GASES_MAH_(NXPowerLite) Opp

GASES_MAH(NXPowerLi - 100s of free ppts from wwwpoint.com library 1 Compiled by MAH Avogadros Hypothesis At a constant temperature and pressure a

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1 Compiled by MAH 100’s of free ppt’s from www.pptpoint.com library
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2 Avogadro’s Hypothesis At a constant temperature and pressure , a given volume of gas always has the same number of particles. The coefficients of a balanced reaction is the same ratio as the volumes of reactants and products
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3 2CO (g) + O 2 (g) 2CO 2 (g) For the above example, it is understood that half the volume of oxygen is needed to react with a given volume of carbon monoxide. This can be used to carry out calculations about volume of gaseous product and the volume of any excess reagents.
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4 Example • 10cm 3 of ethyne (C 2 H 2 ) is reacted with 50cm 3 of hydrogen to produce ethane (C 2 H 6 ), calculate the total volume and composition of the 1 st get balanced equation: C 2 H 2 (g) + 2H 2 (g) C 2 H 6 (g) 2 nd look at the volume ratios: 1 mol ethyne to 2 mol of hydrogen, therefore 1 vol to 2 vol 3 rd analyse: If all 10cm 3 of ethyne is used, it needs only 20cm 3 of hydrogen, therefore hydrogen is in excess by 50cm 3 -20cm 3 = 30 cm 3 . In the end you’ll have 10 cm 3 Ethane and the leftover 30 cm 3 hydrogen
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5 Molar volume The temperature and pressure are specified and used to calculate the volume of one mole of gas. Standard temperature and pressure (STP)
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This note was uploaded on 11/17/2011 for the course PHYS 121 taught by Professor Burgeson during the Fall '11 term at BYU.

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GASES_MAH(NXPowerLi - 100s of free ppts from wwwpoint.com library 1 Compiled by MAH Avogadros Hypothesis At a constant temperature and pressure a

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