PLEASE HELP ASAP What is the density of aluminum chloride vapor (AICI3) at 498 K and 0.939 atm?

A. 01.24 g/L
B. 03.06 g/L
C. 5.17 g/L
D. 7.42 g/L

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

Calculate the molarity of each aqueous solution: a. 78.0 ml of 0.240 m naoh diluted to 0.250 l with water b. 38.5 ml of 1.2 m hno3 diluted to 0.130 l with water