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E. How many particles are present a mole of a substance ?F. What is the SI unit of amount osubstance ?G. What is meant by molar volumegas ?H. State and explain the law of conserveof mass.I. State the law of multiple proportio |
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Answer» E. F. MOLE is the SO unit of amount of substance. G. One mole of any gas occupies a volume of 22.4 dm3 at standard temperature (0 DEGREE Celsius) and pressure (1 atm) (STP). the volume of 22.4 dm3 at STP is known as molar volume of a gas. H. mass can neither be created nor destroyed. I. when two elements A and B form more than one COMPOUNDS, the masses of element B that combine with a GIVEN mass of A are always in the ratio of small whole numbers. |
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