A biochemist prepares a 1 L solution using 12.1 g of Tris Buffer. The final concentration is 0.1 M. What is the MW of Tris Buffer?

The molecular weight of tris buffer is 121 g/mol

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

where,

n = moles of solute

= volume of solution in L

moles of tris buffer =

Now put all the given values in the formula of molality, we get

Therefore, the molecular weight of tris buffer is 121 g/mol

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