, 26.12.2019DavidsonSaid

# The acid dissociation constant ka of boric acid (h3bo3) is 5.8 times 10^-10. calculate the ph of a 4.4 m solution of boric acid. round your answer to 1 decimal place.

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

The pH of a 4.4 M solution of boric acid is 4.3

Explanation:

at t=0  cM              0             0

at eqm

So dissociation constant will be:

Give c= 4.4 M and = ?

Putting in the values we get:

Also

Thus pH of a 4.4 M solution is 4.3

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