C (667) that’s the answer boiii
Answer:
this one is hard
Explanation:
but it's iron because the sodium so yea there u go.
Answer:
CnH2n-2
im pretty sure thats the answer
<h3>
Answer: <em>
pH=2.25 </em></h3>
Explanation:
monochloroacetic acid also means: chloroacetic acid
pKa of monochloroacetic acid= 1.4 x 10^-3 (I believe this should have been given in the problem or perhaps in the textbook)
Formula: pH= pKa + log ( some number in M)
pH= -log (1.4 x 10^-3) + log (0.25M)= 2.85 + -0.602= 2.25
pH= 2.25
I’m pretty sure it’s 7.5 (7 and a half hours) sorry if i’m wrong
