What is the mass in grams of 2.48x10^22 atoms of oxygen?

I think you take that then convert to moles then covert that to grams

1 mol = 6.02 x 10²³ atoms

*6.02 x 10²³ is Avogadro's number and you will have to use it to solve this.

# grams oxygen = 2.48 x 10²² atoms x 1 mol x 16.00 g O ÷ 6.02 x 10²³ atoms ÷ 1 mol O = 0.659 grams O

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.