Find the [H3O+] concentration of a 0.316 M formic acid solution. (The value of Ka for formic acid is 1.8Ã10â4.)
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Estimate [H3O+] in a 1.7 M solution of each acid.
Express the molar concentrations to two significant figures separated by commas.
[H3O+]formic, [H3O+]hydrocyanic, [H3O+]perchloric, [H3O+]hypobromous =
What concentration of formic acid will result in a solution with pH=1.90? The value of Ka for formic acid is 1.8Ã10â4.
What is the pH of a buffer that is 0.090 M in formic acid (HCHO2) and 0.150 M in potassium formate (KCHO2)? For formic acid, Ka=1.8Ã10â4.
A. 3.91
B. 3.52
C. 3.97
D. 3.57