What is the ph of a buffer that is 0.6 m hf and 0.2 m naf? the ka of hf is 6.8 × 10−4. view available hint(s) what is the ph of a buffer that is and ? the of is . 2.69 3.50 3.17 3.65

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.