what molarity of NaCl is required to lower the freezing point of water to -15.2 degrees...

Question

Question

what molarity of NaCl is required to lower the freezing point of water to -15.2 degrees C ? use 1.853 C/m for Kf of water

science chemistry

Answer 1

Answer #1

Answer 2

Similar Homework Help Questions

Which of the following is not true? a. The freezing point of sea water is lower...

Which of the following is not true? a. The freezing point of sea water is lower than the freezing point of pure water. b. The boiling point of a water sample from the Salt Lake is lower than the boiling point of pure water. c. The freezing point of 0.1 M NaCl is lower than the freezing point of 0.05 M NaCl.
What mass of the following compounds would be required to lower the freezing point of 1,000g...

What mass of the following compounds would be required to lower the freezing point of 1,000g of water to -10c? Kf water = 1.86c/m sodium chloride magnesium chloride sodium phosphate
An aqueous solution containing sodium chloride has a freezing point that is -1.28 degrees C at...

An aqueous solution containing sodium chloride has a freezing point that is -1.28 degrees C at 1.0 atm. What is the % by mass of NaCL in this solution? HINT: The Kf for water = 1.86 degrees C kg/mol

You have a aqueous solution of NaCl that has a freezing point of -9.35°C. Assuming a...

You have a aqueous solution of NaCl that has a freezing point of -9.35°C. Assuming a van't Hoff factor of 1.9 for NaCl, what is the mass percent of chloride ion in the solution? (Kf for water is 1.86°C kg/mol).
Calculate the molality of an aqueous solution of KBr whose freezing point is -4.95 degrees celsius....

Calculate the molality of an aqueous solution of KBr whose freezing point is -4.95 degrees celsius. The Kf of water is 1.86 degrees C/m. Calculate the ideal Van't Hoff factor for KBr? Show work
Which of the following aqueous solutions has the lowest freezing point? The Kf of water is...

Which of the following aqueous solutions has the lowest freezing point? The Kf of water is 1.86 kg.oC/mol. a. 0.8 m CH3OH (methanol) b. 0.4 m NaCl c. 0.3 m MgBr2 d. 0.2 m AlF3 e. 0.25 m Ca(NO3)2 Calculate the freezing point ONLY for the solution you marked as your answer above.

What is the expected freezing point of a 0.0750 m solution of LiBr in water? (Kf...

What is the expected freezing point of a 0.0750 m solution of LiBr in water? (Kf for water is 1.86 °C/m.)
Review Constants Periodic Table The changes in boiling point (AT) or freezing point (AT) in degrees...

Review Constants Periodic Table The changes in boiling point (AT) or freezing point (AT) in degrees Celsius from a pure solvent can be determined from the equations given here, respectively: Value Units moles of solute AT = mx Kb = 7 Submit kilograms of solvent XRb moles of solutex Kf Part B AT: = mx Kf = kilograms of solvent where m is the molality of the solution, and K and K the boiling-point-elevation and freezing-point-depression constants for the solvent,...
what is the freezing point and boiling point of 1.5 m ethylene glycol in water? (...

what is the freezing point and boiling point of 1.5 m ethylene glycol in water? ( kf=1.86C/m, kb=0.51C/m)

5) At what temperature would a 1.55 m NaCl solution freeze, given that the van't Hoff...

5) At what temperature would a 1.55 m NaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86 .C/m. The freezing point for pure water is 0.0 °C and Kf is equal to 1.86 °C/m.