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Q. Determine Molecular Mass of Atoms Ans: 6.02 x 10 23 is a really big number. It would be hard to count that many of any object. That's one of the reasons we count atoms b
The freezing point of ethylene glycol is -3.2 degree-Celcius. How many grams of ethylene glycol is required in 150 L of water to achieve such temperature?
Drying of Organic Substances- purification of organic compounds Several solids are dried first by pressing them gently in between folds of filter papers. Compounds that neither
How many grams of NaCl will be produced when 2235 g of HCl are neutralized by an excess of NaOH according to the equation below? HCl + NaOH ---> H2O + NaCl
Physical Properties - Alkenes (i) Alkenes are odourless and colourless. (ii) Alkenes are soluble in organic solvents and insoluble in water. (iii) Physical state of Alken
What are similarities and differences of primitive cells and unit cells? Ans: Unit cell is the basic building block of a crystal, repeated infinitely in three d
account for the effects of solvents on the wavelength of absorption of the acetone in terms of the hydrogen bonding properties of the solvent used
why pcl3 and s2cl2 are less polar then sicl4
what is uniform electrical charge
The equation Δ x Δp ≥ h/ 4Π shows: (1) de-Broglie relation (2) Heisenberg's uncertainty principle (3) Aufbau principle (4) Hund's rule ans: Heisenberg'
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