Question

Indicate whether Kc is greater or less than 1 for the following reaction: HPO4$^{2-}$ + HCN $ ightleftharpoons$ H2PO4$^-$ + CN$^-$ Relative acid strength: H$_3$O$^+$ HSO$_4^-$ H$_2$SO$_3$ H$_3$PO$_4$ HF HC$_2$H$_3$O$_2$ H$_2$CO$_3$ H$_2$S HSO$_3^-$ H$_2$PO$_4^-$ HCN NH$_4^+$ HCO$_3^-$ HPO$_4^{2-}$ H$_2$O HS$^-$ OH$^-$ Increasing acid strength Greater than 1 ($K_c$ > 1) Less than 1 ($K_c$ < 1)

          Indicate whether Kc is greater or less than 1 for the following reaction:
HPO4$^{2-}$ + HCN $
ightleftharpoons$ H2PO4$^-$ + CN$^-$
Relative acid strength:
H$_3$O$^+$ HSO$_4^-$ H$_2$SO$_3$ H$_3$PO$_4$ HF HC$_2$H$_3$O$_2$ H$_2$CO$_3$ H$_2$S HSO$_3^-$ H$_2$PO$_4^-$ HCN NH$_4^+$ HCO$_3^-$ HPO$_4^{2-}$ H$_2$O HS$^-$ OH$^-$
Increasing acid strength
Greater than 1 ($K_c$ > 1)
Less than 1 ($K_c$ < 1)

Indicate whether Kc is greater or less than 1 for the following reaction:
HPO4^2- + HCN ightleftharpoons H2PO4^- + CN^-
Relative acid strength:
H3O^+ HSO4^- H2SO3 H3PO4 HF HC2H3O2 H2CO3 H2S HSO3^- H2PO4^- HCN NH4^+ HCO3^- HPO4^2- H2O HS^- OH^-
Increasing acid strength
Greater than 1 (Kc > 1)
Less than 1 (Kc < 1)

Added by Jessica P.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

06/16/2023

Step 1

The stronger acid will donate a proton to the stronger base. Show more…

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Indicate whether Kc is greater or less than 1 for the following reaction: HPO42- + HCN H2PO4 + CN Relative acid strength: H3O+ HSO4 H2SO3 H3PO4 HF HC2H3O2 H2CO3 H2S HSO3 H2PO4 HCN NH4+ HCO3 HPO42- H2O HS OH Increasing acid strength Greater than 1 (Kc > 1) Less than 1 (Kc < 1)