Chapter2HW - Chapter 2 Homework How many significant...

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Chapter 2 Homework How many significant figures in the following measurements and underline the uncertain number? 6,072 m (4 sig figs) 0.004040 g (4 sig figs) 6,07 0 L (3 sig figs) 6,070 . L (4 sig figs) 3,000 . g (4 sig figs) 0.00404 L (3 sig figs) 49,5 00 m (3 sig figs) 3 ,000 m (1 sig fig) 372.00400 L (8 sig figs) 0.000000004 m (1 sig fig) Add the following and report the answers to the correct number of significant figures. (A) 23.0042 m + 9.0 m = 32.0 m (B) 19.38 cm + 2.4 cm = 21.8 m (C) 9.1 m + 11.01 m + 10 m = 30 m Find the products of the following and report the answers to the correct number of significant figures. (A) 42.0 m x 4.0 m = 170 m 2 (B) 1.78 cm x 0.05 cm = 0.09 cm 2 (C) 1001 mm x 40 mm = 4000 mm 2 (D) 1001 mm x 40 . mm = 4000 mm 2 Solve the following. ( NOTE: I USED SIG FIGS IN THE ANSWERS ON THESE ) 1) 23.67 m + 45.7 m = 69.4 m 2) 67.2 g – 30.4 g = 36.8 g 3) 56 m x 20.4 m = 1100 m 4) 1020 m ÷ 20 s = 50 m/s 5) 10,000.0 m + 1 m = 10,001 m 6) 100.00 m + 1 m = 101 m 7) 1020 m ÷ 20.0 s = 50 m/s 8) 5.67 m + 10.0 m = 15.7 m 9) 5.67 m + 10.1 m = 15.8 m 10) 100.0 g + 5 g = 105 g
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Chapter2HW - Chapter 2 Homework How many significant...

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