A piece metal weighing 20.32 grams is added to a flask with a volume of 24.5 mL. It is found of that 18.52 grams of water (d = 0.9970 g/ml) be added to fill the flask. What is the density of the metal?
1 Answer
Oct 2, 2016
Explanation:

Find the volume of water added to fill the flask.
#Density = (mass)/(volume)#
#Volume = (mass)/(density)#
#Vol (mL) = (18.52g)/((0.9970g)/(mL))#
#Vol (mL) = (18.52g)*((mL)/(0.9970g))#
#Vol (mL) = 18.58mL# 
Find the volume of the metal by subtracting the volume of water add.
volume of metal =#24.5 mL  18.58mL#
#Volume (mL) = 5.92mL# 
This volume of metal has a mass of 20.32g. Therefore, we can find its density:
#Density = (mass)/(volume)#
#Density = (20.32g)/(5.92mL)#
#Density = (3.432g)/(mL)#