Question

26/2020 Unit 7 Exit Ticket Unit 7 Exit Ticket Please complete the MULTIPLE CHOICE & SHORT ANSWER Exit Ticket. There is a time li for completing this. Once you start, you will have 30 MINUTES to complete! Your email address (tatyana.partee21@kippatlantascholars.org) will be recorded wher submit this form. Not you? Switch account * Required What is the mole fraction of CO2, when 14 g of CO2 is dissolved in 250 g of water? 0 .02 mols O 0.32 mols O 13.89 mols 0.98 mols

Answer 1

mass humber of moles = molar mass Given 14g coa and 250g ho ca moles ce molar mass = 12+2 (16) = 449/mol mass = 149 in= 149 = 0.318 moll thomoles: Inca = 0.318 mol и ако molas mass = 2(1) + 16 = 189/mol mass = 250g n = 250g - 18g/mol = 13.89 mol. Inho = 13.89 moi mole fraction (x) Here Noumber of moles of a Total woles in mixture xco a number of moles of co neoat nuo Xcon = 0.318 mol -50.022 0.318mo! +13.89 mol :: Mole fraction of co = 0.02