# How do you find the number of moles of NaOH in a titration?

## How do you find the number of moles of NaOH in a titration?

Step 1: Calculate the amount of sodium hydroxide in moles

- Amount of solute in mol = concentration in mol/dm 3 × volume in dm 3
- Amount of sodium hydroxide = 0.100 × 0.0250.
- = 0.00250 mol.
- The balanced equation is: NaOH(aq) + HCl(aq) → NaCl(aq) + H 2O(l)
- So the mole ratio NaOH:HCl is 1:1.

## How do you find the moles of NaOH at the equivalence point?

To find the moles of base used to reach equivalence, you simply need to multiply the volume of base you added to reach equivalence by the molarity of the base (which you determined from your standardization runs). You also will then know the moles of acid, since they have to be the same at equivalence.

**How do you solve moles of NaOH?**

Since the molar mass of NaOH is 40 g/mol, we can divide the 90 g of NaOH by the molar mass (40 g/mol) to find the moles of NaOH. This the same as multiplying by the reciprocal of 40 g/mol.

**How many moles of NaOH will be used in the titration with 33 ml of 3 M HCl to form nacl and water?**

So 33 times three Gives us 99 million bowls of. However, since the three moles, the three molar solution only has one significant digit, we need to round this answer to one significant digit, which means we have 100 million moles of sodium hydroxide are required to neutralize this acid. So that is our answer.

### How do you calculate moles of HCl in a titration?

When the base neutralizes the acid, the number of moles of H+ = the number of moles of OH-. Therefore, the number of moles of H+ = 0.0125 moles. Every mole of HCl will produce one mole of H+; therefore, the number of moles of HCl = number of moles of H+. The concentration of the HCl is 0.25 M.

### How do you determine the number of moles in a sample?

To find the number of moles in a sample, simply weigh it and divide the weight by the molecular weight. The quotient is equal to the number of moles. Example: How many moles are there in 300 grams of sodium bicarbonate? The molecular weight of sodium bicarbonate is 84 grams/mole.