Gass question?

Question

a ridgid 8.2L flask contains a mixture of 2.5 moles of h2 , .5 mol of O2 and sufficent Ar so that the partial pressure of Ar in the flask is 2.00 atm. the temp is 127 C.

a. calculate the total pressure in the flask
b. calculate mole fraction of H2 in the flask
c. calculate density ( in g L-1) of the mixture in the flask

the mixture in the gas is ignited by a spark, and the reaction represented below occurs untill ne of the reactants is completly comsumed.

2H2 (g) +O2 (g) ----> 2H2O(g)

d. give the mole fraction of all species present in the flask at the end of the reaction.

i get what the total pressure is but i dont know how to do the mole ratio stuff. i have an idea but it is most likely wrong

Answer 1

Sneaky way to get your homework done. ;)

Answer 2

I disagree. replace continually occurs notwithstanding replace ought to make experience. replace in basic terms because you want to allow deviant habit isn't replace it finally ends up interior the destruction of the society that facilitates it. look on the Roman Empire. look at Hitler. that is replace that the international can actual do with out. There must be absolute criteria that never replace for society to stay in tact. A pound ought to weigh a pound each day. A gallon of gasoline or gallon of milk must be 128 oz. those are actual criteria. moral criteria aren't any different. The ought to stay a similar otherwise ciaos is the top result and destruction of society is the top result.

Answer 3

PV=nRT
You have to figure out the moles of gas molecules and be sure all your units are correct. you can find values for R, the universal gas constant in different units then use the right units for P, V, and T

good luck