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Q. Atomic mass of an element?
The number at the bottom of every square in the periodic table is the atomic mass of that element in amu. A scan of the periodic table will without delay tell you that the atomic masses of many elements are not whole numbers. The reason for this is that several elements occur in nature as a mixture of isotopes-isotopes with different masses. The atomic mass of an element specified in the table is a weighted average of the atomic masses of the naturally occurring isotopes of the element. This weighted average takes in to account the mass and abundance of each of the isotopes. The following instance Problem shows you how to calculate the atomic mass of an element.
In order to determine the standard electrode potential of an electrode, the electrode in standard conditions is connected to standard hydrogen electrode (SHE) to constitute a cell.
please help me to do assignment about noble gas.
how to check the quality of sesame oil such as fat, nutrients, etc.,?
Whereas a pure molecular species has a definite stoichiometry, this is not often true for solids. Defects in crystals will include vacancies (atoms missing from their expected site
#question.what is chemical structures and names of first 20 mono carboxylic acid? .
Stearic effect - relative reactivity of aldehydes and keto The size of the alkyl group is much more than that of hydrogen. In aldehydes, there is one alkyl set although in keto
What is difference between aluminium and beryllium?
Q. What do you know about Radioactive Dating? Ans. Half-life measurements of radioactive elements in rocks and fossils can be used to determine the age of the specimen. On
Explain objectives of annealing? Discuss the various annealing processes? Is spheroidising different from annealing? Illustrate. A slow cooling rate from eutectoid tempe
Ask A mixture of water and graphite is heated to 890 K in a 10 L container. When the system comes to equilibrium it contains 0.875 mol each of CO and H2 and 0.289 mol of H2O and s
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