Answer:
7.71 atm
Explanation:
Given the following data:
According to the ideal gas law, we know that the product between pressure and volume of a gas is equal to the product between moles, the ideal gas law constant and the absolute temperature:
Since the temperature and the ideal gas constant are constants, as well as the fixed container volume of 5 L, we may rearrange the equation as:
This means for two conditions, we'd obtain:
Given:
Solve for the final pressure:
Now, according to the Dalton's law of partial pressures, the partial pressure is equal to the total pressure multiplied by the mole fraction of a component:
Knowing that:
And:
The equation becomes:
Substituting the variables:
Answer:
1. 0.05moles of H₂O₂ is consumed in the reaction
2. the number of unreactive H₂O₂ is 0.20 moles
3. the percentage of H₂O₂ is 0.18%
4. no, not similar to 3% H₂O₂
5. percentage error = 0.94 = 94%
Explanation:
The answer is d you are welcome
<span> Bars are found in approximately two-thirds of all spiral galaxies.</span>
Answer:
The atomic radius gets smaller the farther right it appears on the
periodic table.
Explanation:
Number of protons is increasing across the period so electrostatic attraction between the positive nucleus and the valence electrons increases and electrons are drawn close to the positive nucleus. This increases nuclear charge and so atomic radii gets smaller.
Also, the atomic radii size also depend on Electron - electron repulsion and shielding of the outermost valence electrons by the inner-most energy levels for the positive nucleus and number of energy levels.
Across the period, the electron-electron repulsion does not increase but there is increasing nuclear charge. The valence electrons are added to same energy level so electron shielding of the positive nucleus by the inner electrons is the same across the period.
