in a titration, 0.0400 mol of solid NaOH is required to neutralize 10.0 mL of H2SO4(aq). From these data, the [H2SO4] is:
Write the equation and balance it.
Convert NaOH to moles. moles = M x L.
Using the coefficients in the balanced equation, convert moles NaOH to moles H2SO4.
Now convert moles H2SO4 to M from M = moles/L
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To find the concentration of H2SO4, we need to first determine the number of moles of H2SO4 in 10.0 mL of the solution.
Step 1: Calculate the number of moles of NaOH
Given that 0.0400 mol of NaOH is required to neutralize the solution, we know that the number of moles of H2SO4 is equal to the number of moles of NaOH.
Therefore, the number of moles of H2SO4 is also 0.0400 mol.
Step 2: Convert the volume of H2SO4 to liters
The volume of H2SO4 is given as 10.0 mL. We need to convert this volume to liters for further calculations.
1 mL is equal to 0.001 L.
Therefore, the volume of H2SO4 in liters is 10.0 mL x 0.001 L/mL = 0.010 L.
Step 3: Calculate the concentration of H2SO4
Concentration is defined as moles per liter (mol/L). We need to divide the number of moles of H2SO4 by the volume in liters to find the concentration.
[H2SO4] = moles of H2SO4 / volume in liters
[H2SO4] = 0.0400 mol / 0.010 L
[H2SO4] = 4 mol/L
Therefore, the concentration of H2SO4 is 4 mol/L.
To find the concentration of H2SO4, we need to use the equation:
Molarity (M) = (moles of solute) / (volume of solution in liters)
Given that 0.0400 moles of NaOH is required to neutralize 10.0 mL (0.0100 L) of H2SO4, we can calculate the molarity of H2SO4.
Molarity (H2SO4) = (0.0400 moles) / (0.0100 L) = 4.00 M
Therefore, the concentration of H2SO4 is 4.00 M.