what is the formula that will be used for this ?

what volume of .100 M NaOH will react completely with 24.00 mL of .900 M HCl?

Write the equation and balance it.

NaOH + HCl ==> H2O = NaCl

mols HCl = L x M = ??
mols HCl = mols NaOH (the equation is 1:1)
mols NaOH = L x M
You know mols NaOH and L, M is the only unknown.

To determine the volume of NaOH that will react completely with a given volume of HCl, we can use the concept of stoichiometry and the balanced chemical equation for the reaction between NaOH and HCl.

The balanced chemical equation for the reaction is:
NaOH + HCl → NaCl + H2O

Based on the balanced equation, we can see that the stoichiometric ratio between NaOH and HCl is 1:1. This means that 1 mole of NaOH will react with 1 mole of HCl.

To calculate the volume of NaOH that will react completely with a given volume of HCl, we can set up a proportion using the molarity and volume values.

First, let's convert the given volume of HCl and its molarity into moles:
moles of HCl = volume of HCl (in liters) x molarity of HCl

Given:
Volume of HCl = 24.00 mL = 24.00 mL/1000 mL/L = 0.02400 L
Molarity of HCl = 0.900 M

moles of HCl = 0.02400 L x 0.900 M = 0.02160 moles

Since the stoichiometric ratio between NaOH and HCl is 1:1, the same number of moles of NaOH will react completely with the given moles of HCl.

Finally, to calculate the volume of NaOH, we divide the number of moles obtained above by the molarity of NaOH:
volume of NaOH = moles of NaOH / molarity of NaOH

Now, we need to know the molarity of NaOH solution to calculate the volume of NaOH.

Please provide the molarity of the NaOH solution to proceed with the calculation.