Bug in the quiz.

Robw1 · #1 01/05/2006, 12:45 AM

While reviewing the questions (how else can I learn from my mistakes

) I noticed this little bug.

34. The pH of saturated limewater (calcium hydroxide or calcium oxide dissolved in freshwater, also known as kalkwasser in German) at 25Â° C (77Â° F) is closest to:

A. 8.25
B. 9.2
C. 12.15
D. 12.45

Answer 34. Incorrect. You answered D. The pH of saturated limewater at 25Â° C (77Â° F) is 12.45. It is actually an established pH standard. The correct answer is D.

I answered D and was marked incorrect.

mysis · #2 01/05/2006, 12:48 AM

LOL, me to

jeffbrig · #3 01/05/2006, 01:04 AM

It marked D correct for me....

mbbuna · #4 01/05/2006, 02:43 AM

me to! Now i want a retest for sure!!!!!!!!!

tatuvaaj · #5 01/05/2006, 03:12 AM

Same "problem" here! I did manage to get the "Senior Reef Chemist" rating though... and I read the nitrite in question 33 as nitrate

lduncan · #6 01/05/2006, 03:23 AM

Yip on 34 my answer of "D" was marked as incorrect, but then it said "D" was the correct answer.

Layton

Randy Holmes-Farley · #7 01/05/2006, 08:53 AM

Sorry about the bug.

We had knwon of this bug and went around and around trying to fix it. Gregt had been writing the code, and when he departed others had to later fill in to help fix it, and maybe it didn't get fixed correctly, although I tried it several times and it seemed to work for me.

Anyway, sorry about that. Just boost your score accordingly if you know the answer was 12.45.

Skipper · #8 01/05/2006, 09:52 AM

Hey folks. Quite possibly I've made a webmastering error. Thanks for letting us know. We'll get it fixed.

Skipper · #9 01/05/2006, 09:53 AM

BTW, Rob. If you had answered D correctly, you'd have been ok answering D.

Everyone knows the correct answer was D.

Randy Holmes-Farley · #10 01/05/2006, 10:03 AM

Thanks, Skipper.