   Chapter 1, Problem 53AP

Chapter
Section
Textbook Problem

One cubic centimeter (10 cm3) of water has a mass of 1.0 × 10−3 kg. (a) Determine the mass of 1.0 m3 of water. Assuming that biological substances are 98% water, estimate the masses of (b) a cell with a diameter of 10 μm, (c) a human kidney, and (d) a fly Take a kidney to be roughly a sphere with a radius of 4.0 cm and a fir to be roughly a cylinder 4.0 mm long and 2.0 mm in diameter.

(a)

To determine
The mass of water.

Explanation

Given info:

The density of water is 1.0×103kg/cm3 and volume of water is 1.0m3 .

Expression for the mass of water is,

m=ρV

• m is the mass of water
• ρ is the density of water
• V is the volume of water

Substitute 1.0×103kg/cm3 for ρ and 103m for V to find m

(b)

To determine
The mass of cell.

(c)

To determine
The mass of kidney.

(d)

To determine
The mass of fly.

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