PHASE 1 1 . List the seven SI base amounts, units, and symbols. TIME Second (s) 2 .
Supply the correct DANS LE CAS OÙ derived models of the following quantities. Density Speed Speeding Force Pressure kg/m3 Strength 3. Convert the following:? meters (Ans. 1 ) 22) a. 1 . twenty two x 10-9 km = b. 6. 523 back button 10-4 nm = c. 2 . 5x 10-9 nm3 = deb. 30. your five cm/? s i9000 = e. 9. 6th ng/mm2 = 4. Millimeter (Ans. six. 523 times 10-19) mm3 (Ans. installment payments on your 5 by 10-27) km/h (Ans. 1 ) 09 by 106) kg/m2 (Ans. 9. 6 back button 10-6) Carry out the following calculations and record each response with the correct number of significant figures and units. b. 2 . 457 m by 1 . a couple of m times 2 . 45 m deb. 3. 6050 cm times (24. 12 cm , 23. 0 cm) a. 3. 45 m ” 3. 4 m c. (50. 214 g ” 49. 93 g) times 1 . 224 cm as well as 55. 22 cm3 elizabeth. 4. 0 x 102 cm ” 3 cm f.? installment payments on your 7612g? installment payments on your 7601g? installment payments on your 20cm a few g 26. 167m? 83m 5. 100m h. 12. 64 centimeter ” forty eight mm + 0. 246 m (answer in meters) 7. 87 g/m2 (16. 1 m ” almost eight. 44 m) i. Ans. a) zero. 1 m, b) 7. 2 m3, c) 6th. 3 back button 10-3 g/cm2, d) 3. 61 cm2, e) 4. 0 times 102 centimeter, f) 5. 0 back button 10-4 g/cm3, g) 21. 4 g/m3, h) zero. 324 m, i) 1 ) 03 g/cm3 5. The element be (symbol) is considered dangerous at a concentration of 3. zero x 10-12 g/cm3. Precisely what is this focus in ng/m3? (Ans. several. 0 x 103) six. The average thickness of the the planet is your five. 52 g/cm 3. Precisely what is its denseness in: a)? /mm3? (Ans. 5. 52 x 103) b) lb/ft3? (1 pound = 453. 6 g, 1 in = 2 . 54 cm) (Ans. 345) 7. Gemstone has a density of 3. 513 g/cm3. The mass of diamonds can often be measured in “carats exactly where 1 karat = two hundred mg. What is the volume (in cm 3) of a 2 . 5 carat diamond? (Ans. 0. 14) The density of a liquefied alcohol is usually 0. seventy nine g/cm 3. A tank computing 3. 2 m back button 0. 0020 km x 4. you mm is stuffed with the alcohol. What is the mass with the contents in kg? (Ans. 21) The density of gold can be 19. several g/ centimeter 3. A 3. four mg sample of precious metal is hammered into a rectangular foil that is 8. six? 10? six cm solid. What is the length of a side of the rectangular, in centimeter? Ans. four. 5) A 14-karat gold ring contains 58. 3% gold and weighs doze. 41 g. If precious metal sells to get $276. 00/ounce, what is the significance of the precious metal in the ring? (1 ounces = twenty-eight. 35 g) (Ans. $70. 4) A packing material has a denseness of 12. 8 kg/m 3. Just how many lbs of this materials are necessary to fill a 2 . 00 ft3 package? (1lb = 454 g, 1in sama dengan 2 . fifty four cm) (Ans. 1 . 62 lb) eight. 9. 15. 11. doze. A jogger runs in a average acceleration of 6th. 5 mi/h. (1 mile = 1 ) 609 km, 1 in = 2 . 54 cm) a) How fast is she running in m/s? (Ans. installment payments on your 91 m/s) b) Just how many kms does the girl run in 98 minutes? (Ans. seventeen km) c) How long ought it to take her to cover 12 km? (Ans. 1 . h) d) In the event that she begins a work at 11: 15 was, what period is it after she covers 4. seventy five x twelve 4 ft? (Ans doze: 38pm) 13. Manganese accocunts for 1 . several x 10-4 percent by mass with the elements found in a normal healthier body. How many grms of manganese would be present in the body of person weighing 183 lbs? (2. 2 lb . = 1 ) 0 kg) (Ans. zero. 11 g) If a few. 00 lbs of mercury cost $175 and mercury has a denseness of 13. 6 g/cm3, what is the price tag on 2 . 00 L of mercury? (1 lb sama dengan 454 g) (Ans. bucks 2 . 15 x 103) If a raindrop weighs sixty-five mg usually and 5. 1 x 10 your five raindrops fall season on a lawn every minute. What mass (in kg) of rain is catagorized on a lawn in 2 . h? (Ans. 5. 0 x ciento tres kg) A concentrated sulfuric acid remedy has a density of 1. 84 g/cm3 and possesses is 96. 7% H2SO4 by mass. (Note: thickness of a remedy means mass of solution divided by volume of remedy. ) a) How a large number of grams of pure They would 2SO4 are contained in 1 ) 00 gallon of this solution? 3. 785 L) (Ans. 6. sixty six x 103) (1 gallon = 14. 15. 18. b) How many mm3 of this answer contain 100. 0 mg of genuine H2SO4? ( Ans 56. 8 mm3) 17. A gold blend has a denseness of 12. 4 g/ml and contains 75. 0% precious metal by mass. Calculate the quantity of this blend that can be made from 255 g of real gold. (Ans. 27. some mL) 18.
Whole milk contains 8. 0 % butterfat by mass. If your five. 0 g butterfat products 15 calories from fat, how many calories are contained in 1 . 45 gallons of whole milk ( density of milk = 0. 8 g/ml, 1 gallon = 3. 785 L) (Ans. 1 . 1 times 103 cal) Earth’s oceans have an common depth of three. 800 by 10 a few m, an overall total area of 3. 63 by 108 km2, and a typical concentration of dissolved platinum equal to a few. 80 ng/L. 19. a) Caculate the volume of the seas in cm3. (Ans. 1 . 38 by 1024) b) How a large number of kilograms of gold happen to be in the seas? (Ans. eight. 00 times 109 kg) c) If a recent value of gold was $370. 00/troy ounces, what is the value of gold inside the oceans? 1 troy ounces =31. 1g) (Ans. $ 9. 52 x 1013) 20. When combining the masses 0. 0562 kg, 124. 213 g and 1635 magnesium, the total ought to be reported to ______ significant figures. (Ans. 4) 21 years old. What is the best answer to report for the following mathematical operation? 15. 415? 14. 515 + zero. 0402597 (Ans. 0. 300) 3. 465 22. Just how many vials of quantity 24. two mm three or more can be filled from a bulk sample of zero. 525 kilogram of a water of denseness 0. 900 g/cm3? (Ans. 2 . 41 x 104) It is estimated that uranium is relatively prevalent in the globe’s crust, occurring in levels of 4 g/metric ton. A metric bunch is a thousand kg.
As of this concentration, what mass of uranium exists in 1 ) 0 mg of the globe’s crust? A. B. C. D. At the. 4 nanograms 4 micrograms 4 milligrams 4 x 10-5 g 4 centigrams 23. 24. Which from the following will be intensive houses? W. mass X. density Y. volume level Z. hot point What type of the next is not a physical home of normal water? A. W. C. Deb. E. This exists in solid, water, and gaseous forms It reacts with sodium to form sodium hydroxide It is clear and clear It stalls at 95? C at 1 atm pressure It boils in 100? C at you atm pressure 25. , , , , , , , , , , , , , ANSWERS: twenty-three A, twenty-four X and Z, twenty-five B.
