A student planned an experiment to determine the density of acetate.
She was given a pack of 50 acetate sheets and had access to standard laboratory apparatus.
The approximate dimensions of a single sheet of acetate are given on the pack.
Length | 30 cm |
Width | 21 cm |
Thickness | 0.15 mm |
The total mass of 50 acetate sheets is approximately 670 g.
Complete the table below.
Quantity to be measured | Measuring instrument | Resolution |
Mass | Balance | 0.1 g |
Length and width | Metre rule | |
Thickness | Vernier calipers |
Describe a method to determine an accurate value for the density of acetate.
The student then followed the same method using thicker sheets of acetate.
Explain why using thicker sheets of acetate would reduce the uncertainty in her value for density.
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