Answer:
pH = 4.09
Explanation:
molarity of oxalic acid in the solution
= 0.1 x 25 / (25 + 35)
= 0.0417 M
molarity of NaOH in the solution
= 0.1 x 35 / (25 +35)
= 0.0583 M
H2C2O4 + NaOH -------------------> NaHC2O4 + H2O
0.0417 0.0583 0 0
0 0.0166 0.0417
now second acid -base titration
NaHC2O4 + NaOH -------------------> Na2C2O4 + H2O
0.0417 0.0166 0 0
0.0251 0 0.0166 ---
now
pH = pKa2 + log [Na2C2O4 / NaHC2O4]
pH = 4.27 + log (0.0166 / 0.0251)
pH = 4.09
Answer:
bamboo is the biggest/tallest grass in the world
The answer to this is solved through stochiometry: the answer is this: 0.0833mol
I believe the choices
in this question are:
A. Lowering the
temperature of the reaction. <span>
B. Lowering the enthalpy of the reaction.
C. Decreasing the volume of the system.
D. Adding oxygen gas.
E. Decreasing the pressure of the system. </span>
<span>From the choices
above, A, B, and D will result in creation of more Cl2 gas.</span>