Question

Calculate the concentration of sodium hydroxide solution​

Answer 1

Answer:

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.

Answer 2

Explanation:

Step 1: Calculate the amount of sodium hydroxide in moles

2) Amount of solute in mol = concentration in mol/dm 3 × volume in dm 3

3) Amount of sodium hydroxide = 0.100 × 0.0250.

= 0.00250 mol.

4) The balanced equation is: NaOH(aq) + HCl(aq) → NaCl(aq) + H 2O(l)

5) So the mole ratio NaOH:HCl is 1:1