Chemistry: Structure and Properties
1st Edition
ISBN: 9780321834683
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter A2, Problem 13E
Interpretation Introduction
(a) To determine:
The correct number of significant figures needs to be calculated for the
Interpretation Introduction
(b) To determine:
The correct number of significant figures needs to be calculated for the
Interpretation Introduction
To determine:
The correct number of significant figures needs to be calculated for the
Interpretation Introduction
(d) To determine:
The correct number of significant figures needs to be calculated for the
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Do the following calculations to the correct number of significant figures:
MUST follow the rules of SIGNIFICANT figures
a.) 432/7.3-28.523
b.) 0.004 + 0.09879
c.)87.6 + 9.888 +2.3 + 100.77
d.) 5.01 x 105/7.8 x 102
Do the following calculations to the correct number of significant figures:
a.) 453/2.031
b.) 432/7.3-28.523
c.) 5.01 x 105/ 7.8 x 102
d.) 1459.3 + 9.77/ 4.32
Do the indicated arithmetic and give the answer to the correct number of significant figures.
I.
II. 0.71 + 92.2
III. 934 × 0.00435 + 107
IV. (847.89 - 847.73) + 14673
Chapter A2 Solutions
Chemistry: Structure and Properties
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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- Answer the following in the correct amount of significant figures a. 4278 / 1.006= b. 246.24 + 238.278+ 98.3= c. 1.678 / 0.42= d. (3.50 X 10^5) X [2.8 ÷ (5.4 ‐ 4.09)]=arrow_forwardIII. Perform these calculations and express the result with the proper number of significant figures. a. (4.850 g – 2.34 g)/1.3 mL b. (4.66 x 10-3) × 4.666 c. 0.003400/65.2arrow_forward2. Do the following calculations and use the correct number of significant figures in your answers. Assume all numbers are the results of measurements. a. 0.208 + 4.9 + 1.11 b. 228 + 0.999 + 1.02 c. 8.543 − 7.954 d.(3.2 × 10−2) + (5.5 × 10−1) (hint: Write in the decimal form first, then add.) e. 336.86 − 309.11 f. 21.66 − 0.02387arrow_forward
- Do the following calculations to the correct number of significant figures: a.) 89.3 x 77.0 x 0.08 b.) 4.005 x 74 x 0.007 c.) 9.5 x 103/34.56 d.) 87.6 + 9.888+ 2.3 + 100.77arrow_forwardDo the following calculations to the correct number of significant figures: a.) 3.8 x 105-8.45 x 104 b.) 0.004 + 0.09879 c.) 1459.3 + 9.77/ 4.32 d.) 432/7.3-28.523arrow_forwardDetermine the number of significant figures. 1. 100432.6783 / 2 2. 0.000004523 x 2.34 + 10.00000 3. 0.000004523 x 2.34 + 10arrow_forward
- I keep getting this wrong and have gone over the problem 6 times and cant figure out what im doing wrong. I thought the answer was 3.125 Calculate 5.1234 + 0.033 ÷ 1.650 and report to the correct number of significant figures. a. 5.143 b. 3.125 c. 5.1 d. 3.1arrow_forwardpart A: Sort the following numbers according to whether they should be rounded up or down when rounding to the nearest tenth (the first digit after the decimal). 3.1760, 4.319, 19.47, 5.82, 66.9214, 8878.2010, 7.084, 124.76 part B: Drag the answers that have been correctly rounded to the appropriate number of significant figures to their place in the table. To avoid rounding errors, start with the unrounded value before conducting each manipulation. Drag the appropriate labels to their respective targets. View Available Hint(s)for Part B Reset Help 14.93 Group 3 14.93 12 Group 1 12 14.92 Group 3 14.92 3.62 Group 4 3.62 14 Group 3 14 3.7 Group 4 3.7 15 Group 3 15 3.6 Group 4 3.6 15.0 Group 3 15.0 3.63 Group 4 3.63 14.9 Group 3 14.9 3.623 Group 4 3.623 12.47 Group 1 12.47 7.97 Group 2 7.97 12.46 Group 1 12.46 7.966 Group 2 7.966 12.4 Group 1 12.4 7.0 Group 2 7.0 13 Group 1 13 7.96 Group 2 7.96 12.5 Group 1 12.5 8.0 Group 2 8.0 3.622 Group 1…arrow_forwardDo the following calculation. How many significant figures are justified for the answer? = 6.02 +3.119 +0.04218arrow_forward
- 1. How many significant figures should be retained in the result of the following calculation? 12.00000 x 0.9893 / 13.00335 x 0.0107 a. 2 b. 3 с. 4 d. 5arrow_forwardQ.1. A student obtains the number 0.40076 on a balance. 4.00 x10 If this number actually has (3) significant figures, how should it be written? 0.400 0.4007 0.401 Q.2. Convert 5324 mL to m' (1000 L=1 m') 5.324 x10 5.324 5.324x10' 0.5324x10 Q.3. A student wants 25.0 g of acetone for a chemical 31.605 mL reaction. If the density of acetone is 0.791 g/mL, how many milliliters of acetone are needed? (take care about significant figures) 0.316 x10 19.7 19.77 Multiple optionalarrow_forwardcalculate the following significant figures: a.) 7.890 x 1012/ 6.7 x 104 b.) (67.8 x 9.8)/ (100.04) c.)89.3 x 77.0 x 0.08arrow_forward
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