Hydrogen has a volume of 1.0l and the pressure is 5.4 atm if the initial temperature is 33 degrees c the final volume is 2.0 l and the final pressure is 4.3 atm what was the final temperature of the hydrogen?

487.33 K.

Explanation:

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant.

T is the temperature of the gas in K.

P₁V₁T₂ = P₂V₂T₁

P₁ = 5.4 atm, V₁ = 1.0 L, T₁ = 33°C + 273 = 306 K.

P₂ = 4.3 atm, V₂ = 2.0 L, T₂ =??? K.

∴ T₂ = P₂V₂T₁/P₁V₁ = (4.3 atm)(2.0 L)(306 K)/(5.4 atm)(1.0 L) = 487.33 K.

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

i think it's c. i'm not sure but i think so.