Can someone please help me on this?

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

How many lines can be drawn through points j and k? 0 1 2 3

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6