You prepare a solution by dissolving 5.23 grams of Iron (II) nitrate in enough water to
make 256.0 cm3 of solution. What is the concentration of the solution?

I keep getting 0.05 M but it says it's wrong. Can anyone explain how to do it?

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse