Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?

0 Answers   Wipro,

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Balance the following redox equations by ion electron method. In basic medium (i) CN- + MnO4- CNO- + MnO2 In Acidic medium (ii) ClO3- + Cl- Cl2 + ClO2

1 Answers   Chemical, Wipro,

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why no bond in chemistry is 100% ionic?

13 Answers   PSO, Reliance,

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I want to ask the inventions of the maxwell boltzmann theory of gases?

0 Answers  

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2day science says that clouds r formed due to sea(more than 90% sea water in cloud). but when rain starts,,,,the rainy water is sweet while sea (salty)water is salty.....how sea water is converted into sweet water?

1 Answers  

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In Bulkdensity What is the difference between USP-I and USP- II

1 Answers   Reddy Labs,

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why silica absorb in mix bed resins in D M plant.

8 Answers   NTPC,

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why we are carrying standardization of karl fisher auto titrator with water and disodium tartarate.

1 Answers  

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what is induction on electrical insulators

0 Answers  

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What is the requirement to give RFlow when using RID detector?

0 Answers  

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what are the different by which a new molecule can be characterised ?

2 Answers   Cipla, Reddy Labs,

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How do you measure order of reaction?

2 Answers  

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