Given the following reaction, how much 0.115 M KI solution will completely react with the Pb(NO3)2 in 0.118 L of 0.225 M Pb(NO3)2? 2KI(aq) + Pb(NO3)2(aq) → PbI2(s) + 2KNO3(aq)

Idon't understand what to put on the left lines i'm confused can anyone ?

Aluminum–lithium (al-li) alloys have been developed by the aircraft industry to reduce the weight and improve the performance of its aircraft. a commercial aircraft skin material having a density of 2.47 g/cm3 is desired. compute the concentration of li (in wt%) that is required.

What is the density of the black hole