Question

You have a toxic chromium nitrate solution (5.00x10^2 g total solution mass). You don't the oxidation state of the chromium ( assume that it does not change over the course of this protocol. By adding excess sodium carbonate (na2co3), you precipitate 67.6g of cr2 (co3)3. Calculate the molality of the original chromium nitrate solution.
A. 1.23 Molal
B. 1.34 Molal
C 1.39 Molal
D. 1.48 Molal
E. 1.57 molal

Answer 1

Ctln C«) 64.6 3867ง molútyaf G(ngÀ: a3s.crohu.