Guy 139 and chemistry 161 Gradebook FULL SCREEN PRINTER VERSION BACK NEXT MOLE F

Question

Guy 139 and chemistry 161 Gradebook FULL SCREEN PRINTER VERSION BACK NEXT MOLE FRACTION TO2/so3 solution of (CH3)2co in the solvent c4Hao has a mole fraction of acetone of o.0152. what mass (kg) of the solution must Molar Mass (g be taken if 0.0125 kg of needed? (CH3)2CO 58.05 kg C4Hao 72.12 Density (kg/L (CH3)2CO 0.7899 C4Hao 0.8892 Name/Formula: (CH3)2CO tetrahydrofuran The number of significant digits is set to 3; the tolerance is +/-5% Question Attempts: o of 1 used SAVE FOR LATER SUBMIT ANSWER copyright 2000-2014 by John wiley & Sons, inc. or related companies. Allrights reserved. ment/test/aglist, uni N1006E

Explanation / Answer

(ch3)2co mass = acetone mass = 58 gm /mol

c4h8o  mass = 72 gm/mol

molefraction of acetone = 0.0152 = no of moles of acetone / total no of moles

1 mole of the solvent contains 0.0152moles of acetone and 0.9848 moles of c4h8o

mass of1 mole of solvent = 0.0152*58+0.9848*72 = 71. 7872gm

1 mole of the solvent contains 0.0152moles of acetone

71. 7872 gm of solvent contain 0.8816 gms of acetone

? gm of solvent contain 12.5 gms of acetone

1017.854 gm of solvent contain 0.0125 kg of acetone

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.