Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.

# Sulfur forms two chlorides ##"S"_2"Cl"_2## and ##"SCl"_2##.The equivalent mass of sulfur in ##"SCl"_2## is ##"16 g"## .The equivalent weight of sulfur in ##"S"_2"Cl"_2## is ?

##"32 g"##

A substance's **equivalent mass** actually depends on the reaction in which said substance is involved.

See this Wikipedia article for more details on how equivalent mass works.

In your case, the equivalent mass of sulfur, ##"S"##, will be the mass that **combines** with ##"35.5 g"## of chlorine, ##"Cl"##, which is the mass of **one mole** of chlorine.

For **every mole** of sulfur dichloride, ##"SCl"_2##, you get

**one mole**of sulfur, ##1 xx "S"##**two moles**of chlorine, ##2 xx "Cl"##

Since sulfur has a molar mass of approximately ##"32 g mol"^(-1)##, you can say that a mole of sulfur dichloride contains

- ##1 xx "32 g"## of sulfur
- ##2 xx "35.5 g" = "71 g"## of chlorine

So, if ##"32 g"## of sulfur combined with ##"71 g"## of chlorine, it follows that ##"35.5 g"## of chlorine combined with

##35.5 color(red)(cancel(color(black)("g Cl"))) * "32 g S"/(71color(red)(cancel(color(black)("g Cl")))) = "16 g S"##

This is why the **equivalent mass** of sulfur in sulfur dichloride is said to be ##"16 g"##.

Now, in disulfur dichloride, ##"S"_2"Cl"_2##, **one mole** contains

**two moles**of sulfur, ##2 xx "S"##**two moles**of chlorine ,##2 xx "Cl"##

This time, you have ##2 xx "32 g"## of sulfur combine with ##2 xx "35.5 g"## of chlorine, which means that ##"35.5 g"## of chlorine will combine with

##35.5color(red)(cancel(color(black)("g Cl"))) * (2 xx "32 g S")/(71color(red)(cancel(color(black)("g Cl")))) = color(green)(|bar(ul(color(white)(a/a)color(black)("32 g S")color(white)(a/a)|)))##

Therefore, the **equivalent mass** of sulfur in disulfur dichloride will be ##"32 g"##.

You'll sometimes see this referred to as the mass of **one equivalent** of sulfur, which in this context is simply another term used to denote the mass of sulfur that combines with ##"35.5 g"## of chlorine.