9. Arecent earthquakce measured 6.8 on the Richter scale- How many mmes mnore
intense was this earthquake than an earthquake thatmeasured 生3.on the Richter
Scale? と
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はを 1 / イン
2 c (3 7の クンァ
10.Find the concentration of hydrogen ions, [HH], for vinegar wiFh ap持=3.L
3 ッイ 2
ブ 6
ア
MA! = 0 .ら5
11.Soft-recorded music is about 4000 tmes the minimmum intensity of sound detectable
by the human ear. Find the joudness in deabels.
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12J Eariy in the centry an earthguake measured 8.0 on the Richter scale. In the same
year, another earthquake Was recorded that measured six me SCoRger on the
Richter scale- What was the magnitude of the earthquake Of the sronger
