Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Let's Review: The Tools of Quantitative Chemistry - Study Questions - Page 43d: 46



Work Step by Step

By plotting the data on Excel, the line's equation we get is $\rho=-0.00019\times T + 1.00133$ At 20°C, from this equation we get: $\rho = 0.99753\ g/cm^3$. The relative deviation from the density your partner found is: $E=\dfrac{0.99910-0.99753}{0.99753}\times100\%=0.16\%$ It is a reasonable number given the small deviation. Since the densities are presented with 5 significant numbers, this deviation might be too big, but that information is outside the scope of the question.
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