Domain: Chemistry / apparatus_usage

turn: 1
modality: text
input: Which of the following substances are consistent with the description: 'A white, odorless, crystalline solid that is soluble in water and decomposes upon heating to release a gas'?
Options:
A. Sodium chloride (NaCl)
B. Sodium bicarbonate (NaHCO3)
C. Calcium carbonate (CaCO3)
D. Sodium hydroxide (NaOH)
E. Ammonium chloride (NH4Cl)
F. Potassium nitrate (KNO3)
G. None of the above
output: answer: B, C

turn: 2
modality: image
input: It is known that the target substance is one of the correct options from the previous question and satisfies the additional condition: 'It is a common household chemical used in baking and as an antacid, and it should be stored in a tightly sealed container to prevent moisture absorption.' Please generate an image showing this target substance stored correctly in its proper container and placed on a laboratory bench.
output: evaluation_points: 1. The container depicted in the image is correct: a wide-mouth glass jar or a plastic container with a screw-top lid, clearly labeled. The label should indicate the substance is sodium bicarbonate (baking soda).

2. The substance generated is indeed sodium bicarbonate (baking soda), appearing as a fine, white, crystalline powder.

3. The substance is contained within the jar, filled to an appropriate level (e.g., 1/2 to 3/4 full), with the lid securely closed to indicate protection from moisture.

4. The background is a clean, uncluttered laboratory bench scene.

turn: 3
modality: image
input: We will subsequently refer to the substance you identified earlier as the 'target substance.' In the process of 'preparing carbon dioxide gas by reacting this target substance with a dilute acid,' the laboratory instrument 'gas collection apparatus (using the downward displacement of water)' is employed. Please generate an image depicting the correct usage of this instrument during this reaction. The background is a simple laboratory bench.
output: evaluation_points: 1. The image correctly depicts a gas collection setup for downward displacement of water, including a reaction flask (e.g., conical flask), delivery tube, gas jar, water trough, and beehive shelf.

2. The reaction shown involves a solid white powder (the target substance, sodium bicarbonate) in the flask reacting with a clear liquid (dilute acid, e.g., hydrochloric acid), with bubbles of gas being produced and traveling through the delivery tube.

3. The gas collection apparatus is used correctly: the delivery tube outlet is positioned under the inverted gas jar filled with water in the trough; the gas jar is securely held by the beehive shelf; the setup allows for the collection of the gas (CO2) which displaces the water.

4. The background is a clean, uncluttered laboratory bench scene.

turn: 4
modality: text
input: Based on the instrument and operational scene in the input image, determine which of the following statements about this instrument and its usage specifications are correct:
Options:
A. This setup is suitable for collecting gases that are highly soluble in water.
B. The gas jar must be completely filled with water and inverted without any air bubbles before collection begins.
C. This method is typically used for collecting gases that are denser than air.
D. The delivery tube can be removed from the water while gas is still being produced to check the collection rate.
E. The reaction flask should be heated vigorously to speed up gas production.
F. The collected gas can be identified by introducing a burning splint into the gas jar.
G. None of the above
output: answer: B, F