Macmillan Learning Imagine two solutions with the same concentration and the same boiling point, but one has ethanol as the solvent and the other has carbon tetrachloride as the solvent. Determine that molal concentration, m (or b), and boiling point, T. m = x10 TOOLS m Solvent Tb = ethanol carbon tetrachloride Normal boiling point (*C) 78.4 76.8 Kb (C/m) 1.22 5.03 C

A certain substance X melts at a temperature of -4.2 °C. But if a 600. g sample of X is prepared with 25. g of urea ((NH-),Co) dissolved in it, the sample is found to have a melting point of - 5.5 °C instead. Calculate the molal freezing point depression constant K, of X. Round your answer to 2 significant digits. -1

P. The normal boiling point of a certain liquid X is 142.70 °C, but when 0.13 kg of barium hydroxide (Ba(OH),) are dissolved in 750. g of X the solution boils at 144.4°C instead. Use this information to calculate the molal boiling point elevation constant K, of X. Round your answer to 2 significant digits. °C-kg OLX = 'x Continue Submit Assignment O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility EPIC MacBook Pro F3 F8 F10 #3 3. $ 8 R. T. A H と alt pubuwo command option

-1 A certain substance X has a normal boiling point of 117.9 °℃ and a molal boiling point elevation constant K₂=2.27 °C.kg-mol O Calculate the boiling point of I a solution made of 49.6 g of urea ((NH₂)₂CO) dissolved in 750. g of X. Round your answer to 4 significant digits. °C x10

Please don't provide handwritten solution ....

Assuming ideal behavior, the change in the freezing point (∆Tf) for a 0.171 m solution of NaCl in an unknown polar solvent is found to be -6.81℃. Again, assuming ideal behavior, the change in the freezing point for a 0.684 m solution of NaCl in the same polar solvent will be ________.     a.)-27.24℃ b.)-6.81℃ c.)+6.81℃ d.)-54.48℃ e.)-13.62 ℃

A certain liquid X has a normal boiling point of 144.40 °C and a boiling point elevation constant K₂=2.09 °C-kg-mol. Calculate the boiling point of a solution made of 17.g of sodium chloride (NaCl) dissolved in 350. g of X. Round your answer to 4 significant digits. °C 20 X

Water Ethanol Submit Answer viewing Your Aca... Formula Show Hint The freezing point of water is 0.00 °C at 1 atmosphere. A student dissolves 14.95 grams of chromium(II) chloride, CrCl2 (122.9 g/mol), In 290.0 grams of water. Use the table of boiling and freezing point constants to answer the questions below. Solvent Kb (°C/m) K(°C/m) H₂O 0.512 CH3 CH₂OH 1.22 Chloroform CHCl3 3.67 Benzene C6H6 2.53 Diethyl ether CH3 CH₂ OCH₂ CH3 2.02 The molality of the solution is The freezing point of the solution is Retry Entire Group Have Changes in... [Review Topics] [References] Use the References to access important values if needed for this question. m. °C. 1.86 1.99 Scholarship Ameri... 5.12 bio 1108 chat more group attempts remaining SAVAGE X FENTY... Previous Next> Save and Exit

please explain

wOn Camp X Dashboard 9Microsoft PowerPoint - Chap X 101 Chem 1 G celsius to kelvin - Goog app.101edu.co Question 6 of 10 A 83.5 g sample of a nonelectrolyte is dissolved in 374.5 g of water. The solution is determined to have a boiling point of 102.3 °C. What is the molar mass of the compound? (Kb for water is 0.510 °C/m).