Calculate ph value of soft drink having hydrogen ion concentration equal to 3x10^-5.
pH = -log(H^+)
To calculate the pH value, you can use the formula:
pH = -log[H+]
Given that the hydrogen ion concentration ([H+]) is 3x10^-5, you can substitute this value into the formula:
pH = -log(3x10^-5)
Now let's calculate it step-by-step:
Step 1: Take the negative logarithm of the hydrogen ion concentration:
log(3x10^-5) = -log(3) - log(10^5) = -log(3) - 5
Step 2: Calculate the value of log(3):
log(3) = 0.477
Step 3: Substitute the value back into the equation:
pH = -(0.477) - 5 = -0.477 - 5 = -5.477
Therefore, the pH value of the soft drink with a hydrogen ion concentration of 3x10^-5 is approximately 5.477.
To calculate the pH value of a solution, you can use the equation:
pH = -log[H+]
In this equation, [H+] represents the concentration of hydrogen ions in the solution.
Given the hydrogen ion concentration of the soft drink, which is 3x10^-5, we can substitute this value into the equation:
pH = -log(3x10^-5)
To calculate the pH using this equation, we need to evaluate the logarithm. In mathematics, logarithms can be calculated using a scientific calculator or by using logarithm tables. Assuming you do not have these tools readily available, let me proceed to calculate the pH value step by step:
1. Take the logarithm of the given hydrogen ion concentration:
log(3x10^-5) = log(3) + log(10^-5)
2. Apply logarithm properties:
log(3) + log(10^-5) = log(3) - 5
3. Evaluate the logarithm of 3 using a calculator or logarithm table. Let's assume it's equal to 0.48.
log(3) - 5 = 0.48 - 5 = -4.52
4. Finally, apply the negative sign and round the decimal to two decimal places since pH is typically represented with two decimal places:
pH = -(-4.52) = 4.52
Therefore, the pH value of the soft drink with a hydrogen ion concentration of 3x10^-5 is approximately 4.52.