The diameter of a hydrogen atom is 212pm. Find the length in kilometers of a row of 6.02×1023 hydrogen atoms.

0 votes
asked Sep 5, 2013 in Mathematics by hunter (42 points)
    

1 Answer

0 votes

You can simply multiply the diameter of the Hydrogen atom with the total numbers.

So, 6.02*1023*212 pm

 = 6.02 * 1023 * 212 * 10^-12 meters

= 1305593.52 * 10^-12 meters

= 1305593.52 * 10^-12 * 10^-3 km                 [1km = 1000m]

= 1.30559352 * 10^-9 km

= 1.31 * 10^-9 km             [Approximating]

answered Nov 21, 2013 by SubjectTeachers1 ~Rookie~ (90 points)

Related questions




...