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Chemistry
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Mass of beaker is 5.333g.After 5.00mL of concentrated hydrochloric acid solution is pipetted into the beaker,combined mass of the beaker and hydrochloric acid sample is 11.229g.From data,what is the measured density of the hydrochloric acid solution?

Sep 8th, 2014

First, if the combined mass is 11.229 g, then we subtract the mass of the beaker to find the mass of the HCl:

11.229 - 5.333 = 5.896 g of HCl

The equation for density is:

D = Mass/ Volume

D = m/v

Substituting known values (the mass and Volume of HCl):

D = 5.896g/5.0 ml

We arrive at:

D = 1.1792 g/ml

However, since the volume is given with 3 significant figures, the most proper answer is:

D = 1.18 g/ml

Sep 8th, 2014

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