7. A single ayer of gold atoms form a surface whose dimensions are 1000 angstrom

Question

7. A single ayer of gold atoms form a surface whose dimensions are 1000 angstromsx 1000 angstroms. [1 angstrom = 100m] a) What is the area of this surface in square angstroms? b) What is the surface area in cm2? The units of the chain system of measure usei by surveyors are: 7.92 inches = 1 ink 10 chains 8. 100 links = 1 chain 1 furiong 80 chains = 1 mile The distance of the Kentucky Derby is 1.25 mies. How many fiuriongs is the Kentucky Derby? The displacement of the engine in a Ford Mustang is 5.0 L. Convert this to cubie inches 9.

Explanation / Answer

Formula for area is

A= Length ( width)

= 1000 angstroms ( 1000 anstroms)

=1,000,000angstroms2

(b)

1 angstrom= 10^-8 cm

1,000,000angstroms2 ( (10-8 cm / 1angstrom)2= 1 * 10^-10 cm^2

(8)

distance of kenty durbey is 1.25 miles

d = 1.25 miles ( 80 chaning/ 1 mile) = 100 chains ( 1 furlong/ 10 chains) = 10 furlongs

(9)

one liter is equal to 61.0237441 cubic inches

5.0L(61.0237441 cubic inches) = 305.1187 cubic inches

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