microgram per microlitre primer to molarity conversion.. - calculation plss (Dec/19/2007 )

10 microgram per 10 microlitre, 10 base primer solution.. how do i calculate the molarity for this?

This is 1 g/liter. The MW of this oligo is 10 bases * 330 g/mole/base = 3300 g/mole. So you have 1 g/l over 3300 g/mole = 303 micromoles/liter = 303 uM.