Does any solid Ag_2CrO_4 form when 2.7\times10^{-5} g of AgNO_3 is dissolved in 15.0 ml of 4.0\times10^{-4}\ K_2CrO_4?

CheemnCatelvew

CheemnCatelvew

Answered question

2021-05-12

Does any solid Ag2CrO4 form when 2.7×105 g of AgNO3 is dissolved in 15.0 ml of 4.0×104 K2CrO4?

Answer & Explanation

Talisha

Talisha

Skilled2021-05-14Added 93 answers

Balanced reaction-:
2AgNO3(aq)+K2CrO4(aq)Ag2CrO4(s)+2KNO3(aq)
Moles of AgNO3=mass(g)molar mass (g/mol)=2.7×105g169.86 gmol
=1.589107 mol
Molarity of Ag+=moles of soluteV(L)=1.589107 mol0.015 L=1.059105M
Ksp of Ag2CrO4
=[Ag+]2[CrO42]
1.21012=[2s]2[s]
4s3=1.21012
s=6.69105 M
Molarity of Ag+ is less than the molar solubility thus ppt will not occur

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