braphi6338 braphi6338

26-11-2022
Chemistry

Answered

what mass of solid [tex]\mathrm{NaCH} 3 \mathrm{CO} 2[/tex] (molar mass [tex]=82.0 \mathrm{~g} / \mathrm{mol}[/tex] ) should be added to [tex]1.0 \mathrm{~L}[/tex] of [tex]0.50 \mathrm{M} \mathrm{CH} 3 \mathrm{CO} 2 \mathrm{H}[/tex] to make a buffer wit a [tex]\mathrm{pH}[/tex] of [tex]7.21[/tex] ? [tex](\mathrm{pKa}[/tex] of [tex]\mathrm{CH} 3 \mathrm{CO} 2 \mathrm{H}=7.21)[/tex]

Answer :

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