What is the gram molecular mass of a gas that has a density of 1.78 grams per liter at STP? Round your answer to the nearest tenth of a gram.

They make up examples of physical properties 

H+ + cn– + li+ + oh– mc001-4.jpg li+ + cn– + h2o

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m

I'm pretty sure the answer is alcohol