A 0.5118 g sample of CaCO_3 is dissolved in concentrated HCl (12 M) the solution was diluted to...
Question:
A {eq}\displaystyle \rm 0.5118 \ g {/eq} sample of {eq}\displaystyle \rm CaCO_3 {/eq} is dissolved in concentrated {eq}\displaystyle \rm HCl \ (12 \ M) {/eq} the solution was diluted to {eq}\displaystyle \rm 250 \ mL {/eq} in a volumetric flask to obtain a solution for standardizing the EDTA titrant.
How many moles of {eq}\displaystyle \rm Ca^{2+} {/eq} is in a {eq}\displaystyle \rm 25 \ mL {/eq} aliquot of the solution?
Molarity
The concentration of a solution can be expressed in molarity. Molarity can be calculated by dividing the moles of the substance divided by the total volume of the solution in liters.
Answer and Explanation: 1
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View this answerWe first need to determine the concentration of the stock solution in molarity.
{eq}\begin{aligned} Molarity\;&=\;\frac{moles\;Calcium}{L\;soln}\\ ...
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Stoichiometry: Calculating Relative Quantities in a Gas or Solution
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Chapter 9 / Lesson 4
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Learn how to find the molarity of a solution or the moles of gas in a given volume using stoichiometry. See examples of calculating moles from molarity.
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