Q1: T) Sample of aluminum was reacted with HCI solution to produce H: gas according to the data find the percent by mass of aluminum (A1%) Mass of sample Volume of gas collect Pressure of H₂ Temperature of H₂ Gas constant (R) Molar mass of Al 0.05 g 45 ml 0.911 atm 28 C 0.0821 (atm. L/mol. K) 26.98 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.
![Q1:
Q2:-
1) Sample of aluminum was reacted with HCI solution to produce He gas according to the data
find the percent by mass of aluminum (A1%)
Mass of sample
Volume of gas collect
Pressure of H₂
Temperature of H₂
Gas constant (R)
Molar mass of Al
1- Calculate Ksp
0.05 g
45 ml
0.911 atm
28 Co
0.0821 (atm. L/mol. K)
26.98 g/mol
16 ml Mg (OH)2 saturated solution with suitable indicator react with 10 ml HCI (0.5 M).
2- Calculate the Ksp after added 10 ml MgCl₂ solution to Mg (OH)2 saturated solution if the amount of HCI
(0.5 M) used to reach the end point is 5 ml
Q3: (
f) 1.61 g of unknown volatile liquid has been vaporization in conical flask with volume 200
ml at 107 C° and 1.64 atm, Calculate the molar mass of liquid (gas constant=0.0821 L.atm/K.mol).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F46ef3182-b77b-4d5e-aa39-bd37ce4fcd02%2Fc06c00f1-a485-4f91-be1f-2ce2a86769cb%2Fv1kp8rs_processed.jpeg&w=3840&q=75)
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