Stoichiometry: What volume of hydrogen gas in liters was collected at STP?
The purity of a 0.248 gram sample containing Zn is determined by measuring the amount of hydrogen gas formed when the sample reacts with hydrochloric acid. The sample is found to be 91.7% Zn. What volume of hydrogen gas in liters was collected at STP?© SolutionLibrary Inc. solutionlibary.com 9836dcf9d7 https://solutionlibrary.com/chemistry/physical-chemistry/stoichiometry-what-volume-of-hydrogen-gas-in-liters-was-collected-at-stp-2dj
...ore x moles of Zn = 0.248 g
Once you solve this, you get the total number of moles of Zn. Now, you can multiply this number of moles by 91.7% to get the total number of moles Zn.
3) From this ...