What mass of water must be used to dissolve 0.500 kg C2H5OH to prepare a 3.00 m solution?

Does the energy in a solid increase or decrease when changing to a liquid?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

How many grams of phosphorus are contained in 5.09 moles of phosphorus?