A 2.30 gram sample of iron combines with chlorine gas to form an iron chloride with the weight of 7.25 grams. what is the weight of chlorine added?

Wouldn't that be 7.25-2.30 = ?

However, the numbers don't add up. 2.30 g Fe should form a 5.22 g sample if FeCl2 or 6.68 g sample for FeCl3.

To find the weight of chlorine added, we need to determine the weight of chlorine that combined with the iron to form iron chloride.

Step 1: Find the difference in weight before and after the reaction.
The weight of iron before the reaction is 2.30 grams.
The weight of iron chloride after the reaction is 7.25 grams.

Step 2: Calculate the weight of chlorine added.
Weight of chlorine added = Weight of iron chloride - Weight of iron
Weight of chlorine added = 7.25 grams - 2.30 grams

Step 3: Perform the subtraction.
Weight of chlorine added = 4.95 grams

Therefore, the weight of chlorine added is 4.95 grams.

To find the weight of chlorine added, we need to subtract the weight of the iron from the total weight of the iron chloride.

First, determine the weight of chlorine:
Weight of Iron Chloride = Weight of Iron + Weight of Chlorine

Given:
Weight of Iron = 2.30 grams
Weight of Iron Chloride = 7.25 grams

Substituting the values into the equation:
7.25 grams = 2.30 grams + Weight of Chlorine

To find the weight of chlorine, we can rearrange the equation:
Weight of Chlorine = Weight of Iron Chloride - Weight of Iron

Weight of Chlorine = 7.25 grams - 2.30 grams

Calculating the result:
Weight of Chlorine = 4.95 grams

Therefore, the weight of chlorine added is 4.95 grams.