Answer: 59.24 atm
Explanation:
Given that:
Original Volume of gas V1 = 2.7L
Temperature T1 = 42.7°C
Convert Celsius to Kelvin
(42.7°C + 273 = 315.7K)
Pressure P1 = 684.9 torr
Final Volume V2 = 0.14 L
Final temperature T2 = 803.1°C
Convert Celsius to Kelvin
(803.1°C + 273 = 1076.1K)
Final pressure = ?
Then, apply the combined gas equation
(P1V1)/T1 = (P2V2)/T2
(684.9 torr x 2.7L)/315.7K = (P2 x 0.14L)/1076.1K
1849.23/315.7 = 0.14P2/1076.1
Then, cross multiply
1849.23 x 1076.1 = 315.7 x 0.14P2
1989956.403 = 44.198P2
Divide both sides by 44.198
1989956.403/44.198 = 44.198P2/44.198
45023.67 torr = P2
Now, convert the pressure in torr to atmosphere
If 760 torr = 1 atm
45023.67 torr = Z atm
Then, cross multiply
760 torr x Z = 45023.67 torr x 1 atm
Z = 45023.67 torr / 760 torr
Z = 59.24 atm
Thus, the new pressure of the gas will be 59.24 atm
Answer:
Helium
In the sun, hydrogen is converted to __<u>Helium</u>__ through nuclear fusion.
I think the correct answer from the choices listed above is option C.
Calcium carbonate = CaCO3
sulfur dioxide = SO2
oxygen = O2
calcium sulfate = CaSO4
Carbon dioxide = CO2
The correct skeleton equation for the reaction would be CaCO3(s)+SO2(g)+O2(g) --> CaSO4(s)+ CO2(g).
Answer:
Dissolve the impure solid in a minimal amount of boiling solvent, cool the solution to form crystals, vacuum filter the solution to collect the pure crystals.
Explanation:
Recrystallization is a process when a solid with impurities is purified. To do this a solvent of the compound we want must be used. We need to use only the quantity necessary to dissolve the compound of interest, otherwise, the solvent will dissolve the impurities or it will interfere in the crystallization.
For most of the solids, the solubility increases with the increase of the temperature, so to speed up the process, heat must be added at the system, or the solvent must be boiling. Then, the solution will be cooled to form the crystals of the compound purified, and then it must be filtered in a vacuum because the crystals can slow down the filtration.
Water takes longer to cool down and heat up because it detains temperature longer. So in the summer, coastal areas are cooler and the in the winter, coastal ares are warmer.
