I don\'t understand the conversion. I get the gal to ml. How does the mol works?
ID: 833930 • Letter: I
Question
I don't understand the conversion. I get the gal to ml.
How does the mol works? For example: How do know when to put 16 mol of CO2/2mol C8H18, and etc.
For this problem: How do I find the ion: Eample: SO4 2- <---
How many pounds of C02 arc produced from the complete combustion of 1.90gal of gasoline? Assume that gasoline has the formula C8H18 and has a density of 0.703 g/mL. What is the molarity of each ion in a solution prepared by dissolving 0.600g of Na2S04 1.196gof Na3P04, and 0.227g of Li2S04 in water and diluting to a volume of 100.00 mL?Explanation / Answer
Q2)
In the case of dissociation of Na2SO4
Na2SO4 -> 2Na + + SO4(2-)
Every mole of Na2SO4 will provide one mole of SO42- and 2 moles of Na+
In the question, we have given 0.6000 gms of Na2SO4 hence first divide it by molecular weight i.e. 142.06 and since we know that each mole of Na2SO4 will produce one mole of SO42-
Hence moles of Na2SO4 = moles of SO42- = 0.600/142.06 = 0.004223 moles
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