Question #94bfd

1 Answer
anor277
Jan 21, 2017

1.73*mol*L^-1" with respect to sodium ion."

Explanation:

We sum up the the total number of moles of Na^(+).

"Moles" = "concentration" xx "volume"

=25.0xx10^-3Lxx1.15*mol*L^-1+2xx25.0xx10^-3Lxx1.15*mol*L^-1=8.63xx10^-2*mol with respect to sodium ion.

And this is dissolved in a volume of 50.0*mL.

The new concentration is thus, (8.63xx10^-2*mol)/(50.0*mL)=1.73*mol*L^-1 with respect to sodium ion.

Why did I multiply one of the starting concentrations by 2?

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