The addition of 3.15 g of ba(oh)2.8h2o to a solution of 1.52 g of nh4scn in 100 g of water in a calorimeter caused the temperature to fall by 3.1c. assuming the specific heat of the solution and products is 4.20j/gc, calucluate the aproximate amount of the heat absorbed by the reaction, which can be represented by the following euation:
ba(oh)2.8h2o + 2nh4scn ? ba(scn)2 + 2nh3 + 10h2o

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction

How many grams are in one mole of lead?

What are the coefficients to balance the following equation? ba+br=babr2