Answer :
Ksp of CaC₂O₄ is 2.3×10 ^−9. hence, Qsp > Ksp which implies that it will precipitate at pH = 7.
for CaC₂O₄ to precipitate Qsp must be greater than Ksp.
Steps
at PH= 7, H+ can be calculated by:
[H+] = 10^-PH
[H+] = 10^-7
[H+] = 1.0 x 10^-7
Determination of C2O4^-2
C2O4^-2 = K[H2C2O4] / [H+]^2
C2O4^-2 = 9.072 x 10 ^-5
The Qsp value can be calculated by,
Qsp=[Ca^2+][C2O4]
Qsp =[2.6×10^−3][9.072×10 ^−5]
Qsp = 2.4×10 ^−7
Ksp of CaC₂O₄ is 2.3×10 ^−9. hence, Qsp > Ksp which implies that it will precipitate at pH = 7.
What does urine's pH mean?
The pH of 7.0 is neutral. The typical urine pH can range from 4.5 to 8.0, but the average urine sample tests at about 6.0. Your urine has a higher number if it is more basic. Your pee is more acidic the lower the number.
What pH level does healthy urine have?
The typical urine pH range, according to the American Association for Clinical Chemistry, is between 4.5 and 8. A pH of 6 or below is acidic, whereas a pH of 8 or more is basic or alkaline. A urinalysis includes the measurement of urine pH.
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