Today in chemistry we learned about Concentration which is the amount of solute and amount of solvent some units used for this are g/ml g/l mg/l mg/ml
Solution: a homogeneous mixture Solute: the one present in the smaller amount Solvent : the one present in the bigger amount
The unit we use the most is mol/L. Also known as Molarity.
Molarity = Moles/Volume
Molarity = Moles/Volume only works for aqueous solutions and not gases.
Here are some Examples:
Calculate the Molarity of 2.5mol of HSO3 in 3L solution of [HSO3]
[HSO3] 2.5mol/3L = .83M
How many grams of NaCl are contained in 300ml of .0420M of NaCl solution?
.0420M x .0300 L = .0126 mol
.0126 mol x 58.5g = .737g of NaCl
Heres a video on how to calculate Molarity
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