= 2.5 g cm
Since the density of substance (25 g cm 3) is greater than the density of water (1 g cm), therefore, th
substance will sink in water.
0.22. The volume of a 500 g sealed packet is 350 cm? Will the packet float or sink in water if the density
water is 1 g cm"? What will be the mass of water displaced by this packet?
Mass of packet = 500 g
And,
Volume of packet = 350 cm?
Mass of packet
Now,
Density of packet
Volume of packet
Ans. Here,
500 g
3
350 cm
= 1.42 g cm
Since the density of packet (1.42 g cm) is more than the density of water (1 g cm-?), therefore, the packe
will sink in water.
The packet which sinks in water will displace water equal to its own volume. Since the volume of packet is
350 cm", so it will displace 350 cm of water. We have now to calculate the mass of 350 cm3 of water.
Mass of water
Now,
Density of water = Volume of water
Mass of water
So,
1g cm
3
350 cm
Mass of water = 1 g cm ? x 350 cm
And,
= 350 g
is 350
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Answer:
The density of the substance is more than the density of water (1 g/cm3). Hence, it will sink in water. The mass of water displaced by the packet is equal to the volume of the packet, i.e., 350 g.
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