140.116 u ± 0.001 u is the answer
Answer:
63.5 g
Explanation:
Given data:
Number of moles of iodine needed = 0.250 mol
Mass to be measured = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of diatomic iodine = 253.8 g/mol
by putting values,
0.250 mol = mass / 253.8 g/mol
Mass = 0.250 mol × 253.8 g/mol
Mass = 63.5 g
Thus, student need to be measured 63.5 g of iodine.
The two components of a solution are solvent and solute.
A solution is a homogenous mixture, stable, and the particles are very small.
where are equations dear????
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