What is the molarity of 90 g of LiF in 4 L of solution? (convert to moles and round answer to 2 decimals)

Explanation:

First of all, knowing the grams we can calculate the moles of LiF: 90g/25,939 mol/g = 3,47 mol

Knowing the moles, we can finally calculate the molarity: 3,47 mol/4 L= 8.67 * 10^-1 M  

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.