Question

1. a rubber stopper has a mass of 7.452 g and displaces 6.0 ml of water in a graduated cylinder. refer to example exercise 2 and calculate the density of the rubber stopper. 5. state the length shown for each of the following rectangular solids. 6. an unknown rectangular solid has a mass of 140.417 g and measures 5.05 cm by 2.50 cm by 1.25 cm. refer to example exercise 3 and calculate the density of the unknown solid. 7. an aluminum foil weighs 0.465 g and measures 10.10 cm by 10.05 cm. given the density of aluminum, 2.70 g/cm³, refer to example exercise 4 and calculate the thickness of the foil. 8. what safety precautions must be observed in this experiment?

Explanation:

Answer:

(4) \( 1.242\ g/mL \)
(5) No length values provided in the text for answer
(6) \( 8.89\ g/cm^{3} \)
(7) \( 0.00102\ cm \)
(8) No specific experiment - related info given for safety precautions answer