How many moles of nacl are needed for the solution?

22.6g of C2H22011,in 422 mL of solution

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid

Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.