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14. The density of mercury is 13.6 gcm-3. Find the
mass of 25 cm3 of the mercury.
15. The mass of an ice block is 125 g. If density of
ice is 0.92 gcm-3, find the volume of ice block.
16. A silver block has mass 200 g and its density is
10.3 gcm-3. Find the volume of the silver block.
Pls ans with steps
Answers
Answer:
14.Mass = Density × Volume
∴ Mass of mercury = 340 grams.
15.Given that, Mass (m) of an ice block is 125 g and density (d) of ice is 0.92 g/cm³.
We have to find the volume of the ice block.
Density is defined as the ratio of mass per unit volume.
i.e.
Density = \sf{\dfrac{Mass}{Volume}}
Volume
Mass
Substitute the known values
\implies\:\sf{0.92\:=\:\dfrac{125}{Volume}}⟹0.92=
Volume
125
\implies\:\sf{Volume\:=\:\dfrac{125}{0.92}}⟹Volume=
0.92
125
\implies\:\sf{Volume\:=\:135.87\:cm^3}⟹Volume=135.87cm
3
\rule{200}2
• If an object is greater than 1, then it will sink in water. Otherwise, it will float.
• Unit of mass is g (gram) and for volume is cm³. Therefore, the unit of density is g/cm³.
16.Mass=200g
Density=10.3g/cm-3
Volume=Mass/Density
=200/10.3
=19.41 cm-3
Step-by-step explanation:
Hope it help