The common-ion effect can be applied to a solution of lead thiocyanate when potassium thiocyanate is added. Since there is a common ion, the cyanate ion, the molar solubility of lead thiocyanate goes down in the presence of potassium thiocyanate. Calculate the molar solubility of lead thiocyanate in 0.600 M KSCN.

5.56 ×10⁻⁵M

Explanation:

The formula for lead thiocyanate = Pb(SCN)₂ and for  potassium thiocyanate, we have KSCN.

The standard solubility product of Pb(SCN)₂ is known to be 2.0 × 10⁻⁵

Since there are 0.600 M of KSCN, definitely if KSCN dissociates we have:

KSCN         ⇄         K⁺       +        SCN⁻

0.600M               0.600 M          0.600 M

On the other hand, if Pb(SCN)₂ dissociates ; we have:

Pb(SCN)₂          ⇄         Pb⁺       +        2SCN⁻

x                                     x                     0.600 M

 = x(0.600)²

2.0 × 10⁻⁵ = x (0.36)

x =

x = 5.56 × 10⁻⁵ M

∴ The Molar Solubility of lead thiocyanate in 0.600 M KSCN = 5.56 × 10⁻⁵ M

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation:

chemistry sucks a**

explanation: