A solution of HNO3 has a pH of 4.5, What is the molarity of HNo3?
dude I actually need the answer stop saying balls
Well, pH 4.5 sounds like a party where the acidic compounds are having a ball! Now, let's calculate the molarity of HNO3.
The pH scale measures the concentration of hydrogen ions (H+) in a solution. Take a seat and get ready for some fun algebra. The formula for pH is given by:
pH = -log[H+]
To convert the pH of 4.5 to [H+], we need to use some mathematical magic. Let's start by rearranging the formula:
[H+] = 10^(-pH)
[H+] = 10^(-4.5)
[H+] = 3.16 x 10^(-5) M
So, the molarity of HNO3 is approximately 3.16 x 10^(-5) M. Don't forget to bring your pH meter to the next HNO3 party!
The pH of a solution is a measure of its acidity or basicity. It is defined as the negative logarithm (base 10) of the concentration of hydrogen ions in the solution. The equation relating pH to hydrogen ion concentration can be expressed as pH = -log[H+].
In this case, the pH is given as 4.5. To find the hydrogen ion concentration, we need to take the antilogarithm of the negative pH value.
First, convert the pH value to its numerical value by removing the negative sign: pH = 4.5.
To calculate the hydrogen ion concentration, we need to find the antilogarithm. Since the base of the logarithm is 10, we can use the formula [H+] = 10^(-pH).
Therefore, [H+] = 10^(-4.5).
Now we have the hydrogen ion concentration. However, this is equal to the concentration of HNO3 since HNO3 dissociates to release H+ ions.
So, the molarity of HNO3 is given by its concentration, which is equal to the hydrogen ion concentration:
Molarity = [HNO3] = [H+] = 10^(-4.5).
Thus, the molarity of HNO3 is 10^(-4.5).
To determine the molarity of HNO3 given its pH value, you can use the formula for pH:
pH = -log[H+]
Here, [H+] represents the concentration of hydrogen ions in the solution. Since HNO3 dissociates completely in water, the concentration of HNO3 is equal to the concentration of hydrogen ions.
Step 1: Calculate the concentration of hydrogen ions ([H+]) from the pH value.
Using the formula: [H+] = 10^(-pH), we can substitute the given pH of 4.5 into the equation:
[H+] = 10^(-4.5)
Step 2: Calculate the molarity (M) of HNO3.
Molarity (M) is defined as the number of moles of solute per liter of solution. Since HNO3 dissociates into 1 mole of H+ and 1 mole of NO3- ions, the molarity of HNO3 is equal to the concentration of hydrogen ions ([H+]).
M = [H+] = 10^(-4.5)
Now, we can calculate the molarity of HNO3:
M = 10^(-4.5)
Using a scientific calculator, evaluate 10^(-4.5) to get the molarity of HNO3. The answer will be in moles per liter (mol/L) or Molar (M) units.