Question 7
A chemist is determining the density of an unknown liquid. She proceeds by taking the mass of a 10-mL graduated cylinder (24.75 g). Then, she proceeds to add 1mL portions of the liquid while recording the mass. The data is summarized on the table and graphed (best-fit line is also shown) below: From the given data, what is the best measurement of the density?

Editorial unit note: read the horizontal-axis unit consistently with the table and stated additions.
Source-table header transcription: V / mL = added liquid volume; m / g = total mass of cylinder plus liquid. The printed/rendered header cells appear black, so these exact source text-layer headings are supplied here for readability.

Editorial unit note: read the horizontal-axis unit consistently with the table and stated additions.
Source-table header transcription: V / mL = added liquid volume; m / g = total mass of cylinder plus liquid. The printed/rendered header cells appear black, so these exact source text-layer headings are supplied here for readability.