Question

Use the ion product of water ($K_w = 1.012 \times 10^{-14}$) to answer the following questions. Be sure each of your answer entries has the correct number of significant figures. Part 1 of 2 What is the $pK_b$ of the formate ion, $HCOO^-$? The $K_a$ of formic acid is $1.8 \times 10^{-4}$. $pK_b = 5.62 \times 10^{-11}$ Part 2 of 2 What is the $pK_a$ of the hydrazinium ion, $H_2NNH_3^+$? The $K_b$ of hydrazine is $1.3 \times 10^{-6}$. $pK_a = 8.0 \times 10^{-9}$

          Use the ion product of water ($K_w = 1.012 \times 10^{-14}$) to answer the following questions. Be sure each of your answer entries has the correct number of significant figures.

Part 1 of 2

What is the $pK_b$ of the formate ion, $HCOO^-$? The $K_a$ of formic acid is $1.8 \times 10^{-4}$.

$pK_b = 5.62 \times 10^{-11}$

Part 2 of 2

What is the $pK_a$ of the hydrazinium ion, $H_2NNH_3^+$? The $K_b$ of hydrazine is $1.3 \times 10^{-6}$.

$pK_a = 8.0 \times 10^{-9}$

Use the ion product of water (Kw = 1.012 × 10^-14) to answer the following questions. Be sure each of your answer entries has the correct number of significant figures.

Part 1 of 2

What is the pKb of the formate ion, HCOO^-? The Ka of formic acid is 1.8 × 10^-4.

pKb = 5.62 × 10^-11

Part 2 of 2

What is the pKa of the hydrazinium ion, H2NNH3^+? The Kb of hydrazine is 1.3 × 10^-6.

pKa = 8.0 × 10^-9

Added by Becky L.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Qbs Educator

03/04/2022

Step 1

pKb = -log(Kw/Ka) pKb = -log(1.012x10^-14/1.8x10^-4) pKb = -log(5.62x10^-11) pKb = 10.25 Show more…

Show all steps

Thanks for your feedback!

Use the ion product of water (K_(w))=(1.012 imes 10^(-14)) to answer the following questions. Be sure each of your answer entries has the correct number of significant figures. Part 1 of 2 What is the pK_(b) of the formate ion, (H(C)/(O)O ^(()-)? The K_(a) of formic acid is 1.8 imes 10^(-4). pK_(b)= Part 2 of 2 What is the pK_(a) of the hydrazinium ion, H_(2)NNH_(3)^(+)? The K_(b) of hydrazine is 1.3 imes 10^(-6). pK_(a)=8.0 imes 10^(-9)◻◻ imes 10 Use the ion product of water (K, = 1.012 10-14) to answer the following questions. Be sure each of your answer entries has the correct number of significant figures. Part1of2 What is the pK, of the formate ion, HCOO~? The K, of formic acid is 1.8 10-4 pKh= 5.62x10 0.0 X 5 Part2of2 What is the pK, of the hydrazinium ion, H,NNH? The K of hydrazine is 1.3 10-6 pK, 8.010 5