<u><em>0.815 ATM=82.579875 KPA</em></u>
<u><em>0.815 ATM=619.39991 mmHg</em></u>
<u><em>0.815 ATM=619.4 TORR</em></u>
<u><em>Good luck!</em></u>
Answer:
127K
Explanation:
Recall that the density of a gas (ρ) is related to the molar mass of the gas (M), the ideal gas constant (R), and the temperature in Kelvin (T). This relationship is described by the equation below.
ρ=PMRT
We are asked to solve for the temperature at which neon gas, Ne(g), will have a density of ρ=1.45gL. Rearrange the equation above to solve for T and substitute the given values into the equation.
ρT=PMRT=PMRρ=(0.750atm)(20.180gmol)(0.08206L atmmol K)(1.45gL)=127.2K
Therefore, after rounding to three significant figures, we find that the temperature is approximately 127K.
Answer:
True
Explanation:
It is true that every element in the periodic table follows the Aufbau's principle.
The principle states that "the sublevels with lower energies are filled up before those with higher energies".
- Sublevels do not fill up in numerical order.
- This is true when writing the electronic configuration of all atoms on the periodic table.
Answer:
Put the water out in the sun and the water will evaporate.
Explanation:
Answer:
A family is a vertical column .
The elements in a family have similar chemical properties.
