maintaining a sample at a constant temperature, often using a water bath.

A symbol that warns about the potential hazards of a chemical substance.

Describes a substance that can easily catch fire.

A visual representation of the volume of liquid inside a pipette.

Device used to measure and transfer precise volumes of liquids.

The range of acidity or alkalinity of a substance, measured on a scale from 0 to 14.

A substance that breaks down lipids and proteins, separating them from DNA during isolation.

A liquid that causes DNA to solidify, making it visible and easier to collect.

A chemical compound that helps in DNA precipitation by neutralizing its negative charge, preventing clumping.

Enzymes that break down proteins that tightly bind to DNA.

The process of isolating and separating DNA from cells or tissues.

The process of separating different substances based on their density by using gravitational force.

A technique used to break open cells or tissues to release their contents, including DNA.

A chemical solution used to dissolve and wash away unwanted components during DNA isolation.

The process of removing unwanted substances or impurities from a sample, like DNA.

The negative logarithm of the hydrogen ion concentration ([H+]) in a solution.

The negative logarithm of the hydroxide ion concentration ([OH-]) in a solution.

The concentration of hydrogen ions ([H+]) in a solution can be calculated by taking the antilogarithm of the negative pH value.

The concentration of hydroxide ions ([OH-]) in a solution can be calculated by taking the antilogarithm of the negative pOH value.

A solution containing one mole of solute per liter of solution.

A solution containing one equivalent weight of solute per liter of solution.

The weight of a substance that reacts with or is equivalent to one mole of hydrogen ions (for acids) or hydroxide ions (for bases).

A solution containing one mole of solute per kilogram of solvent.

The number of moles of solute per liter of solution.

The number of moles of solute per kilogram of solution.

A laboratory instrument used to accurately deliver fixed volumes of liquids.

A laboratory instrument used to measure the mass of a substance, often in grams.

A laboratory instrument used to heat and stir solutions, often with a magnetic stirrer.

A laboratory instrument used to measure the acidity or alkalinity of a solution, using a scale from 0 to 14.

A laboratory instrument used to measure the concentration of a specific compound in a solution by analyzing light intensity at different wavelengths.

Used for looking at small specimens that we can't see with our naked eye.

A laboratory instrument used to separate substances based on their density by spinning them at high speed.

A small, cylindrical glass tube used to hold and manipulate small amounts of samples in experiments.

A rack designed to hold multiple test tubes upright, providing stability and organization.

A tool used to grip and hold test tubes, especially those that may be hot.

Similar to a pipette but designed for extremely small volumes of liquid.

A graduated tube with a stopcock used for dispensing precise volumes of liquid.

A device used for accurately measuring mass, typically in grams.

An instrument for heating substances, often used with a magnetic stir plate.

A device used to measure the pH or acidity of a liquid sample.

An instrument that uses lenses to magnify images of small objects such as cells or organic compounds.