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Chemistry

list 5 lab apparatus or equipment to measure WEIGHTS not volume or mass

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter2: Measurements And Calculations

Section: Chapter Questions

Problem 124AP: Draw a piece of lab glassware that can appropriately measure the volume of a liquid as 32.87 mL.

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

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list 5 lab apparatus or equipment to measure WEIGHTS not volume or mass

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Figure 01: Different types of glassware for measuring liquid volume. How to use a graduated cylinder? 1. Look straight across at the graduated cylinder to avoid parallax error (Figure02). Read the bottom of the meniscus (the curved surface of the solution).2. Important note about significant digits: A 100 mL graduated cylinder hasmarks at 1-mL intervals; therefore, you should estimate the volume to thenearest 0.1 mL. This is done by dividing the space between the 1-mL marksinto ten imaginary spaces and deciding which of those spaces the meniscusis closest to. It’s OK if you aren’t sure—use your best judgment. The last digitof any measurement is supposed to be uncertain or an estimate or bestguessed number.3. If the meniscus is exactly on a line, you still record the volume to the nearest0.1 mL. For example, if it’s right on the 27-mL line, record the volume as“27.0 mL” to show that you read it carefully and the margin of error is 0.1mL. Remember, trailing zeros after the decimal point…