A chemist is making a laboratory solution for his upcoming experiment. He wants to make a solution with a concentration of 12M. If he needs 3 L of solution, how many moles of solute will he need to add?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.