Convert 1.4 x 10^2 pm to cm.
1.4 x 10^2 pm x (1 m/10^9 pm) x (100 cm/m) = ??
That number divided into 1 cm = ??
Os/6.022 x 10^23 is the correct way of doing it BUT you can't possible come out with a 10^24. 3.15 x 10^-22 maybe.
To be technical about it, 109.23 is the AVERAGE mass of all of the Os atoms found in nature. To find the mass of a single atom of Os one should give you the mass number of the isotope (184,189, 190, etc) of Os for which you are to calculate the mass.
The diameter of a neutral neon atom is about 1.4 multiplied by 102 pm. Suppose that we could line up neon atoms side by side in contact with one another. Approximately how many neon atoms would it take to make the distance from end to end 1 cm?
I got 2.4e-8, but it was wrong. What is the correct method for this?
And
What is the mass in grams of a single atom of each of the following elements?
Os
I got 3.16 x 10^24, but got it wrong. I just divided the atomic mass by Av. number.
1 answer