Consider the following metathesis reaction. AgN0_}3(aq) + Rbl(aq) right arrow Ag

Question

Consider the following metathesis reaction. AgN0_}3(aq) + Rbl(aq) right arrow Agl(s) + RbN03(aq) Using the given reaction, explain how a balanced chemical equation relates to the law of conservation of mass. In the balanced equation, the number of atoms of Ag, N, O, Rb, and I Q on both sides of the reaction. In other words, of the atoms have been created or destroyed. This also implies the mass of the reactants to the mass of the products, and the law of conservation of mass -Select-- Q obeyed. A powdered mixture of the two reactants is mixed in water. Agl precipitates, is separated, and is then weighed. When RbN0_3 is separated from solution (by evaporation) and weighed, its mass is 164.0 grams. If the mass of the powdered mixture was 412.5 grams, predict the mass of the precipitate using the law of conservation of mass. If the powdered mixture from part contained 306.5 grams AgNO_3 what was the percent by mass of AgNO_3 in the powered mixture %

Explanation / Answer

a) are equal ,None of the atoms, is equal, is

b) mass of powdered mixture= 412.5 gm , mass of AgNo3+ mass of RbI= 412.5

Mass of reactants = mass of products= 412.5 gms

c) Total mass = 412.5 gms , mass of AgNO3= 306.5 gms

Mass percent = 100* Mass of AgNO3/ Mass of powdered mixture= 100*306.5/412.5=74.3

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