Calculate the empirical or molecular formula mass and the molar mass of each of the following minerals:(a) limestone, CaCO3(b) halite, NaCl(c) beryl, Be3Al2Si6O18(d) malachite, Cu2(OH)2CO3(e) turquoise, CuAl6(PO4)4(OH)8(H2O)4

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)