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Which element at 101.3kPa and 298 K?

At 101.3 kPa and 298 K, the element present is likely to be oxygen (O2) due to its high natural abundance in the atmosphere and its physical properties at that temperature and pressure.


What is standard state of oxygen in enthalpy of formation?

The usual state of oxygen and hydrogen: they are gases at room temperature.


Which compound is formed from its elements by an exothermic reaction at 298 K and 101.3 kPa?

Carbon dioxide (CO2) is formed from its elements (carbon and oxygen) by an exothermic reaction at 298 K and 101.3 kPa.


What is the solubility of oxygen in water exposed to air at 1 ATM and 298 K?

This solubility is 8 mg/L.


What is 298 Fahrenheit converted into kelvins?

298 degrees Fahrenheit = 420.93 K.


What is nitrogen's standard state?

The state of nitrogen is gas at 298 K. Nitrogen's symbol is N and it;s atomic number is 7.


What is sulfurs state of matter?

At normal room temperature of 298 K, sulphur is a solid. 388.36 K is enough to melt it, while 717.8 K is enough to boil it. The vapour-liquid critical point is at 1314 K and 20.7 MPa.


What is the standard state of sulfur?

The state of sulfur is solid at 298 K. Sulfur's symbol is S and its atomic number is 16.


What is the numerical value of Kw at 298 k?

The value of Kw (ion product of water) at 298 K is approximately 1.00 x 10^-14.


What is the pressure in atmospheres exerted by a 0.500 mol sample of oxygen gas in a 10.0 L container at 298 K?

To find the pressure exerted by the gas, we can use the ideal gas law, ( PV = nRT ). Here, ( n = 0.500 ) mol, ( R = 0.0821 , \text{L} \cdot \text{atm} / (\text{mol} \cdot \text{K}) ), and ( T = 298 , \text{K} ). Plugging in the values, we get ( P = \frac{nRT}{V} = \frac{0.500 \times 0.0821 \times 298}{10.0} \approx 1.22 ) atm.


What is the velocity of hydrogen at 298 K?

The average velocity of hydrogen molecules at 298 K can be calculated using the root mean square velocity formula, v = √(3kT/m), where k is the Boltzmann constant, T is the temperature in Kelvin, and m is the mass of a hydrogen molecule. The average velocity of hydrogen at 298 K would be around 1926 m/s.


The electron configuration Ar4s1 is the ground state electron configuration of?

The electron configuration of 1s22s22p3s1 is not the ground state electron configuration of any element. This configuration contains 8 electrons, which in the ground state would be oxygen. The ground state configuration of oxygen is 1s22s22p4.