1 Answer

Minthos · Answer 1 · 2021-09-08T22:33:50+0000

Moles of Sr²⁺ = 0.3375

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

$\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}$

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

So to find the number of moles can be expressed as

$\boxed{\bold{n=V* M}}$

Strontium phosphide (Sr₃P₂)

Sr₃P₂ ⇒ 3Sr ²⁺ + 2P³⁻

$\tt 0.45~M * 0.25~L=0.1125$

mol ratio Sr₃P₂ : Sr ²⁺ = 1 : 3

$\tt (3)/(1)* 0.1125=0.3375$

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