<span>Given:
acid-dissociation constants of sulfurous acid</span>:
Ka1 = 1.7 * 10^(-2)
Ka2 = 6.4 * 10^(-8) at
25.0 °C.
aqueous solution of
sulfurous acid = 0.163 M
x² / (0.163 - x) = 1.7 * 10^(-2)
You simplify it to:
<span>x² / (0.163) = 1.7 *10^(-2) </span>
x = 0.052640 M
pH = 1.28
<span>
So, the pH of a 0.163 M aqueous solution of sulfurous acid is 1.28.</span>
To add, aqueous solutions of sulfur dioxide purpose
are as disinfectants and reductant, as are solutions of sulfite<span> salts
and </span>bisulfite. By accepting another oxygen<span> atom, they
are </span>oxidised to sulfuric
acid or sulfate.
The answer is; D,
Because these rocks cool slowly, the rocks are able to form large crystals hence giving the rock a coarse texture. These crystals are big enough to be viewed with the unaided eye. The opposite is extrusive rocks that form on the surface of the earth. These cool rapidly and form fine-grained textured rocks because of the small crystals formed during the rapid cooling process.
Hello There!
We will have water (H2O)
So if you drink a glass of water, you drink a glass of H2O.
Hope it helps! :)
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Answer:
Like dissolves like" is an expression used by chemists to remember how some solvents work. It refers to "polar" and "nonpolar" solvents and solutes. Basic example: Water is polar. Oil is non polar. ... Like dissolves like, that means polar dissolves polar, so water dissolves salt.
Explanation:
Imagine a chemist is in the lab and trying to make some chemical reactions happen. In one reaction she reacts chemicals in an exothermic reaction and there is an increase in entropy. A second chemical reaction she is trying to run is endothermic and there is a decrease in entropy. Which of the two reactions is more likely to occur and why?
