A solution is made by dissolving 0.40 g of solid sodium hydroxide in 250cm of water. It is found that 28.2 cm of this solution is needed to completely neutralise a 40.0cm sample of ethanoic acid (CH3COOH) of unknown
concentration.
Calculate the concentration of ethanoic acid.

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.

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este