a burette had 10ml of water in it before it was filled with NaOH. would this increase, decrease, or not affect the molarity of NaOH in the burette? Explain!

add water to base? It has to make it more neutral, or decrease pH

please be specific. does it increase or decrease molarity of NaOH? or does the molarity stay the same???

If you add water to NaOH, it has to dilute it.

ok thanks!

To determine if filling a burette with water before adding NaOH would affect the molarity of NaOH, we need to understand the concept of molarity and how it is calculated.

Molarity (M) is defined as the number of moles of solute (in this case, NaOH) dissolved per liter of solution. Mathematically, it can be calculated using the following formula:

Molarity (M) = moles of solute / volume of solution (in liters)

In this scenario, the burette initially contains 10 mL of water. Let's assume we are going to add a known, fixed volume of NaOH solution to the burette.

If we add NaOH to the burette, the volume of the solution will increase, but the volume of the solute (NaOH) will also increase. However, since the initial 10 mL of water is not contributing any moles of solute (as water is not the solute being measured), the molarity of NaOH will not be affected.

Therefore, filling the burette with water before adding NaOH will not affect the molarity of NaOH in the burette. The molarity depends solely on the amount of NaOH dissolved and the total volume of the solution, not on the presence of water.