What is the concentration of the Ba(OH)2 solution in mol/L?

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To calculate the concentration of the Ba(OH)2 solution, first determine the mass of Ba(OH)2 by subtracting the mass of the empty crucible from the mass of the crucible with precipitate, resulting in 0.129g. Next, find the molar mass of Ba(OH)2, which is approximately 171.34 g/mol. Using the mass and molar mass, calculate the number of moles of Ba(OH)2. Finally, since the solution volume is 10 mL (or 0.01 L), divide the number of moles by the volume in liters to find the concentration in mol/L. This method provides the necessary steps to determine the concentration accurately.
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Homework Statement



suppose that for a 10 mL sample of Ba(OH)2 solution, the mass of the cubicle with precipitate is 17.539g and the mass of the empty cubicle is 17.410g. calculate the concentration of the Ba(OH)2 solution from this data.

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You can find the molar mass of Ba(OH)2 with the periodic table, the change in mass of the crucible is the mass of the Ba(OH)2, which means you can find the # of moles of Ba(OH)2 you got. And finally you know that concentration is mole per liter.
 
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