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Analysis of a 45.0g sample of water revealed a silver concentration of 47.1ppm. Assuming the solution has a density of 1.00g/mL. Calculate the molar concentration of the silver in the solution. (I am so lost with this question. Does it make sense to anyone?) help! :(
 one year ago
 one year ago
Analysis of a 45.0g sample of water revealed a silver concentration of 47.1ppm. Assuming the solution has a density of 1.00g/mL. Calculate the molar concentration of the silver in the solution. (I am so lost with this question. Does it make sense to anyone?) help! :(
 one year ago
 one year ago

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aaronqBest ResponseYou've already chosen the best response.1
convert 47.1 ppm to grams then to moles... 1g of water = 1 mL then Molarity=moles/L of solution
 one year ago

kittykitty04Best ResponseYou've already chosen the best response.0
okay... how do i go from ppm to g? :S
 one year ago

aaronqBest ResponseYou've already chosen the best response.1
ppm=(g of silver/g of water) x 1,000,000
 one year ago

aaronqBest ResponseYou've already chosen the best response.1
oh wait sort i meant *g of solution at the bottom
 one year ago

kittykitty04Best ResponseYou've already chosen the best response.0
okay, so you're saying ppm = (g of water/ g of solution)?
 one year ago

kittykitty04Best ResponseYou've already chosen the best response.0
sorry, this question confuses me because it says "silver concentration of 47.1 ppm" in the beginning of the question and then it says "calculate the concentration of the lead in the solution" at the end. it totally messes with me! ah! : So it says "assuming the solution has a density of 1.00g/mL" should I do ( 45.0g water/ 1.00 g/ml) = 45 mL? i'm so lost.
 one year ago

kittykitty04Best ResponseYou've already chosen the best response.0
wait. ugh, this is so frustrating. all that i just said that made no sense.
 one year ago

aaronqBest ResponseYou've already chosen the best response.1
haha oh i didn't even notice that.. it's probably a typo..
 one year ago

aaronqBest ResponseYou've already chosen the best response.1
47.1= (g of silver/45 mL )x1,000,000
 one year ago

aaronqBest ResponseYou've already chosen the best response.1
45 mL can from mass of water and density 1 g/ml= 45 g/V V= 45 mL
 one year ago

kittykitty04Best ResponseYou've already chosen the best response.0
alright. i think i got it, thanks aaron!
 one year ago
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