
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Define significant figures with examples?
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- How many significant figures should be reported on a 25 mL buret?arrow_forwardconvert to three significant figures 5.14900*10-3arrow_forwardAn object weighing 18.00 g is placed in a graduated cylinder containing 14.0 mL of water. The total volume of the water and the object is 29.0 mL. What should the density be reported as?arrow_forward
- Significant figures 98/.006arrow_forwardHow many significant figures does the number 5.0000 have?arrow_forwardOne component of a metal sculpture consists of a solid cube with an edge of length 30.5 cm30.5 cm . The alloy used to make the cube has a density of 7150 kg/m37150 kg/m3 . Find the cube's mass.arrow_forward
- A beaker of water has an initial mass of 455.2 g. After it has been left uncovered for several days, some of the water has evaporated. The new mass of the beaker is found to be 422.55g using a more precise balance. Which of the following expresses the mass of the evaporated water using the correct number of significant figures? A) 32.65 g B) 32.7 g C) 33 g D) 32.650 garrow_forwardA supposedly gold nugget displaces 14.4 mL of water and has a mass of 276 g. Calculate the density of the nugget. Express your answer to three significant figures.arrow_forward1000 900 800 700 600 500 400 300 200 100 A sample of liquid has a measured volume of 561 mL. 1. How many significant figures does the measurement have? 2. Suppose the volume measurement was made with a graduated cylinder just as you see above. How far apart were the scale divisions on the cylinder, in mL? 3. Which of the digits in the measurement is uncertain?arrow_forward
- 1. A wooden square block is placed on an analytical balance giving a mass of 5.1977 g. The square block has dimensions of 2.00 cm long, 2.00 cm wide, and has a height of 2.00 cm. Calculate the density of the wooden square block in units of g/cm3 to the correct number of significant figures. Thie morbloarrow_forwardConsidering significant figures, 6.333 x 4.9 would equalarrow_forwardquestion #3 Express each result in correct number of significant figures and with correct unit.arrow_forward
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