The chemical reaction shown below is carried out in a coffee cup calorimeter . A student mixes 10.0 mL of 0.100 M H 2 A(aq) and 20 mL of 0.100 MNaOH * (aq) , both initially at 25°C. The student records the highest temperature of 40.C for the reaction . H 2 A(aq)+2NaOH(aq) Na 2 A(aq)+2H 2 O(l) AH = ??? KJ/molx a. What indicates that this is an acid -base reaction ? Explain your answer . B. Determine the amount of energy involved in the reaction in the coffee cup calorimeter . The density of the resulting solution is 1.00g / m * L and has the same specific heat capacity as water , 4.2 J/ g °C c. Determine the enthalpy of the reaction , in kJ/mol r* n

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation:

personal, she chose to do 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

може ли да зареждате повече информация, моля