A solution is labeled "0.749 M HCN." What are the following in the solution? Express your...

A solution is labeled "0.749 M HCN." What are the following in the solution? Express your answers to three significant figures even when only two are valid. Acid-base table

[HCN] =

[H30 ^1+] =

[CN ^1-] =

pH =

Expert Solution

	HCN
Initial concentration (M)	0.749	0	0
Change (M)	-x	x	x
Equilibrium concentration (M)	0.749-x	x	x

Since Ka is small, x is small can 0.749-x can be approximated to 0.749

queen_honey_blossom answered 3 years ago

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