When 0.35 g of organic compound is heated with HNO3 and AgNO3 in carius tube, it gives 0.70 g of silver Chloride, calculate %Cl in this compound? ( A. wt of Ag =108, A. wt of Cl = 35.5)
13.4.A O
17.3.B O
12.36.CO
49.4.DO

Coal i believe hope this

Answerspecies;

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.