A student needs to dilute a 0.40 M Pb(NO3)2 solution to make 117.0 mL of 0.12 M Pb(NO3)2 . Set up the calculation by placing the values with the correct units into the equation. Then, calculate the volume, in milliliters, of the 0.40 M Pb(NO3)2 solution that is needed.

Order of filling levels and sublevels of electrons: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²3f¹⁴5d¹⁰6p⁶for an element with 5 electrons in the 3d energy level: full configuration: 1s²2s²2p⁶3s²3p³.

Cis the answer to your question

Because calorimetry is used to measure the heat of a reaction, it is a crucial part of thermodynamics. in order to measure the heat of a reaction, the reaction must be isolated so that no heat is lost to the environment. this is achieved by use of a calorimeter, which insulates the reaction to better contain heat.

(b) the rate constants of the forward and  reverse reactions are equalgood luck