Answer:
Diffusion is driven by differences in concentration. When chemical substances such as perfume are let loose in a room, their particles mix with the particles of air. Diffusion in gases is quick because the particles in a gas move quickly. It happens even faster in hot gases because the particles of gas move faster.
The mole concept will most likely be used in. determining how many ozone molecules are lost in the atmosphere.
5H2O contain 9 moles of oxygen atom.
Answer:
mol/ L
Explanation:
Measure of [H₃O⁺] , i.e hydrogen ion concentration, indicates the acidity of the solution. The greater the concentration, the greater is the acidity. [H₃O⁺], this quantity can range from 10⁻¹ to 10⁻¹⁴ at ambient temperature(298K). This range is always temperature dependent.
Measure of acidity of a solution is expressed more conveniently using the notation of pH.
Using the above formula
mol/ L