A recipe calls for 1 tablespoon of salt (5g) in 1 L of water. what is the molarity of the solution

How many grams of n2h4 will be consumed by 23 g of n2o4

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

Can someone me with questions 15 to 17 plz.