Question

section 3
composition, information on ingredients
component name
magnesium hydroxide
synonyms
magnesium hydrate
formula
mg(oh)₂
formula weight
58.34
consider the composition information from the sds. what is the formula weight of this compound?
mg(oh)₂
24.305
58.34
magnesium hydrate

Explanation:

Step1: Analyze the SDS information

The SDS (Safety Data Sheet) for Magnesium Hydroxide shows the "Formula Weight" as 58.34. We need to match this with the given options.

Step2: Evaluate the options

• The first option is the formula ($\ce{Mg(OH)2}$), not the formula weight.
• The second option (24.305) is the atomic weight of Magnesium, not the formula weight of the compound.
• The third option (58.34) matches the formula weight given in the SDS.
• The fourth option is a synonym (Magnesium Hydrate), not the formula weight.

Answer:

The option with "58.34" (the third option in the list of choices, which is labeled as 58.34 among the radio buttons). To present it as per the multiple - choice format: The correct option is the one with "58.34" (the third radio button option with text "58.34"). If we assume the options are labeled as follows (from top to bottom):

1. $\ce{Mg(OH)2}$
2. 24.305
3. 58.34
4. Magnesium Hydrate

Then the answer is: 3. 58.34