a student needs 0.015mol of iodine crystals , for an experiment what mass of iodine crystals should the student obtain?
The molar mass of iodine is 126.9 g/mol.
So, to find the mass of 0.015 mol of iodine crystals, we can use the following formula:
mass = moles x molar mass
mass = 0.015 mol x 126.9 g/mol
mass = 1.904 g
Therefore, the student should obtain 1.904 g of iodine crystals for their experiment.
To determine the mass of iodine crystals needed, you need to use the molar mass of iodine (I) and convert the given molar quantity (0.015 mol) into grams.
The molar mass of iodine (I) is approximately 126.90 g/mol.
To calculate the mass:
Mass (g) = Number of moles (mol) × Molar mass (g/mol)
Substituting the values:
Mass (g) = 0.015 mol × 126.90 g/mol
Calculating the result:
Mass (g) = 1.9045 g
Therefore, the student should obtain approximately 1.9045 grams of iodine crystals for the experiment.