Calculate the mass, in grams, of Al(OH)3 (molar mass 78 00 g mol) formed by the reaction of exactly 0 500 L of 0 100 M NaOH with excess Al(NO 3 ) 3 Strategy This problem is identical in strategy to the stoichiometry problems in Chapter 3 We write the balanced equation, then calculate the number of ...

First write the chemical equation Second calculate the number of moles o ...

Calculate the mass, in grams, of Al(OH)3 (molar mass = 78.00 g/mol) formed by the reaction of

Question:

Calculate the mass, in grams, of Al(OH)3 (molar mass = 78.00 g/mol) formed by the reaction of exactly 0.500 L of 0.100 M NaOH with excess Al(NO₃)₃.

Strategy

This problem is identical in strategy to the stoichiometry problems in Chapter 3. We write the balanced equation, then calculate the number of moles of the given species. Th en we use the coeffi cients of the equation to calculate the number of moles of the desired species. Finally, we convert from moles of the desired species to mass, using the molar mass of Al(OH)₃. The only change in the solution when compared to Chapter 3 is that we will use volume and concentration to compute the number of moles of the given species. Volume (L) of NaOH solution Molarity of NaOH solution Moles of NaOH Coefficients in chemical equation Moles