A sample of gas is kept at 296k in a 200 L .the pressure gauge on the container reads 0.615 atm. Assuming that the gas is ideal , how many miles of gas are in the container?

Sorry i dont understand the question can you rephase it?

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o

It would be true sodium reacts with water in a violent way