Explain what is the half-life of ba-137m explain what
The activity of a sample of Ba-137m has reduced by 75% from its initial activity after 5.10 minutes. Explain what is the half-life of Ba-137m? Explain what fraction of activity remains after 6.25 minutes? (A=Aoe (-kt); k = .693/t1/2)
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neutralization of a 3000ml sample of a sulfuric acid solution needed 4033ml of 03870 m sodium hydroxide explain what is
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if a reaction is second order in hydroxide ion by explain what factor the initial rate would change if the
the activity of a sample of ba-137m has reduced by 75 from its initial activity after 510 minutes explain what is the
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in a thin layer chromatography experiment a plate of length 897 cm was utilized and a horizontal line was made at 123
potassium-40 has a natural abundance of 00118 explain how many atoms of potassium-40 are present in a 135 g sample of
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