It's the reaction of molicules
hope this helps and mayb a brinaly? and if i get this wrong go to my pf and i will answer at least ten quesstions free!
Answer:
The molarity of ethanol is 5.8*10⁻³ M.
Explanation:
Molar concentration is a measure of the concentration of a solute in a solution, be it some molecular, ionic or atomic species.
Molarity or Molar Concentration is the number of moles of solute that are dissolved in a certain volume. It is calculated by dividing the moles of the solute by the volume of the solution:
Molarity is expressed in units .
Being the molar mass of ethanol 46 , then the number of moles that 40 grams of ethanol contain is calculated by:
So, being:
- number of moles of solute= 0.87 moles
- volume 150 L
Replacing in the definition of molarity:
Solving:
Molarity= 5.8*10⁻³ M
<u><em>The molarity of ethanol is 5.8*10⁻³ M.</em></u>
The answer is B. Suspension. Suspension mixtures are composed of two or more materials mixed together wherein the solute particles are usually larger than those found in a solution or colloid. In cases of solid-fluid suspension mixtures, the solid solute particles tend to settle at the bottom of the mixture after some time.
If you add heat to matter the atoms that make up the matter will begin to move faster