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Some Basic Concepts of Chemistry
Calculate the molecular mass of glucose (C6H12O6) molecule.
Molecular mass of glucose (C6H12O6) =Mass of carbon +mass of hydrogen +mass of oxygen
Mass of carbon =12.011amu
Mass of oxygen=16.00 amu
Mass of hydrogen=1.008 amu
= 6(12.011 amu) +12 (1.008 amu) + 6(16.00 amu)
= 72.066 amu + 12.096 amu + 96.00 amu
= 180.162 amu
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What does SI units stand for?
What is the relation between temperature in Kelvin (K) and temperature on centigrade scale?
The popular unit of pressure is atmosphere, how is it related to pascal?
What are SI units of the following:
(i) Density
(ii) Molarity
(iii) Energy
(iv) Temperature ?
Out of 5.00 g and 5.0 g which one is more accurate and why?
What is iodised table salt?
Under what conditions air is considered as a heterogenous mixture?
What is gun powder?
Name two elements which are liquids.
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