205k views
16 votes
A student needs 0.250 moles of iodine

('don't forget it's a BrINCIHOF - diatomic!)
for a reaction. What mass of iodine would
the student need to measure out for the
reaction
31.7 g
127 g
2549
63.5 g

User Falyoun
by
8.0k points

1 Answer

5 votes

Answer:

63.5 g

Step-by-step 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.

User Levi Rosol
by
7.0k points

Related questions

1 answer
5 votes
260 views
asked Jun 14, 2024 11.3k views
Eggy asked Jun 14, 2024
by Eggy
7.6k points
2 answers
5 votes
11.3k views