Chem Ii: Lab Safety Quiz

A boiling flask is specifically designed to withstand heat and contain liquids during heating experiments in a laboratory setting. It is not used for storing dry ingredients, measuring gas volume, or weighing solid substances accurately.

A 3 neck boiling flask is specifically designed for conducting chemical reactions that require simultaneous heating of multiple substances at different temperatures. The multiple necks allow for various substances to be added or removed during the reaction process.

A beaker is a common laboratory glassware used for holding and measuring liquids, while Bunsen burner is used for heating, pipette is used for transferring small amounts of liquid, and test tube is used for mixing and heating small amounts of substances.

A burner is commonly used in scenarios where individuals require temporary phone communication without revealing their identity or primary phone number.

The correct answer to the question 'What is a claisen head?' is a component in chemistry used for distillation.

A clamp is a device used to hold or secure objects tightly together to prevent movement or separation.

A condenser is a device that is used to cool and condense a gas into a liquid state by reducing its temperature.

A distillation head is specifically designed to facilitate the distillation process by allowing the separation of components in a liquid mixture based on their boiling points.

A drying tube is commonly used in chemistry to remove moisture or other impurities from a gas stream before it enters a reaction or analysis system. This helps ensure accurate results and prevent unwanted side reactions.

An Erlenmeyer flask is a type of laboratory flask which has a conical base. Florence flask is round-bottomed, beaker has a cylindrical shape, and burette is used for dispensing specific amounts of liquids.

A filter flask is specifically designed for vacuum filtration in a laboratory setting. It allows for the separation of a solid precipitate from a liquid by drawing the liquid through a filter paper using a vacuum source attached to the sidearm. This process is commonly used in chemistry and biology research.

A fractionating column is a key component in the process of separating different components in a mixture based on their boiling points. This is achieved through repeated vaporization and condensation inside the column, allowing for the separation of components with different boiling points.

A funnel is typically used to channel substances or liquids into a narrow opening, allowing for easier transfer without spillage.

A glass stopper is a type of stopper made from glass that is used to seal the opening of a container. Unlike cork, plastic, or rubber stoppers, glass stoppers are often used in laboratories to prevent contamination and for better visibility of the contents inside the container.

A graduated cylinder is specifically designed for measuring the volume of liquids due to its precise graduations along the side.

A hirsch funnel is specifically designed for separating solids from liquids by using filter paper to trap the solids while allowing the liquids to pass through.

A hollow stopper refers to a stopper that has a cavity or empty space inside, as opposed to being solid, transparent, or having a hole in it.

A melting point tube is specifically designed to accurately determine the melting point of a substance through observation and analysis.

A rubber stopper is a common laboratory item used to seal test tubes or flasks. It helps prevent the contents from spilling or evaporating.

A separatory funnel is specifically designed to separate immiscible liquids by taking advantage of their differing densities. By allowing the liquids to settle and then carefully draining off the layers, the liquids can be effectively separated.

A test tube holder is specifically designed to securely hold test tubes during experiments, while the incorrect answers are used for other laboratory purposes.

A vacuum adaptor is specifically designed to connect vacuum hoses of different sizes together to ensure a secure fit and efficient operation.

The correct answer refers to the top part of a wing in an airplane, which is commonly known as the 'roof' of the wing.

Boiling flasks are rounded to allow for even distribution of heat, ensuring that the liquid inside heats uniformly.

An aspirator is a device that creates a vacuum by taking in air, commonly found attached to a faucet for various purposes.

The 'tare' button on an electronic balance is used to reset the balance to zero after placing a container or item on it, ensuring that only the weight of the contents is measured.

Denatured typically refers to a substance that has been rendered toxic or harmful in some way, often by adding chemicals or altering its composition.

When you consume alcohol, it is metabolized by the liver into acetaldehyde, which is a toxic compound contributing to hangover symptoms. Ethanol is the type of alcohol found in beverages, while methanol and formaldehyde are other types of alcohols that can have harmful effects on the body.

Methanol is converted to formaldehyde in the liver through the process of oxidation.