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1. Discuss how the measurements in Part I (Small Things) relate to the terms accuracy and precision.
2. What is the width of a single DNA molecule in units of centimeters? [The width of the DNA molecule is given by the distance between any two phosphorus atoms recorded in Part II.]
3. Based on your answer to (2), how many DNA molecules would fit across the smallest dimension of the smallest item (from Part I) measured in lab? Write the number in scientific notation.
4. Using the measurements of glucose in Part III, estimate the volume of a single glucose molecule in both cubic angstroms and cubic centimeters.
V = l x w x h …show more content…
Based on your answer to (4), how many glucose molecules would fit in a 1 cm3 box? Write the number in scientific notation.
Conclusion
Write a conclusion for this experiment, addressing the objectives (listed in your introduction) and main results of this experiment. [Hint: make sure to discuss what you learned about the size of atoms/molecules based on the measurements made in this laboratory exercise.]
What is the Scale of Chemistry? Worksheet
Significant Figures, Scientific Notation and the Metric System
Name(s) _______________ _______________ Section __________
1. Convert each of the following numbers to standard notation. In the parentheses, tell how many significant figures there are in the number.
a) 1.234 x 10-5 _______________ ( ) b) 9.8 x 103 _______________ ( )
c) 5.6 x 102 _______________ ( ) d) 5.60 x 10-2 _______________ ( )
2. Convert each of the following numbers to scientific notation. In the parentheses, tell how many significant figures are in the number.
a) 987,650.0 _______________ ( ) b) 0.0001 _______________ ( )
c) 506.78 _______________ ( ) d) 7766.5 _______________ ( )
e) 0.0200 _______________ ( ) f) 340.043 _______________ (
2. What is the width of a single DNA molecule in units of centimeters? [The width of the DNA molecule is given by the distance between any two phosphorus atoms recorded in Part II.]
3. Based on your answer to (2), how many DNA molecules would fit across the smallest dimension of the smallest item (from Part I) measured in lab? Write the number in scientific notation.
4. Using the measurements of glucose in Part III, estimate the volume of a single glucose molecule in both cubic angstroms and cubic centimeters.
V = l x w x h …show more content…
Based on your answer to (4), how many glucose molecules would fit in a 1 cm3 box? Write the number in scientific notation.
Conclusion
Write a conclusion for this experiment, addressing the objectives (listed in your introduction) and main results of this experiment. [Hint: make sure to discuss what you learned about the size of atoms/molecules based on the measurements made in this laboratory exercise.]
What is the Scale of Chemistry? Worksheet
Significant Figures, Scientific Notation and the Metric System
Name(s) _______________ _______________ Section __________
1. Convert each of the following numbers to standard notation. In the parentheses, tell how many significant figures there are in the number.
a) 1.234 x 10-5 _______________ ( ) b) 9.8 x 103 _______________ ( )
c) 5.6 x 102 _______________ ( ) d) 5.60 x 10-2 _______________ ( )
2. Convert each of the following numbers to scientific notation. In the parentheses, tell how many significant figures are in the number.
a) 987,650.0 _______________ ( ) b) 0.0001 _______________ ( )
c) 506.78 _______________ ( ) d) 7766.5 _______________ ( )
e) 0.0200 _______________ ( ) f) 340.043 _______________ (