a student needs 0.015mol of iodine crystals (I2) , for an experiment what mass of iodine crystals should the student obtain?
The molar mass of iodine (I2) is 253.8 g/mol.
0.015 mol of iodine crystals = 0.015 mol x 253.8 g/mol
= 3.807 g of iodine crystals.
Therefore, the student should obtain 3.807 g of iodine crystals for the experiment.
To determine the mass of iodine crystals needed, we can use the molar mass of iodine (I2), which is 253.8 g/mol.
Step 1: Convert moles to grams using the formula:
Mass (g) = Moles × Molar Mass
Mass (g) = 0.015 mol × 253.8 g/mol
Step 2: Perform the calculation:
Mass (g) = 3.807 g
Therefore, the student should obtain approximately 3.807 grams of iodine crystals for the experiment.