0.25 grams of magnesium chloride are dissolved to make 50 milliliters of solution. What is the molarity of the solution?

1 Answer
anor277
Apr 9, 2018

#[MgCl_2(aq)]-=0.0525*mol*L^-1#

Explanation:

We take the quotient....

#"molarity"="moles of solute"/"volume of solution"#

#[MgCl_2]=((0.25*g)/(95.21*g*mol^-1))/(50*mLxx10^-3*L*mL^-1)=0.0525*mol*L^-1#

And #[Cl^(-)]=0.1050*mol*L^-1#...why?

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