Density of Unknown Substance
 25
 y = 0.763x+ 0
 20
 3 15
 Mass (2)
 10
 5
 o
 0
 5
 10
 20
 25
 30
 15
 Volume (ml)
 22. KEY IDEA: You walk into the lab and find mass and volume data next to a bottle of a clear & colorless
 liquid. You decide to plot the data and it results in the graph shown above with a slope of 0.763. Identify
 the unknown liquid using the information below. Unknown is
 Support your
 answer
 y =mx + b
 Substance Density (g/mL)
 Water 1.00
 Ethanol
 0.789
 Ammonia 0.823
 Glycerin 1.259