A 0.1401 g sample of pure carbonate was dissolved in 50.00 mL of 0.1140 M HCl and boiled to eliminate CO2. Back-titration of the excess HCl required 24.21 ml of 0.09802 M NaOH. Identify the carbonate, i. e. X in X(CO3)n.

mention the spill to the teacher clean the area and throw the broken pieces away

explanation:

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

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