What is a molarity calculator used for?
This molarity calculator is a tool for converting the mass concentration of any solution to molar concentration (or recalculating the grams per ml to moles). You can also calculate the mass of a substance needed to achieve a desired molarity.
What is the abbreviation for molarity?
Molarity has units of , which can be abbreviated as molar or (pronounced "molar" ). The molar concentration of the solute is sometimes abbreviated by putting square brackets around the chemical formula of the solute.
What is the difference between mass and molarity?
Mass is the mass of the solute (substance) in grams and volume is the total volume of the solution in liters. Molarity has many applications. One of them is to calculate the dilution of the solution. The unit of molarity is moles per cubic decimeter. They are labeled mol/dm³ and M (pronounced "molar").
How do you find the molarity of a solution?
(1) mol. = V*M. where V = the volume of solution and M = the molarity. The mass of solute can also be determined when a volume V is delivered by noting that the number of moles is equal to the mass, m, divided by the formula mass, FM.
What is molarity?
Molarity is the number of moles of solute per liter of solution. For example, if you dissolve table salt in water, salt is the solute, and water is the solution. One mole of sodium chloride weighs 58.44 grams. If you dissolve 58.44 grams of NaCl in one liter of water, you have a one molar solution, abbreviated as 1M. It is important to know, that the volume of solution is measured after the solute is dissolved, not before. Also, don’t confuse molarity with molality, which is slightly different!
When you see “1M”, you read that aloud as a “1 molar solution”.
Does anyone have some sort of resource that can explain to me what the actual hell are moles/molar calculations?
A mole can be considered to be a unit of measurement, just slightly harder to convert between.
You know that to go from grams to kilograms you multiply by a thousand, well to go from grams to moles you divide by the relative atomic/formula mass from the periodic table.
A mole, or avagadro's constant is just a number. It is the number of atoms of an element in a particular mass of that element and it was all based on carbon. So, in 12 grams of carbon there are 6x1023 atoms of carbon. In 14 grams of nitrogen there are 6x1023 atoms of nitrogen.
The reason we convert to moles is because one gram of hydrogen doesn't react with one gram of chlorine to make Hydrochloric Acid, but one atom of hydrogen does react with one atom of chlorine to make hydrogen chloride. When we convert to moles we are converting a known mass of an element into a number of atoms so we can use that number to do calculations relating to that reaction.
Typically in the GCSE you use moles to work out the empirical formula of a compound, that is the simplest whole number ratio of atoms of each element in a compound. Moles must be used because it's a ratio of atoms not a ratio of mass.