Homework Help: Chem

Posted by dra on Saturday, June 19, 2010 at 8:29pm.

mass of empty cylinder is 87.470g
97.470g w/10mL of water
107.470g + 10mL of water
117.470g + 10 more mL of water

need to know the total volume of water (in mL or cm3)
total mass of water
density of water
calculate the average of the 3 densities of water.

Chem - DrBob222, Saturday, June 19, 2010 at 9:39pm
Isn't the total volume 10 mL from the first sample, 10 more from the second sample, and 10 more for the third sample, for a total of 30 mL?

Isn't the total mass the final weighing of 117.470-the initial weighing of 87.470?

density = mass/volume?

You can calculate individual volumes, masses, and densities from the values for mass and volume of each sample.

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