A. formic acid is a weak acid found in insect stings. it partially dissoc hcho2 cho2 + h '. the equilibrium constant describing the dissociation is k-points) ates in water according to the reaction (6 i) if a solution of formic acid contains 0.2 m hcho2, 0.006 m cho2, and 0.006 mh ', what is the k, of the acid ?

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

Which metal exist in liquid state and can be cut with knife ?

15) a substance used in manufacturing gasoline consists of finely divided platinum supported on an inert solid. suppose that the platinum is formed by the high temperature reaction between platinum (iv) oxide and hydrogen gas. the other product is water. a) write and balance the equation b) how many grams of hydrogen are needed to produce 1.0 g of platinum metal? c) how many moles of water are produced at the same time? how many grams? ( show work, .)