Carbon disulfide has a vapor pressure of 363 torr at 25 °C and a normal boiling point of 46.3 °C.
Vapor pressure or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system. It is an indication of the thermodynamic tendency of a liquid to evaporate.
It is the pressure at which a liquid and its vapor are in equilibrium at a given temperature where the vapor is said to "push" against the atmosphere, so the higher the vapor pressure the faster the liquid evaporates.
The vapor pressure is different for different compounds like for Carbon disulfide the vapor pressure is 363 torr at 25 °C.
Thus, Carbon disulfide has a vapor pressure of 363 torr at 25 °C and a normal boiling point of 46.3 °C.
Learn more about Vapor Pressure, here:
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absolute temperature of the gas inside is quadrupled?
Answer:It quadruples
Explanation:
has stopped?
Answer:
Ammonia is limiting reactant
Amount of oxygen left = 0.035 mol
Explanation:
Given data:
Masa of ammonia = 2.00 g
Mass of oxygen = 4.00 g
Which is limiting reactant = ?
Excess reactant's amount left = ?
Solution:
Balance chemical equation:
4NH₃ + 3O₂ → 2N₂ + 6H₂O
Number of moles of ammonia:
Number of moles = mass/molar mass
Number of moles = 2.00 g/ 17 g/mol
Number of moles = 0.12 mol
Number of moles of oxygen:
Number of moles = mass/molar mass
Number of moles = 4.00 g/ 32 g/mol
Number of moles = 0.125 mol
Now we will compare the moles of ammonia and oxygen with water and nitrogen.
NH₃ : N₂
4 : 2
0.12 : 2/4×0.12 = 0.06
NH₃ : H₂O
4 : 6
0.12 : 6/4×0.12 = 0.18
O₂ : N₂
3 : 2
0.125 : 2/3×0.125 = 0.08
O₂ : H₂O
3 : 6
0.125 : 6/3×0.125 = 0.25
The number of moles of water and nitrogen formed by ammonia are less thus ammonia will be limiting reactant.
Amount of oxygen left:
NH₃ : O₂
4 : 3
0.12 : 3/4×0.12= 0.09
Amount of oxygen react = 0.09 mol
Amount of oxygen left = 0.125 - 0.09 = 0.035 mol
The limiting reactant in the reaction between Ammonia and Oxygen is Ammonia (NH3). All of the Oxygen is used up in the reaction, so no excess reactant remains.
This question involves a concept in chemistry known as limiting reactants and stoichiometry. The balanced chemical reaction between Ammonia (NH3) and Oxygen (O2) is: 4NH3 + 5O2 -> 4NO + 6H2O. This indicates that 4 moles of NH3 react with 5 moles of O2.
To find the limiting reactant, you first need to convert the grams of your reactants to moles. The molar mass of NH3 is approximately 17.0g/mol, and the molar mass of O2 is 32.0g/mol. Therefore, you have 2.00g/17.0g/mol = 0.118 moles of NH3 and 4.00g/32.0g/mol = 0.125 moles of O2.
Since 5 moles of O2 are needed for every 4 moles of NH3, and we have slightly more O2 than NH3, the limiting reactant is NH3. To find the amount of excess reactant, we determine how much O2 actually reacted by multiplying (0.118 moles NH3)*(5 moles O2/4 moles NH3) = 0.1475 moles O2. The original amount of O2 was 0.125 moles, so the amount left over is 0.125 - 0.1475, which is a negative number and thus not possible. This confirms that O2 is the excess reactant, although it entirely reacted. Hence, no excess reactant remains.
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Answer:
d) Hydrogen chloride
Explanation:
Hydrogen chloride (HCl) is not a mixture. It is a chemical compound composed of two elements, hydrogen (H) and chlorine (Cl), combined in a fixed ratio. In contrast, the other options (antibiotic, evaporated milk, brewed coffee) all involve mixtures:
Antibiotics are typically mixtures of various chemical compounds used for medicinal purposes.
Evaporated milk is a mixture of milk and water with the water removed.
Brewed coffee is a mixture of water and coffee grounds, often with other components like sugar or cream added.
Hydrogen chloride, on the other hand, is a pure compound with a defined chemical formula (HCl) and consistent composition.
move across the membrane to the outside of the cell.
stop moving across the membrane.
continue to move across the membrane in both directions.
move across the membrane to the inside of the cell.
will continue to move across the membrane in both directions.
i hope this helps you ( c )
have a wonderful day
~hailey lee~
True
False