as 12:21 PM If the flask has a volume of 0.250 L, what is the minimum mass of PH
ID: 1032155 • Letter: A
Question
as 12:21 PM If the flask has a volume of 0.250 L, what is the minimum mass of PH BCls that must be added to the flask to achieve equilibrium 4.32xI02 x0.250 0 01121-12xlo2 b. point 7. An initial mixture of nitrogen gas and hydrogen gas is reacted in a rigid 3.0-L container at a certain temperature by the reaction: 3H2 (g) + N2(g) 2 NHs(g) At equilibrium, 15.0 moles of H2, 24.0 moles of Na, and 12.0 moles of NH, were found to be present. What were the concentrations of nitrogen gas and hydrogen gas that were reacted initially? points 8. 2 NOCI (g) 2 NO (g) + Cl2(g) At 35°C, K-1.6 x 105 for the reaction: Calculate the concentrations of all species at equilibrium for each of the following original mixtures 2.0 moles of pure NOCl in a 2.0-L flask 12y)11%) [NOCI) 2021 0.0%), l.lb a. ke [Non CIJ- point 2.0 2. 2x 2.0x10°(2)(2.01:4x3 LCI): 0.04/2 0.02MExplanation / Answer
Ans 7.
3H2 + N2 ----> 2 NH3
at t=0 x y 0
at =t(eq) x-3p y-p 2p
Given that, 2p =12.
Therefore, p =6.
Hence,
initial moles of H2 = 15 + 3p = 33 moles.
initial moles of NH3 = 24 + p = 30 moles.
Hence, concentration of H2 = 33/3 = 11 M
concentration of N2 = 30/3 = 10 M.
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