Part B: Specific gravity of distilled water. Temperature of distilled water: 20C

Question

Part B: Specific gravity of distilled water.


Temperature of distilled water: 20C


Specific gravity: 1.0000 or 1.000 (according to the hydrometer used)



Part C: Specific gravity of standard sugar solutions


Standard Sugar Solution   

#1 Mass of Sugar: 18.03g
Volume of Solution: 500mL
Specific Gravity:1.004

#2 Mass of Sugar: 36.01g
Volume of Solution: 500mL
Specific Gravity:1.027

#3 Mass of Sugar: 53.03g
Volume of Solution: 500mL
Specific Gravity:1.040

Part D: Specific gravity of soft/sports drinks

Solution Specific Gravity of

Regular Coke : 1.050

Gatorade : 1.025

1. Calculate the density of distilled water used.

(Hint: A hydrometer is an instrument that measures the density of a liquid. It is designed to float in a liquid. The
length of a hydrometer floating above the liquid surface depends on the density of a liquid. A hydrometer sinks
more in a liquid with a lower density. Printed scales of a hydrometer measure the specific gravity of a liquid at a
particular temperature. A specific gravity is the ratio of the density of the liquid with respect to the density of water
at a specific temperature: )

(Eq. 1) specific gravity = density of a liquid / density of water

Specific gravity scales of your hydrometer uses the density of water at 60F (15.6C) as unity which is 0.9990090
g/mL.

Please answer Question #1 in bold and please show your formulas with the answers. Thanks. (part C is part of the data I have that may be needed to do the problem)

Explanation / Answer

Specific gravity= density of considered liquid/ density of water

In here you used distilled water

Take density of water as D

Then

d of suger sample 1 = 18. 03/ 500= 0.036 gml-

Subtitute to above eq.

1.004 = 0.036 / D

D= 0.0358 gml-

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