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The pH scale for acidity is defined by pH = − log₁₀[H⁺] where [H⁺] is the concentration of hydrogen ions measured in moles per liter (M). A solution has a pH of 2.55. Find the hydrogen ion concentration.
Answer: -
0.003 M
Explanation: -
pH = − log₁₀[H⁺]
Thus the hydrogen ion concentration [H⁺] = 
= 
= 0.003 M
The solution could be described like a saturated and concentrated solution.
<h3>Solutions</h3>
Dissolution of solutions can occur in certain ways. These ways depend on the solvent dilution coefficient and the amount of solute.
If the amount of solute is less than the solvent can dissolve, the solution is unsaturated.
If the amount of solute is exactly the same, the solution is saturated.
If the amount is greater, the solution is supersaturated.
So, since the amount of solute is exactly equal to the amount that the solvent can dissolve, the solution is saturated and concentrated.
Learn more about solutions in: brainly.com/question/202460
Answer:
r² x h
Explanation:
A can is cylindrical in nature. Using the formula of the volume of the can, we can find this unknown volume.
The volume of cylinder is given as:
Volume of a cylinder = Area x height
Volume of a cylinder = r² x h
Therefore density of the can;
Density = 
The best description for the relationship between the products and the reactants in an exothermic reaction is C. The potential energy of the products is less than the potential energy of the reactants.
