What is the concentration of chlorine in ppm, in a 2.0L sample of pool water that contains 5.2mg of chlorine. How do I do this problem

2.6 ppm

Explanation: ppm is parts per million, also 1:1000 000.

It means 1 mg in 1000 000 mg is same as 1 mg in 1000 g

Assume 2.0 litres weighs 2.0 kg = 2000 g

In one litre there is 2.6 mg Cl. You get a proportion 2.6 mg :1000 g

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation: