Chemistry: Structure and Properties, Books a la Carte Edition & Modified MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Chemistry: Structure and Properties Package
1st Edition
ISBN: 9780133908695
Author: Nivaldo J. Tro
Publisher: PEARSON
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My Data:
0.033 g/mL
Class Data:
0.02904 g/mL
0.0256 g/mL
Based on my results (0.033 g/mL), is the class data (0.02904 and 0.0256) precise, accurate, both, or neither
Calculate to the correct number of significant figures.a. 43.7 - 2.341 b. 17.6 + 2.838 + 2.3 + 110.77c. 19.6 + 58.33 - 4.974 d. 5.99 - 5.572
Determine the number of significant figures.
1. 3.4 / 0.025356 + 236.00 - 76.357
2. 5.6786 + 246.346133 + 0.3257413 - 0.9246435
Chapter A2 Solutions
Chemistry: Structure and Properties, Books a la Carte Edition & Modified MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Chemistry: Structure and Properties Package
Ch. A2 - For each number, underline the zeroes that are...Ch. A2 - Prob. 2ECh. A2 - Prob. 3ECh. A2 - How many significant figures are in each number?...Ch. A2 - Prob. 5ECh. A2 - Indicate the number of significant figures in each...Ch. A2 - Round each number to four significant figures. a....Ch. A2 - Round each number to three significant figures. a....Ch. A2 - Prob. 9ECh. A2 - Prob. 10E
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- (a) How many picometers are there in 1 m? (b) Express6.0 * 103 m using a prefix to replace the power of ten.(c) Use exponential notation to express 4.22 mg in grams.(d) Use decimal notation to express 4.22 mg in grams.arrow_forwardA student obtains the following data: a- Mass of evaporating dish 21.345 g b- Mass of evaporating dish and saturated NaCl solution 42.817 g c- Mass of dish and NaCl after evaporation 38.915 g Report the Mass % of NaCl in this solution. Write the number as a percentage with the correct number of significant figures as shown. (i.e. 25%) There should be no space between the numbers and the % sign.arrow_forward58. Perform each calculation to the correct number of significantfigures.(a) 89.3 * 77.0 * 0.08(b) (5.01 * 105) , (7.8 * 102)(c) 4.005 * 74 * 0.007(d) 453 , 2.031arrow_forward
- Determine a single factor that can be used as a multiplier to 1.5 oz to gramsarrow_forwardPerform the calculation to the correct number of significant figures. (8.01-7.50) / 3.002 a) 0.1698867 b) 0.17 c) 0.170 d) 0.1700arrow_forward8. A student determines the density of a substance to be 1400 g/L. What is the % error if the accepted value of the density is 0.001360 kg/mL 2.9 0.029 -2.9 -0.029arrow_forward
- Convert 8.40 g/cm2 to mg/mm2. Round your answer to 1 decimal place. No units needed.arrow_forwardRound off or add zeros to calculate answers to give a final answer with three significant figure 2.0924 * 10-3 garrow_forwardAn empty beaker weighs 31.9982 g. A 10.0 mL pipet sample of an unknown liquid is transferred to the beaker. The mass of the beaker plus th 10-mL liquid sample is 39.8521 g. Calculate the density of the unknown liquid.arrow_forward
- How many pounds (lbs) is 2052 grams? Note:1 kg = 2.205 lbsarrow_forwardA small beaker was found to have a mass of 27.847 g. A 10.00 mL sample of an unknown liquidwas pipetted into the beaker. The mass of the beaker with the solution was 40.101g. Calculate the density of this solution. Express your result to the proper units and number of significant figuresarrow_forward(2×10^−5)(5.09×10^4) (7.70×10^−8) Above is listed as a fraction Express your answer using the correct number of significant figures.arrow_forward
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