  Calculate the surface area in nm^2 of water contained in a watch glass with a diameter of 9.0cm. The area of a circle is calculated as A=r^2(pi)If a molecule of stearic acid covers an area of 0.21 nm^2, how many stearic acid molecules will it take to cover the surface of the watch glass in question 3.

Question

Calculate the surface area in nm^2 of water contained in a watch glass with a diameter of 9.0cm. The area of a circle is calculated as A=r^2(pi)

If a molecule of stearic acid covers an area of 0.21 nm^2, how many stearic acid molecules will it take to cover the surface of the watch glass in question 3.

Step 1

Given,

Diameter = ... help_outlineImage TranscriptioncloseThe formula for calculating the surface area is given below, The surface area (a) = IIr diameter 9.0 cm therefore r 4.5 cm The surface area (a) Ir The surface area (a) 3.14x(4.5cm)2 The surface area (a)= 63.585 cm2 The surface area (a)= 6.3585x10 m2 m 10 nm hence The surface area (a)= 6.3585x1015nm2 The surface area is calculated fullscreen

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