In setting up this experiment, a student noticed that a bubble of air leaked into the syringe containing the hcl (aq) solution, but it was not taken into consideration for the volume added to the flask. what effect would this have on the measured volume of hydrogen gas? would the calculated molar volume of hydrogen be:

Experimentally, the molar volume of hydrogen gas is measured by reacting a piece of metal like magnesium with excess hydrochloric acid. The reaction which takes place is-

Mg (s) + 2HCl(aq)→ MgCl2(aq) + H2(g)

Since HCl is taken in excess, the limiting reagent is Mg. Thus, the molar volume of H2 formed would depend only on the number of moles of Mg.

Therefore, if a bubble leaked into a syringe containing HCl, that would not affect the measured volume or the molar volume of hydrogen gas.

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml