determine the amount of iron in a dietary supplement, a random sample of 15 tablets weighing a total of 23.58 g was ground into a fine powder. A 3.1289 -g sample of the powdered tablets was dissolved and treated to precipitate the iron as Fe(OH)3. The precipitate was collected, rinsed, and ignited to constant weight as Fe2O3, yielding 0.3691 g. calculate the iron content of the dietary supplement as g FeSO4 .7H2O per tablet

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11

Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback