Precision of Calculated Results

DATA

mass of coins: 11.8792 g

volume of water: 7.01 mL

volume of water + coins: 7.64 mL

CALCULATIONS

volume of coins 0.63 mL

density of coins: 18.855873 g/mL

density of gold: 19.3 g/mL

CONCLUSIONS

...the coins aren’t pure gold

?

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