Nacl is a formula unit made of 1 sodium (na) atom and 1 chlorine (cl) atom. what is the average mass of 1 molecule of naci?

The average mass is 58.44 g

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.

its first and third is your answer i did the qustion the fourth isnt right