{"task_index": 0, "task": "Place the weighing boat on the balance, tare the balance, and use the laboratory spoon to transfer powder into the weighing boat until the powder mass is 0.20 ± 0.02 g. Return any powder remaining in the laboratory spoon to the reagent bottle, and return the laboratory spoon to the beaker."}
{"task_index": 1, "task": "Weigh 0.18–0.22 g of powder in the weighing boat. Place the weighing boat on the balance and tare the balance before adding powder with the laboratory spoon. Pour any powder remaining in the laboratory spoon into the reagent bottle, then place the laboratory spoon in the beaker."}
{"task_index": 2, "task": "Place the weighing boat on the weighing pan and press the tare button to zero the balance display. Scoop and pour powder into the weighing boat using the laboratory spoon until the displayed mass reaches 0.20 ± 0.02 g. Return the remaining spoon contents to the reagent bottle and place the laboratory spoon back in the beaker."}
{"task_index": 3, "task": "Transfer the weighing boat from the table to the balance and tare the balance. Transfer powder into the weighing boat with the laboratory spoon, targeting a net powder mass of 0.20 g within a tolerance of ±0.02 g. Return any powder remaining in the laboratory spoon to the reagent bottle, then return the laboratory spoon to the beaker."}
{"task_index": 4, "task": "Use the left robotic arm to place the weighing boat on the balance. Tare the balance, then use the right robotic arm and laboratory spoon to add powder until the balance displays 0.18–0.22 g. Pour any powder remaining in the laboratory spoon into the reagent bottle and return the laboratory spoon to the beaker."}
{"task_index": 5, "task": "Move the weighing boat from the table onto the weighing pan. Press the tare button and confirm that the balance displays zero. Pick up the laboratory spoon from the beaker and add powder to the weighing boat until the displayed mass is 0.20 ± 0.02 g. Empty any powder remaining in the laboratory spoon into the reagent bottle and place the laboratory spoon back in the beaker."}
{"task_index": 6, "task": "Place the weighing boat on the balance using the left robotic arm and zero the balance with the tare button. Use the right robotic arm to pick up the laboratory spoon from the beaker. Scoop powder and pour powder into the weighing boat until the net powder mass is between 0.18 g and 0.22 g, inclusive. Return any powder remaining in the laboratory spoon to the reagent bottle and replace the laboratory spoon in the beaker."}
{"task_index": 7, "task": "Prepare the balance by placing the weighing boat on the weighing pan and pressing the tare button. Remove the laboratory spoon from the beaker, scoop powder, and pour powder into the weighing boat. Repeat the powder transfer as needed to reach a target mass of 0.20 g with a tolerance of ±0.02 g. Pour any powder remaining in the laboratory spoon into the reagent bottle, then return the laboratory spoon to the beaker."}
{"task_index": 8, "task": "Use the left robotic arm to transfer the weighing boat from the table to the balance. Press the tare button before adding powder. Use the right robotic arm to lift the laboratory spoon from the beaker and transfer powder into the weighing boat. Stop adding powder when the balance displays a mass within 0.18–0.22 g. Return any powder remaining in the laboratory spoon to the reagent bottle and place the laboratory spoon in the beaker."}
{"task_index": 9, "task": "Place the weighing boat on the weighing pan, tare the balance, and verify a zero reading. Pick up the laboratory spoon from the beaker. Scoop powder, pour powder into the weighing boat, and check the balance reading after each addition. Repeat as needed until the displayed powder mass is 0.20 ± 0.02 g. Pour any powder remaining in the laboratory spoon into the reagent bottle and return the laboratory spoon to the beaker."}
{"task_index": 10, "task": "Grasp the weighing boat with the left robotic arm, lift the weighing boat from the table, and place the weighing boat on the weighing pan. Press the tare button to zero the balance display. Pick up the laboratory spoon with the right robotic arm and transfer powder into the weighing boat until the balance displays 0.20 ± 0.02 g. Return any powder remaining in the laboratory spoon to the reagent bottle and place the laboratory spoon back in the beaker."}
{"task_index": 11, "task": "Use the left robotic gripper to grasp the weighing boat on the table. Lift and place the weighing boat on the balance, then press the tare button. Use the right robotic gripper to grasp the laboratory spoon in the beaker and lift the laboratory spoon out of the beaker. Scoop and pour powder into the weighing boat until the net powder mass is 0.18–0.22 g. Return any powder remaining in the laboratory spoon to the reagent bottle, then return the laboratory spoon to the beaker."}
{"task_index": 12, "task": "Grasp and lift the weighing boat from the table with the left robotic arm. Place and release the weighing boat on the weighing pan. Tare the balance and confirm that the display reads zero. Use the right robotic arm to remove the laboratory spoon from the beaker, scoop powder, and pour powder into the weighing boat. Repeat powder additions until the displayed mass is 0.20 ± 0.02 g. Pour any powder remaining in the laboratory spoon into the reagent bottle and place the laboratory spoon in the beaker."}
{"task_index": 13, "task": "Place the weighing boat on the weighing pan using the left robotic arm, release the weighing boat, and press the tare button. After the balance displays zero, grasp the laboratory spoon with the right robotic arm and lift the laboratory spoon clear of the beaker. Scoop powder and tilt the laboratory spoon above the weighing boat to pour powder into the weighing boat. Repeat as needed to obtain 0.18–0.22 g of powder. Return any powder remaining in the laboratory spoon to the reagent bottle and replace the laboratory spoon in the beaker."}
{"task_index": 14, "task": "Use the left robotic arm to grasp the weighing boat, lift the weighing boat off the table, and place the weighing boat on the balance. Zero the balance using the tare button. Use the right robotic arm to grasp and lift the laboratory spoon from the beaker. Scoop powder, move the laboratory spoon above the weighing boat, and pour powder into the weighing boat. Continue adding powder until the balance displays 0.20 ± 0.02 g. Empty any powder remaining in the laboratory spoon into the reagent bottle, then place the laboratory spoon back in the beaker."}
{"task_index": 15, "task": "Close the left robotic gripper on the weighing boat and lift the weighing boat clear of the table. Move the weighing boat onto the weighing pan and release the weighing boat. Press the tare button and verify that the balance displays zero. Grasp the laboratory spoon with the right robotic gripper and lift the laboratory spoon out of the beaker. Scoop powder and pour powder into the weighing boat, checking the balance after each addition. Stop at a displayed mass between 0.18 g and 0.22 g, inclusive. Return any powder remaining in the laboratory spoon to the reagent bottle, then place and release the laboratory spoon in the beaker."}
{"task_index": 16, "task": "With the left robotic arm, grasp the weighing boat on the table, lift the weighing boat, and lower the weighing boat onto the weighing pan. Release the weighing boat and tare the balance to zero. With the right robotic arm, grasp the laboratory spoon in the beaker and lift the laboratory spoon clear of the beaker. Scoop powder, position the laboratory spoon above the weighing boat, and tilt the laboratory spoon to discharge powder into the weighing boat. Repeat as necessary to reach 0.20 ± 0.02 g. Pour any powder remaining in the laboratory spoon into the reagent bottle and return the laboratory spoon to the beaker."}
{"task_index": 17, "task": "Grasp the weighing boat using the left robotic gripper. Lift the weighing boat from the table, place the weighing boat on the weighing pan, and release the weighing boat. Press the tare button before transferring powder and confirm a zero reading. Grasp the laboratory spoon using the right robotic gripper and lift the laboratory spoon out of the beaker. Scoop powder, move the laboratory spoon over the weighing boat, and pour powder into the weighing boat. Check the displayed mass and repeat powder transfer as needed until the reading is within 0.18–0.22 g. Pour any powder remaining in the laboratory spoon into the reagent bottle, then lower and release the laboratory spoon into the beaker."}
{"task_index": 18, "task": "Use the left robotic arm to grasp and lift the weighing boat from the table. Place the weighing boat on the balance weighing pan and release the left robotic gripper. Press the tare button so that subsequent balance readings indicate the powder mass. Confirm that the balance displays zero. Use the right robotic arm to grasp and lift the laboratory spoon from the beaker. Scoop powder and pour powder into the weighing boat. Check the balance after each addition and stop when the displayed mass reaches the target range of 0.20 ± 0.02 g. Move the laboratory spoon above the reagent bottle and pour any powder remaining in the laboratory spoon into the reagent bottle. Place and release the laboratory spoon in the beaker."}
{"task_index": 19, "task": "Grasp the weighing boat on the table with the left robotic gripper, lift the weighing boat clear of the table, and move the weighing boat to the balance. Lower the weighing boat onto the weighing pan and release the weighing boat. Press the tare button and verify a zero reading. Grasp the laboratory spoon in the beaker with the right robotic gripper and lift the laboratory spoon clear of the beaker. Scoop powder, move the laboratory spoon above the weighing boat, and tilt the laboratory spoon to pour powder into the weighing boat. Read the balance after each addition. Repeat scooping and pouring as needed to obtain a net powder mass of 0.20 g, with an acceptable range of 0.18–0.22 g. Pour any powder remaining in the laboratory spoon into the reagent bottle. Lower the laboratory spoon into the beaker and release the right robotic gripper."}