Chemistry Basics Part 7 Ray Tedder NBC Chemistry Teacher

Foundations of Chemistry Formal Tables must have: Table number Table numbers look like this: Table 1. Notice that the number is preceded by the word “Table” and that the word is capitalized. Notice the number is followed by a period.

Foundations of Chemistry Table 1. The acceleration of an object compared to the force applied to it. Acceleration (in m/s 2 ) Force (in N) This is what a table number looks like on a formal table. It might be table number 2 if you have another table before it in the same assignment. Tables are numbered in the order that they appear.

Foundations of Chemistry Formal Tables must have: Table description The table description tells the reader what is in the table and why the information in the table is important.

Foundations of Chemistry Table 1. The acceleration of an object compared to the force applied to it. Acceleration (in m/s 2 ) Force (in N) This is what a table description looks like on a formal table. It explains what is in the table calculations of force and acceleration and it explains why the information is important the comparison of force and acceleration

Foundations of Chemistry Table 1. The acceleration of an object compared to the force applied to it. Acceleration (in m/s 2 ) Force (in N) Table numbers and table descriptions are placed immediately on top of the table. Together, the table number and description make up the table label. The table label should be single spaced.

Foundations of Chemistry Formal Tables must have: Column labels Column labels describe what observations (including measurements) or what calculated numbers are in the column Column labels include the units of measurement in parentheses

Foundations of Chemistry Table 1. The acceleration of an object compared to the force applied to it. Acceleration (in m/s 2 ) Force (in N) Column labels are in the 1 st cell at the top of a column of data. Notice the description of the data in the column. Notice the units of measurement.

Foundations of Chemistry Formal Tables must have: Data cells Data cells have the actual observations (including measurements) and calculated answers Data cells with measurements and calculated answers should not have units of measurement Units of measurement belong in the column label

Foundations of Chemistry Table 1. The acceleration of an object compared to the force applied to it. Acceleration (in m/s 2 ) Force (in N) Data cells are placed under the column labels. Notice these data cells have numbers but do not have units of measurement. Notice the units of measurement are in the column label.

Formal graphs in chemistry. Only dot graphs or scatter graphs are acceptable.

Foundations of Chemistry Formal Graphs must have: Titles The title should have the following form: The dependence of (your dependent variable) on (your independent variable). The title should be centered above the graph.

This is what a formal graph should look like. The title is written in the form where the independent variable is mentioned 1 st and the dependent variable is mentioned 2nd.

Foundations of Chemistry Formal Graphs must have: Axis labels Axis labels must include a description of the measurements or calculations being plotted on that axis and The units of measurement for those measurements or calculated answers.

Notice the axis labels explain what measure- ments or calculated answers are being plotted on the axis. The axis label also includes units of measurement for those measurements or calculated answers. c c

Foundations of Chemistry Formal Graphs must have: Equally spaced number lines on each axis Number labels are required!

Notice how each axis has equally spaced numbering. Notice how the graph data is arranged so that the graph is filled and not bunched up in a corner.

Foundations of Chemistry Formal Graphs must have: Figure labels Figure labels go under the graph Single spaced Figure labels include a number (just like table numbers) Figure labels have a description that explains to the reader what the graph shows, why it’s important, and what analysis can be determined from it.

Figure 1. The figure description should explain to the reader what the data shows and the analysis shows. The type of trend line allows you make analyses. It is your responsibility to develop your own figure description. Figure label.

Mass of empty graduated cylinder g g g g g g g Mass of graduated cylinder with water or salt water soln g g g g g g g Volume of water or solution 40.0 mL 41.1 mL 42.0 mL 42.9 mL 43.4 mL 44.1 mL Mass of salt dissolved in 40.0 mL water 0.00 g 2.00 g 4.00 g 6.00 g 8.00 g g g

Table 1. Measurements and calculations made from different concentrations of sodium chloride (NaCl) in water and the resulting density of those solutions. Test # Mass of empty graduated cylinder (in g) Mass of graduated cylinder with water or salt water soln (in g) Mass of water or soln (mass in column C minus mass in column B) (in g) Volume of water or solution (in mL) Mass of salt dissolved in 40.0 mL water (in g) Density (mass in column D divided by volume in column E) (in g/mL)

Figure 2. The figure description should explain to the reader what the data shows and the analysis shows. The type of trend line allows you make analyses. It is your responsibility to develop your own figure description.

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