Concept explainers
Interpretation:
The significant figures in the measurement 0.0330 have to be selected from the given list.
Concept Introduction:
Significant figures are the digits that are present in a measurement which is known with certainty plus one digit that is estimated. Whenever a measurement is made, the significant figures in the measured quantity give the actual measurement. For this the significant figures should be recognized first. The significant figures may be non-zero digit and zero digit. But Zero may be or may not be a significant figure. It depends on where the zero appears. Leading zeros in the front of any number are never significant. Zeros between the numbers are significant. Zeros appearing at the last (trailing zeros) are significant if a decimal point is there in the number.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Bundle: General, Organic, and Biological Chemistry, 7th + OWLv2 Quick Prep for General Chemistry, 4 terms (24 months) Printed Access Card
- 6. Sig. Figs in Calculations (report final answer rounded to the appropriate SFs)a. (34.565)(4.45)/(2.4)(343.98) b. 100.0/20.0 c. 2.56+2938.498 d. 20.5-5.5arrow_forwardRead the volume of the liquid in the 150 Erlenmeyer flask. Estimate the volume to the nearest 5 mL increment and enter it with the 100 proper number of significant figures. Note: do not include units in your response. Answer: 115 Checkarrow_forwardA student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. 4. -6.0 x 10 D- ? x10 2 ha Alb Pro Explanation Check 10 tv escarrow_forward
- stion 3 The average of 64 results is how many more times reliable than the average of 4 results ? et answered. ed out of 2.00 Select one g question a. 2 Ob 8 ho o C. 4 Od 16arrow_forwardThe answer is not 0.11arrow_forward2. Express the number 500 cm so it is clear that there are only two significant figures. 5.0 x10? Problems 1. The mass of a gold coin was measured three times and each measurement was made to five digits. The mass values were 23.319 g, 23.341 g, and 23.296 g. The average mass was reported as 23.32 g–The actual mass of the coin is 25.5631 g. a. Are the measurements precise? Explain your answer. b. At what place value is the repeated measurement no longer reproducible (uncertain)? c. Why is the average mass of the gold coin reported to only four significant figures? d. Are the measurements accurate? Explain your answer. acce e. What is the accuracy (percent error) of the average of the three measurements? f. Why is the following statement not considered a description of accuracy? "The differences between each measurement is small, so the data is really accurate".arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoChemistry In FocusChemistryISBN:9781305084476Author:Tro, Nivaldo J., Neu, Don.Publisher:Cengage Learning