at tv ILLUSTRATION 7.20 Calculate the value in the following decays: (a) 1909F + e + 7 (b) 25A1 → 25Mg + et. The atomic masses needed are as follows: T 10 IF I 25A1 I 2500 19.003576 u 18.998403 u 24.990432 4 24985839..

Calculate the Q-value in the following decays: (a) ^19 O rarr ^19 F + e + vec v . (b) ^25 A1 rarr ^25 Mg + e^+ + v . The atomic masses needed are as follows : ^19 O 19.003576 u ^19 F 18.998403 u ^25 A1 24.990432 u ^25 Mg 24.985839 u

Calculate the Q-value in the following decays: (a) ^19 O rarr ^19 F + e + vec v . (b) ^25 A1 rarr ^25 Mg + e^+ + v . The atomic masses needed are as follows : ^19 O 19.003576 u ^19 F 18.998403 u ^25 A1 24.990432 u ^25 Mg 24.985839 u

Calculate the Q-value in the following decays: (a) ^19 O rarr ^19 F + e + vec v . (b) ^25 A1 rarr ^25 Mg + e^+ + v . The atomic masses needed are as follows : ^19 O 19.003576 u ^19 F 18.998403 u ^25 A1 24.990432 u ^25 Mg 24.985839 u

If the mean of the following data is 20.6. Find the value of p . x : 10 15 p 25 35 f : 3 10 25 7 5

If the mean of the following data is 20.6. Find the value of p . x : 10 15 p 25 35 f : 3 10 25 7 5

The arithmetic mean of the following data is 14. Find the value of k x_i : 5 10 15 20 25 f_i : 7 k 8 4 5

The arithmetic mean of the following data is 14. Find the value of k x_i : 5 10 15 20 25 f_i : 7 k 8 4 5

If the mean of the following data is 18.75. Find the value of p . x_i : 10 15 p 25 30 f_i : 5 10 7 8 2

If the mean of the following data is 18.75. Find the value of p . x_i : 10 15 p 25 30 f_i : 5 10 7 8 2

Calculate the molecular masses of the following: (i) C_(12)H_(22)O_(11) , (ii) Al_(2)(SO_(4))_(3) Given atomic masses : C = 12.0 u, H= 1.0 u, O = 16.0 u, Al = 27.0 u, S = 32.0 u