How would you describe a volumetric flask?

How would you describe a volumetric flask?

A volumetric flask is a flat bottomed bulb with a elongated neck calibrated to hold a set volume at a mark on the neck. The flask may also be called a graduated flask or measuring flask because its mark specifies a precise volume measurement. The mark on the flask neck indicates the volume contained.

Is there a 500 ml volumetric flask?

These 500 mL Class A PYREX® volumetric flasks have machine-blown bodies to which are sealed heavy-beaded, heavy-tubing necks, tooled for No. 19 Standard Taper polyethylene stoppers. The linear high density polyethylene stoppers are made with a closed bottom to conform to Standard Taper stopper dimensions.

What is a volumetric flask best used for?

A volumetric flask (measuring flask or graduated flask) is a piece of laboratory apparatus, a type of laboratory flask, calibrated to contain a precise volume at a certain temperature. Volumetric flasks are used for precise dilutions and preparation of standard solutions.

What is the volume of a volumetric flask?

Water can be delivered from the beaker or wash bottle. A volumetric flask is used to measure very precisely one specific volume of liquid (100 mL, 250 mL, etc., depending on which flask you use).

Why does a volumetric flask have the shape?

A tube was used for the neck since the volume filling the tube would change at a consistent rate. So you have a bulb holding most of the liquid, and a tubular neck to indicate when you have the correct volume. The flask looks like a pear shaped container.

What are flasks used for?

Flasks can be used for making solutions or for holding, containing, collecting, or sometimes volumetrically measuring chemicals, samples, solutions, etc. for chemical reactions or other processes such as mixing, heating, cooling, dissolving, precipitation, boiling (as in distillation), or analysis.

How do you find the volume of water in a flask?

Find the mass of the empty flask. Fill the flask with a liquid of known density (e.g., water at 23°C), and measure the mass of the liquid-filled flask. Subtract to find the mass of the liquid. Using the known density and mass, calculate the volume.

What is a flask used for?

What is the uncertainty of a 1000 mL volumetric flask?

All graduated glassware is read with one estimated digit, so this measurement is recorded correctly to the nearest 0.1 mL, with an understood uncertainty of ± 0.1 mL.

Why is a volumetric flask shaped that way?

The flask has a conical base that almost extends into a small, cylindrical neck. This shape allows the flask to be sealed with a bung for heating purposes, while also allowing a researcher the freedom to shake or stir the flask without spilling liquid.

How much can a flask hold?

A regular sized hip flask holds 8oz of alcohol, which equates to just over five shots. However, they are available in a huge range of sizes from 1.5oz (one shot) to as big as you can pay someone to make one for you.

Why is a volumetric flask more precise?

The long, narrow, and slender neck of the volumetric pipette makes it easier to measure and read the meniscus very precisely.