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Gold has a molar mass of 197g/mol. How many atoms are in the sample?Please give me procedure also. Ans) molecular wieght of gold is 197 g 1mole/g of molecule is occupies the
what is the balanced equation of the burning of an unknown hydrocarbon, C4H9 in air
Piezoelectric effect is the production of electricity by?? Piezoelectric effect is the forming of electricity by pressure.
What is doping
I have the following reactions (1)NaOH+CO2+M=NaHCO3+M, K1 (2)NaHCO3+H=Na+H2CO3, K2 (3)2NaHCO3+M=(NaHCO3)2+M, K3 ki''s are the rate constants. Suppose NaHCO3 is a dominating constit
How many ion H2- does have The H2- ion having three electrons. This can be conceived as the combination of a hydrogen atom with a hydride ion (H-). By the aufbau principle, two
Q. Show Chemical properties of Thorium metal? You know that actinium and all the actinides are radioactive. Of these only uranium and thorium are extracted from ores, all other
Q. Explain important properties of energy? Properties of Energy There are two important laws that explain the important properties of energy: Conservation of Energy (
a sophisticated ultra/visible/near-IR instrument has a wavelenght range of 185 TO 3000 nm.What are its Wave number and frequency ranges ?
What is T in the indicator Eriochrome Black-T used for the determination of hardness of water?
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