30.0 L of fluorine gas and 50.0 L of hydrogen gas, both at STP, are reacted to produce hydrogen fluoride gas. Which is the limiting reactant? Which is the excess? How many liters of hydrogen fluoride are formed in this reaction if the final pressure of HF is 1.25 atm and the final temperature is 25ºC?

Sorry i dont understand the question can you rephase it?

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

H tricky one let me think and get back to u

Muscle fiber i think that i right