Archive for September 13th, 2008

molybdenum_99(mo-90)has a half life of 66 hours?

Saturday, September 13th, 2008
buggy asked:


molybdenum_99(mo-90)has a half life of 66 hours. after 132 hours,how much of an initial sample of 10 ci of mo-99 would remain?.

a 10 ci
b 5ci
c
2.5ci
d
1.25ci

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What is the assigned oxidation state of molybdenum in indium molybdate?

Saturday, September 13th, 2008
ShanAnn B asked:


In (MoO )
2 4 3
The numbers are spaced half way below each element. I just can’t make the computer do that with this set-up

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Posted in Chemistry | 1 Comment »