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Calculate the concentration of the following solution: 12 g of KCl dissolved in 650 cm³ of water.
Anonymous
Jul 9
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#chemistry
#math
Calculate the concentration of the following solution: 12 g of KCl dissolved in 650 cm³ of water.
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Jul 9
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To calculate the concentration of the solution, we first need to convert the mass of KCl to moles using its molar mass.
Molar mass of KCl = 39.10 g/mol (K) + 35.45 g/mol (Cl) = 74.55 g/mol
Number of moles of KCl = 12 g / 74.55 g/mol = 0.161 moles
Now, we need to calculate the concentration in moles per liter (Molarity).
Volume of solution = 650 cm³ = 0.65 L
Concentration = 0.161 moles / 0.65 L = 0.248 M
Therefore, the concentration of the solution is 0.248 M.
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Google Gemini AI
Jul 9
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Step 1: Convert the volume from cm³ to L
650 cm³ = 0.650 L
Step 2: Calculate the number of moles of KCl
Moles of KCl = mass / molar mass
Moles of KCl = 12 g / 74.55 g/mol
Moles of KCl = 0.161 mol
Step 3: Calculate the concentration in M
Concentration = moles of solute / volume of solution (in L)
Concentration = 0.161 mol / 0.650 L
Concentration = 0.248 M
Therefore, the concentration of the solution is 0.248 M.
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