How many moles ?? -1
1 mole of reacts with 36.5 gram of . The volume of container is . Find out the pressure in atm at inside the container when the reaction is completed.
The answer is 13.65.
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1 solution
Zn + 2HCl -> ZnCl2 + H2 There are 36.5/(1+35.453) = 1 mol of HCl, which means that there will be 0.5 mol of H2 after the reaction completes. Rewriting the ideal gas law PV = nRT, we have P = nRT/V, where V = 0.821 L, n = 0.5 mol, T = 273 K, and R = 0.082057. Plugging in these values, we get P = 13.65.