Chemistry: How many moles of naf must be dissolved in 1.00 liter of a saturated solution of pbf2 at 25°c to reduce the [pb2+] to 1.0 × 10–6 m? the ksp for pbf2 at 25 °c is 4.0 × 10–8?

THIS IS WHAT I GOT molality = 240 mol kg−1Explanation:HOPE THIS HELPS :)...

How many moles of naf must be dissolved in 1.00

Ответ:

s6ties

14.03.2022

The reaction involved in the given question is
$PbF_{2}$ → $Pb^{2+}$ + $2F^{-}$

Ksp= [ $Pb^{2+}$ ] [ $F^{-}$ ]^2
4.0 × $10^{-8}$ = 1× $10^{-6}$ [ $F^{-}$ ]^2

∴[ $F^{-}$ ] = 0.2 mole

Thus, 0.2 mole of NaF must be dissolved in 1l of sat. solution of $PbF_{2}$ to reduce $Pb^{2+}$ to 1 X 10^(-6) M

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Ответ:

applejulianamoreno

06.09.2021

Chemistry

THIS IS WHAT I GOT

molality = 240 mol kg

−

Explanation:

HOPE THIS HELPS :)

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How many moles of naf must be dissolved in 1.00 liter of a saturated solution of pbf2 at 25°c to reduce the [pb2+] to 1.0 × 10–6 m? the ksp for pbf2 at 25 °c is 4.0 × 10–8?

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