How many moles are in 10.0 grams of sodium hydroxide?

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

C3h8o3 - glycerol major species present when dissolved in water

Which other elements contain the same number of outer electrons as sodium