Sig Fig Lab.

Slides:



Advertisements
Similar presentations
Measurements with Range Uncertainty CHEMISTRY 11 UNIT 1.3.
Advertisements

Scientific Measurement. All measurements have a number value AND a unit.
The volume we read from the beaker has a reading error of +/- 1 mL.
Physical quantities and their measurements
SIGNIFICANT FIGURES.
Using the Metric Ruler Recognizing the Difference Between Centimeters (cm) and Millimeters (mm) on the Metric Ruler.
Scientific Measurement Tools
Volume Determination and Density Lab 3. Outline Reading a meniscus Volume determination and significant digits Balances Mathematical treatment of data.
Chemistry Calculations
Measuring: Using the Metric System in Science. graduated cyclinder.
SIGNIFICANT FIGURES. ACCURACY VS. PRECISION  In labs, we are concerned by how “correct” our measurements are  They can be accurate and precise  Accurate:
MEASUREMENTS. EXACT NUMBERS! Numbers determined by counting or by definition Ex: 6 apples, 1 teacher 1 inch=2.54 cm.
Content Standard 1 Select appropriate laboratory glassware, balances, time measuring equipment, and optical instruments to conduct an experiment.
Significant Figures Number of digits believed to be correct by the person doing the measuring Includes 1 estimated digit Read to 1/10 the smallest division.
Math vs. Science mathematicianTo a mathematician: 73 = 73.0 = = etc. scientistTo a scientist, these numbers mean very different things.
Reading Scales Section 1.3. Our Metric Rulers are Marked off in Centimeters 10 centimeters are in one decimeter.
Some Common Laboratory Glassware Please be careful when using glassware in the laboratory. Wet glassware and wet gloves are slippery. Always read a volume.
Significance in Measurement How to make a measurement from an instrument… How to make a measurement from an instrument… Write down all the digits that.
MEASUREMENTS. What is the difference between these two measurement rulers? Should we record the same number for each scale reading? The second scale gives.
Numbers There are two kinds of numbers in the world: exact: – example: There are exactly 12 eggs in a dozen. – example: Most people have exactly 10 fingers.
Intro to Chemistry: Significant Figures!. There is uncertainty in all measurements. The “certain” digits include all numbers read directly off of the.
Chapter 1 Chemical Foundations. Section 1.4 Uncertainty in Measurement 2 Return to TOC Copyright © Cengage Learning. All rights reserved Precision and.
Accuracy and Precision Difference between accuracy and precision Accuracy- how close you are to the actual answer Accuracy- how close you are to the.
Activity – Making Measurements
Quick Review of the 10’s places 123,456 1’s place 10’s place 100’s place 1,000’s place 10,000’s place 100,000’s place.
Volume determination and density
READING BETWEEN THE LINES Estimate one place on non digital equipment. (rulers, graduated cylinders) 6 7 cm 6.42 cm If it is exactly on the line 6.60 cm.
LABORATORY GLASSWARE AND EQUIPMENT LAB 2. Welcome Welcome to the chemistry lab! Chemistry is a lot of fun, but can be even more so if you are familiar.
Significant Figures Show the Uncertainty in Measured Data
Friday October 10 Objective: Demonstrate proper lab safety techniques. Checkpoint: Record the volume of water (in mL) with the correct number of sig figs:
Significant Figures SIGNIFICANT FIGURES You weigh something and the dial falls between 2.4 lb and 2.5 lb, so you estimate it to be 2.46 lb. The first.
Unit: Introduction to Chemistry
Significant Figures!.
Chapter 1 Significant Figures.
How big is the beetle? Measure between the head and the tail!
How big is the beetle? Measure between the head and the tail!
Unit 1 Review.
Measuring.
Laboratory Glassware and equipment
Reading Glassware.
Aim: Why are Significant Figures Important?
Scientific Measurement
Significant Figures Show the Uncertainty in Measured Data
Significant Figures.
Measurement.
Measurements & Tools 1C.
OPENING ROUTINE A material will float on the surface of a liquid if the material has a density less than that of the liquid. Given that the density of.
Accuracy and Precision
Significant Figures.
IV. Significant figures
Quantitative Properties For Matter
Sig Fig Math and Measurement
SIGNIFICANT figures.
Welcome to Chemistry! Lab One.
Reaction Rates.
When using a ruler, we measure in _____________.
Finding the Density of Different Objects
Which tool on the left could you be the most precise with?
Lab Equipment.
Introduction to Significant Figures &
Central question for the day
Preparing Solutions.
Accuracy and Precision
Which of these numbers has the most significant figures E 5
Measurement in Chemistry
Measuring Hints.
Which instrument gives the best measurement?
Significant Figures.
Introduction to Significant Figures &
Presentation transcript:

Sig Fig Lab

Ruler #1

Ruler #2

Ruler #3

1. Which ruler was easier to use?   2. Which ruler provided a more exact measurement? 3. Which ruler required you to estimate? 4. How many numerical digits are in your centimeter measurement for the: Ruler #1: ________________ Ruler #2: ________________ - Ruler #3: ________________

Read ruler

50 mL Beaker

100 mL graduated cylinder

10 mL graduated cylinder

50 mL Buret

Conclusion 50 mL beaker: ________________ 1. Which piece of glassware was easier to use?   2. Which piece of glassware provided a more exact measurement? 3. Which piece of glassware required you to estimate the most? 4. How many numerical digits are in your measurement for each piece of glassware: 50 mL beaker: ________________ 100 mL graduated cylinder: ________________ 10 mL graduated cylinder: ________________ Buret: _________________

Summary When reading a measurement the last digit should ALWAYS be _____________________.

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.