Molar concentration

Imagine you have a big bag of marbles and you want to count how many marbles are in it. You start counting and you see that there are 20 marbles in the bag. This means that the concentration of marbles in the bag is 20 marbles per bag.

Now imagine you have a bag of water and you want to know how many particles are in it. But instead of counting particles, you want to measure the concentration of particles in the water. Scientists use a unit called molar concentration to measure this.

Molar concentration tells us how many molecules of a substance are in a specific amount of liquid. Just like how you counted marbles per bag, we count molecules per liter of liquid. It's like counting how many cookies are in a jar, but instead of cookies, we're counting molecules.

So, if we have a solution with a molar concentration of 2 moles per liter, this means that there are 2 molecules of the substance in every liter of solution. It's kind of like if you had two marbles per bag instead of 20.

Molar concentration is important for scientists to know because it helps them understand how much of a substance is in a solution. For example, if a doctor wants to give a patient a certain amount of medicine, they need to know the molar concentration of the medicine so they can give the right dose.

In summary, molar concentration is like counting how many marbles are in a bag, but instead, we count how many molecules of a substance are in a specific amount of liquid. It helps us understand how much of a substance there is in a solution, which is important in science and medicine.