a 12.00g sample of mgcl2 was dissolved in water. 0.2500mol of agno3 was required to precipitate all the chloride ions from the solution. calculate the purity (as a mass percentage) of mgcl2 in the sample.

Based on the narrator's comments about living with the widow douglas, the reader can infer that a) the narrator doesn't care much for civilization and its strict rules. b) the narrator admires and wants to become more civilized and refined. c) the narrator is extremely religious and of high moral standing. d) the narrator desires to become a productive member of society.

Compared with the cost of tuition, fees, and books for a traditional college course, the cost of a clep exam is:

Compare the advantages and disadvantages of using cash instead of a credit card to obtain good services