Answer:
a. 8.37 g,
b. 11.67 g
Explanation:
A) Given:
We need to find the mass of argon.
Firstly, we need to apply the ideal gas law in order to find the total number of moles of gases present in the flask:
From here:
Substituting the variables:
Find the number of moles of hydrogen dividing its mass by the molar mass:
Now find the moles of argon:
Using the molar mass of argon, convert this number into mass:
B) Given:
Firstly, the total pressure is equal to the sum of the vapor pressure of water and the partial pressure of oxygen. Knowing this, solve for the pressure of oxygen:
Use the ideal gas law:
Rearrange the equation, so that we have moles in terms of the mass and the molar mass of oxygen:
Convert the pressure of oxygen into atm knowing that 1 atm = 760 mm Hg. Then:
Now rearrange the ideal gas law equation for mass:
Solve using the variables identified:
The higher the order, the lower the entropy. Solids are most orderly and gases are least orderly, with liquids and aqueous in between. That said, NaCl(g) would have the highest entropy.
Answer: increasing frequency or energy and decreasing wavelength.
Explanation:
Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They can travel in vacuum as well and travel with the speed of light i.e
The electromagnetic spectra consist of radio waves, microwaves, infrared ,Visible , ultraviolet, X rays and gamma rays arranged in order of increasing frequency or increasing energy and decreasing wavelengths.