What volume of H2 gas, measured at 57˚C and 850 torr, can be obtained by reacting 10.00 g zinc metal with 300. mL of 0.350 M HCl? Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g) To do this, answer the following questions: i. the limiting reactant is___________ ii. the maximum number of moles of H2 (g) that can be produced from this reaction is____________ (answer to 4 decimal places) iii. now that you have the moles of H2, which equation will you use to calculate the volume of H2 (g) that can be produced from this reaction? iv. the volume of H2 (g) that can be produced from this reaction is _______________ (answer to 3 decimal places) () Provided molar mass, use as needed Zn = 65.39 g/mol HCl= 36.46 g/mol H2 = 2.016 g/mol ZnCl2 = 136.29 g/mol
Ideal and Real Gases
Ideal gases obey conditions of the general gas laws under all states of pressure and temperature. Ideal gases are also named perfect gases. The attributes of ideal gases are as follows,
Gas Laws
Gas laws describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. The very first observations about the physical properties of gases was made by Robert Boyle in 1662. Later discoveries were made by Charles, Gay-Lussac, Avogadro, and others. Eventually, these observations were combined to produce the ideal gas law.
Gaseous State
It is well known that matter exists in different forms in our surroundings. There are five known states of matter, such as solids, gases, liquids, plasma and Bose-Einstein condensate. The last two are known newly in the recent days. Thus, the detailed forms of matter studied are solids, gases and liquids. The best example of a substance that is present in different states is water. It is solid ice, gaseous vapor or steam and liquid water depending on the temperature and pressure conditions. This is due to the difference in the intermolecular forces and distances. The occurrence of three different phases is due to the difference in the two major forces, the force which tends to tightly hold molecules i.e., forces of attraction and the disruptive forces obtained from the thermal energy of molecules.
What volume of H2 gas, measured at 57˚C and 850 torr, can be obtained by reacting 10.00 g zinc metal with 300. mL of 0.350 M HCl?
Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g)
To do this, answer the following questions:
i. the limiting reactant is___________
ii. the maximum number of moles of H2 (g) that can be produced from this reaction is____________ (answer to 4 decimal places)
iii. now that you have the moles of H2, which equation will you use to calculate the volume of H2 (g) that can be produced from this reaction?
iv. the volume of H2 (g) that can be produced from this reaction is _______________ (answer to 3 decimal places) ()
Provided molar mass, use as needed
Zn = 65.39 g/mol
HCl= 36.46 g/mol
H2 = 2.016 g/mol
ZnCl2 = 136.29 g/mol
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