Quiz 1

Name: ______________ Quiz 1 1. ( True /False) CO is a compound. 2. Which of the following are physical properties of matter? a. Reactivity b. Condensation c. Flammability d. Stability 3. Which of the following is an example of an extensive property of copper nugget? a. It has a mass of 52.3 g. b. It is copper colored. c. It has a density of 8.96 g/cm d. It has a melting point of 1085 °C 4. Three students measure the volume of a liquid using a graduated cylinder. In a separate experiment, the actual value volume of the liquid is 152 mL. Which set of data is the most precise? Student 1 is on the right. a. Student 1 b. Student 2 c. Student 3 d. Not enough information 5. If a room requires 27.8 square yards of carpeting, what is the area of the floor in units of f 2 ? (3 f = 1 yd) a. 70.6 f 2 b. 166.8 f 2 c. 83.4 f 2 d. 9.27 f 2 e. 250 f 2 6. When Jordy recorded 2.450 cm from her measurement during the lab, which of the following is the certain number? Which is the number she estimated? a. 2.4, 0.05 b. 2.45, 0.000 c. 2, 0.450 d. 2.450, 0.0000 7. What answer should be reported, with the correct number of significant figures, for the following calculation? (965.43 × 3.911) + 9413.4136 a. 13189 b. 13189.2 c. 1.319 × 10 4 d. 1.32 × 10 4

8. Which of the following temperatures is the coldest? °F = 1.8 (°C) + 32 T (K) = T (°C) + 273 a. 100K b. 100°F c. 100°C d. 0°C 9. Advil contains 325 mg of acetaminophen per tablet . If the dose is not to exceed 3.9 g of acetaminophen daily, what is the maximum number of Advil tablets a patient can take daily? a. 1.3 tablets b. 13 tablets c. 12 tablets d. 11 tablets e. 10 tablets 10. (5 points) Lelia has a temperature of 101.5°F. Can you convert it to kelvin? °F = 1.8 (°C) + 32 T (K) = T (°C) + 273 Please show your work Assume x°C 101.5 =1.8 x + 32 1.8x= 69.5 X = 38.6°C K = 38.6 +273 = 311.6K (4 sig fig, 2 point) 11. (10 points)Gisele Bundchen and Tom Brady spent the day afer Christmas treating their adorable brood to a fun trip to the zoo! Tom Brady bought Gisele Bundchen a ring. The ring weighed 12.15 oz. The volume of the ring was 2 in 3 . This ring was made of a. Silver (density= 10.5 g/mL) b. Gold (density = 19.32 g/mL) c. Diamond (density= 3.52 g/cm 3 ) d. Platinum (density= 21.4 g/mL) 1oz =28.35g, 1in. = 2.54cm, 1cm 3 =1mL. Show your work. Please show your work 1 in= 2.54 cm (1 in) 3 = (2.54 cm) 3 = 16.4 cm 3 2 in 3 = 32.8 cm 3 12.15 x 28.35 = 344.4g 344.4 g/ 32.8 cm 3 = 10.5 g/ cm 3 Answer : a

a. 12.9 L b. 0.0437 L c. 22.9 L d. 0.0777 L 9. A liquid in the lab has a density of 1.17 g/cm³ . What is the volume in liters of 3.02 kg of the liquid? a. 3.53L b. 3.02L c. 2.58 kg d. 3.53kg e . 2.58 L 10. If a room requires 23.2 square yards of carpeting, what is the area of the floor in units of f 2 ? (3 f = 1 yd) Please show your work 3 f = 1 yd (3 f) 2 = (1 yd) 2 9 f 2 = 1 yd 2 1 yd 2 = 9 f 2 23.2 x (9 f 2 ) = 23.2 x 1 yd 2 = 23.2yd 2 =209 f 2 3 sig fig 11. Gisele Bundchen and Tom Brady spent the day afer Christmas treating their adorable brood to a fun trip to the zoo! Tom Brady bought Gisele Bundchen a ring. The ring weighed 4.07 oz. The volume of the ring was 2 in 3 . This ring was made of a. Silver (density= 10.5 g/mL) b. Gold (density = 19.32 g/mL) c. Diamond (density= 3.52 g/cm 3 ) d. Platinum (density= 21.4 g/mL) 1oz =28.35g, 1in. = 2.54cm, 1cm 3 =1mL. Show your work. Please show your work 1 in= 2.54 cm (1 in) 3 = (2.54 cm) 3 = 16.4 cm 3 2 in 3 = 32.8 cm 3 4.07 x 28.35 = 115.5g 115.5 g/ 32.8 cm 3 = 3.52 g/ cm 3 Answer : c