It could be a bit tough for the beginners to make solutions involving Molar concentrations. People might get confused and internet search might confuse them further. Actually, it is very easy and straight forward. If you apply the below fomula (easy to remember), you get to calculate the amount of solutes (weight in grams).
A = VMG
1000
A = The amount (weight) that you want to calculate to make up the Molar solution (in this formula, always in gm or grams)
V = The volume of the solution that you intend to prepare (in this formula, always in ml or milli litre)
M = The molarity (you would know it as 1M or 2M or 0.1M or anything that you are looking
G = Gram molecular weight of the compound (you can find it on the chemical bottle in your lab- it might say formula weight or molecular weight)
For example : Make or prepare 500ml of 0.1M NaCl
A = 500 x 0.1 x 58.44 = 2.922 gms
1000
So you take 2.922gms of NaCl in 500ml of water to get 0.1M solution of sodium chloride
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