if one sugar cube has an edge that is 1.2cm in length, how many sugar cubes are required to carpet a house that has 1500 square feet?
2006-11-01 16:46:06 · 3 answers · asked by kyle k 1 in Science & Mathematics ➔ Mathematics
1 sq. ft = 12 inches x 12 inches = 144 sq. inches x 2.54 cm/inch x 2.54 cm/inch = 929 sq. cm. / sq. ft.
1500 sq. ft * 929 sq. cm / sq. ft = 1,393,545.6 sq. cm.
A sugar cube is 1.2 cm x 1.2 cm = 1.44 sq. cm.
Divide the two to figure the number of sugar cubes:
1,393,545.6 / 1.44
You can fit 967,740 sugar cubes on the floor of a 1500 sq. ft house.
This is much less than Avogadro's number which is 6.0221415 x 10^23.
2006-11-01 17:16:41 · answer #1 · answered by Puzzling 7 · 1⤊ 0⤋
area of one face of sugar=.012^2=1.44*10^-4 sq.metre
area of the floor=1500*(3*2.54)^2 sq.metres
divide second equation by the first to get ur answer [right now i don't have access to any pen ,paper or calculator]
avagadro's no. is 6.0223*10^23 [equal amount of gases at 273kelvin and 1 atmosphere pressure contains this much molecules]
this is true for atoms ,ions elecrons ,protons and so on under the framework of the same conditions mentioned above
2006-11-02 00:52:13 · answer #2 · answered by K R 2 · 0⤊ 1⤋
ummmm avagadro's number is 6.022 times 10 to the 23rd power. It is used in chemistry to find out how many moles are in a atom/molecule
2006-11-02 00:48:04 · answer #3 · answered by //// 3 · 0⤊ 1⤋