Formic acid, HCOOH, is an organic acid that is found naturally in the bodies of some ants. What is the percent ionization of a 0.770 M solution of formic acid if the pK_a value is 3.75?

Please provide your answer with 3 significant figures.

Mieresuur, HCOOH, is 'n organiese suur wat natuurlik in die liggame van sommige miere voorkom. Wat is die persentasie ionisasie van 'n 0.770 M oplossing van mieresuur as die pK_a waarde 3.75 is?

Gee asb jou antwoord met 3 beduidende syfers.

Consider the reaction below, where K = 170 at 298 K. 

At a certain time, 0.015 M NO₂(g) and 0.025 M N₂O₄(aq) are present.

Determine if the reaction is at equilibrium or not. If not, explain briefly which way must the reaction proceed to reach equilibrium.

Beskou die reaksie hieronder, waar K = 170 by 298 K.

Op 'n sekere tyd is 0.015 M NO₂(g) en 0.025 M N₂O₄(aq) teenwoordig.

Bepaal of die reaksie by ewewig is of nie. Indien nie, verduidelik kortliks na watter kant moet die reaksie voortgaan om ewewig te bereik.

If K_c = 65.0 for the reaction 4NOCl 

Provide your answer to 3 significant figures.

As K_c = 65.0 vir die reaksie 4NOCl 

Gee jou antwoord met 3 beduidende syfers.

In an experiment, 0.20 mol Br₂ and 0.20 mol Cl₂ are mixed in a 1.00 L container, and the reaction forms BrCl. If K = 6.25 for this reaction, what is the equilibrium concentration (in mol/L) of BrCl? (Please provide your answer with 2 significant figures.)

In 'n eksperiment word 0.20 mol Br₂ en 0.20 mol Cl₂ in 'n 1.00 L houer gemeng, en die reaksie vorm BrCl. As K = 6.25 vir hierdie reaksie, wat is die ewewigskonsentrasie (in mol/L) van BrCl? (Gee asb jou antwoord met 2 beduidende syfers.)