Normality Calculator: Online Tool for Solution Concentration

Molarity Calculator / Molality Calculator / Dilution Calculator / Normality Calculator

Mass of solute (m): (i) Equivalent weight of solute (E): (i) Volume of solution (S): (i) Normality (N):

Our normality calculator is a handy tool that helps you figure out how many equivalents of a solute are in one liter of solution.

What Is Normality?

Normality, also called equivalent concentration, is a way to measure how concentrated a solution is. It’s related to another measure called molarity (you can check out our molarity calculator for that), but normality uses something called an equivalence factor. This concept is useful in fields like medical science and chemistry to report solution concentrations. This article explain what normality means and how to calculate it, including comparing normality to molarity.

Normality Definition and Units

Normality (N), or normal concentration, measures the concentration of a solute in terms of gram equivalents per volume of solution. If you have ‘x’ grams of solute, the formula for normality is:

N = (Mass of solute / Equivalent weight) × Volume of solution

The mass of the solute is usually in grams (g).
The equivalent weight is a specific value for the solute, often in equivalents per gram (eq/g).
The volume of the solution is typically in liters (l).

Normality vs. Molarity

Molarity (M) and normality (N) both measure concentration, but they’re different. Molarity is the moles of a substance per liter of solution, while normality is the equivalent weight of the substance per liter. You can connect them with this equation:

N × Equivalent weight = M × Molecular mass

Find out more about Normality vs Molarity on varsitytutors.com

How to Use the Normality Calculator

Now that you know what normality is, let’s see how to use the calculator. For example, let’s calculate the normality of 1 gram of sodium bicarbonate dissolved in 3 liters of water.

Here’s how:

Find the calculator at the top of this page or access it from this link: https:/molaritycalc.com/normality-calculator
Enter the Mass of Solute.
Then, Type the Equivalent Weight.
The last step is to specify the Volume of Solution.
Finally, Check the Answer: Look at the box that says “Normality (N):” with “eq/l” inside. It will show a number, like “1,” as soon as you type in the other numbers. This is your answer!

N = (1 / 52.95) × 3 = 0.006295 eq/L

So, the normality of this solution is 0.006295 eq/L. You can also use the calculator to figure out how much solute you need to get a specific normality, like 1 N.

Don’t forget to spread the love. Please share the tool with your friends and classmates.