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CHEM LAB 1 REPORT

Lab Title:

Statement of the Guiding Question:

What patterns and trends exist when data is graphed for the density of a metal?

Materials:

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Procedure:

Procedures can be found on the Discovering Density , Publication No. 7169 at .

Results:

By appearance the metal tested was a color.The sample volume was determined by subtracting the volume from the final volume. The of each sample was determined by using the formula D= m/v.

The results are presented in Data Table (Figure 1) and in a graph (Figure 2) following in this section.

Since, at a mass of zero the volume of a sample would be the starting point on the graph was ( , .) As can be seen in the graph, when the mass increases so does the which follows a pattern that suggests a linear relationship between the sample’s and the sample’s . One/No point was out of place. The points are all/mostly along a best fit line suggesting that all the samples were made of the same .

Using the formula for determining slope (listed below) the density was determined to be g/cm3. Calculating the average density by adding the four sample densities then dividing by turned out to be g/cm3.

Equation 1: Formula for slope density:

m = (y2-y1) ÷ (x2-x1) or m = (y2-y1)

(x2-x1)

Equation 2: Formula for percent error

% error = | measured value - accepted value |

Accepted value

Figure 1 Data Table

|Sample |Metal’s Mass (g) |Initial Volume (cm3) |Final Volume (cm3) |Metal’s Volume (cm3) |Metal’s Density |

| | | | | |(g/cm3) |

| | | | | | |

| | | | | | |

| | | | | | |

| | | | | | |

|Average Density of Metal | |

Figure 2 Density of the Metals Chart

|METAL |Gold |Silver |

|GUIDING QUESTION |10 | |

|ON TIME AND TYPED CORRECTLY |10 | |

|Times New Roman or Calibri Font size 12 Headings done correctly, etc. | | |

|MATERIALS & PROCEDURE |15 | |

|(All steps clearly stated) | | |

|OBSERVATIONS AND DATA |20 | |

|(Measurement units identified) | | |

|GRAPHS, DATA TABLES, CHARTS, FORMULAS |20 | |

|(Title, axes labeled, data points plotted) | | |

|CONCLUSION |15 | |

|(Answers the problem, explains results) | | |

|CORRECT USE OF LANGUAGE |10 | |

|Spelling, grammar, punctuation, etc. | | |

|TOTAL GRADE |100 | |

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