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Unformatted text preview: -Then the rest can be derived from it-If n, T stay constant it will cancel out P 1 V 1 = P 2 V 2 (Boyles Law)-(T 1 = V 2 /T 2 Charles Law-P 1 T = cte V 1 /n 1 = V 2 n 2 Avogadros Law-Combined Gas Law E.G. Set problem as Initial Final P 1 = 1 Atm P2= 0.45Atm V 1 = 0.5L V2=? T 1 = 22C + 273 T2=-21C + 273 N 1 = N2= *Usually this is constant T2/P2 P1V1/T1 = P2V2/T2 (T2/P2) V2 = v1 (P1.P2) (T2/T1) = 0.5L (1atm/0.45atm) ( 252K/295K) Ideal Gas Equation: P V = n R T Atm L mol .08206 ( [L(Atm)]/mol(k)]) K Lets link molar Mass, density to PV = nRT if d = m/v then = m/d d P (m/d ) = n R T x d d = mP/nRT D=MP/RT M is molar mass, g/mol ? molar mass to PV = n R T (g/mol)nM = m/n x n PV m/M RT n = m/M M = mRT/PV Stoichiometry involving gas E.G. Airbag Rx Mass(g)...
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