What should you write in your lab notebook if you measure 10 mL of a liquid as accurately as you can by eye using each of these devices? a) graduated cylinder b) beaker c) volumetric pipette
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
For devices in which variable volumes can be measured “by eye”, you are entitled to estimate (interpolate) between the finest divisions of any scale on the device. For a graduated cylinder, the finest division is 0.2 mL, for the beaker, it is probably greater than 1 mL,. The volumetric pipetter is not a variable volume device; it only measures the indicated volume; for a 10 mL pipette at the index mark, it is accurate to 0.01 mL
What should you write in your lab notebook if you measure 10 mL of a liquid as accurately as you can by eye using each of these devices?
a) graduated cylinder
b) beaker
c) volumetric pipette
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