Friday
April 18, 2014

Homework Help: college chemistry

Posted by Anonymous on Thursday, February 3, 2011 at 9:08pm.

A 1.875 g sample of pyrazine was dissolved in 25.00g of water, producing a solution that freezes at -1.55 C. Assume the solution behaves ideally. Kf(H2O)=1.86 C/molality.
What is the experimental molecular weight of pyrazine?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes...
Chemistry - Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes...
Chemistry - Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes...
Chemistry - A solution of 1.50g of solute dissolved in 25.0 mL of H2O at 25C has...
Chemistry - What is the boiling point of a 25.20% (m/v) KNO3 solution ? (Kf of ...
chemistry - What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2...
chemistry - A sample containing 0.0500mol of Fe2(SO4)3 is dissolved in enough ...
chemistry - A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250...
Chemistry - Assuming complete dissociation of the solute, how many grams of KNO3...
Chemistry - a solution of 0.2113 g of water dissolv ed in 25g of a solvent ...

Search
Members