Chemistry

posted by .

A student completes a titration by adding 12.0 milliliters of NaOH(aq) of unknown concentration to 16.0 milliliters of 0.15 M HCl(aq). What is the molar concentration of the NaOH(aq)?

• Chemistry -

Ð—Ð°Ð¿Ð¸ÑˆÐµÐ¼ ÑƒÑ€Ð°Ð²Ð½ÐµÐ½Ð¸Ðµ Ñ€ÐµÐ°ÐºÑ†Ð¸Ð¸:
NaOH + HCl = NaCl + H2O
C NaOH*V NaOH = C HCl*V HCl
Ð³Ð´Ðµ: C NaOH Ð¸ C HCl - Ð¼Ð¾Ð»ÑÑ€Ð½Ñ‹Ðµ ÐºÐ¾Ð½Ñ†ÐµÐ½Ñ‚Ñ€Ð°Ñ†Ð¸Ð¸ Ð³Ð¸Ð´Ñ€Ð¾ÐºÑÐ¸Ð´Ð° Ð½Ð°Ñ‚Ñ€Ð¸Ñ Ð¸ Ñ…Ð»Ð¾Ñ€Ð¸Ð´Ð° Ð²Ð¾Ð´Ð¾Ñ€Ð¾Ð´Ð° ÑÐ¾Ð¾Ñ‚Ð²ÐµÑ‚ÑÑ‚Ð²ÐµÐ½Ð½Ð¾, Ð¼Ð¾Ð»ÑŒ/Ð»; V NaOH Ð¸ V HCl - Ð¾Ð±ÑŠÐµÐ¼Ñ‹ Ñ€Ð°ÑÑ‚Ð²Ð¾Ñ€Ð¾Ð² Ð³Ð¸Ð´Ñ€Ð¾ÐºÑÐ¸Ð´Ð° Ð½Ð°Ñ‚Ñ€Ð¸Ñ Ð¸ ÑÐ¾Ð»ÑÐ½Ð¾Ð¹ ÐºÐ¸ÑÐ»Ð¾Ñ‚Ñ‹ ÑÐ¾Ð¾Ñ‚Ð²ÐµÑ‚ÑÑ‚Ð²ÐµÐ½Ð½Ð¾, Ð».
ÐœÐ¾Ð»ÑÑ€Ð½Ð°Ñ ÐºÐ¾Ð½Ñ†ÐµÐ½Ñ‚Ñ€Ð°Ñ†Ð¸Ñ NaOH Ñ€Ð°Ð²Ð½Ð°:
C NaOH*V = C HCl*V HCl/V NaOH = 0,016*0,15/0,012 = 0,2 Ð¼Ð¾Ð»ÑŒ/Ð»

We write the reaction equation:
NaOH + HCl = NaCl + H2O
C NaOH * V NaOH = C HCl * V HCl
where: C NaOH and C HCl - molar concentration of sodium hydroxide and hydrogen chloride, respectively, mol / l; V NaOH and V HCl - volumes of the solutions of sodium hydroxide and hydrochloric acid, respectively, l.
Molar concentration of NaOH is:
C NaOH * V = C HCl * V HCl / V NaOH = 0,016 * 0,15 / 0,012 = 0,2 mol / l

Similar Questions

1. chemistry

Question 26A student completes a titration by adding 12.0 milliliters of NaOH(aq) of unknown concentration to 16.0 milliliters of 0.15 M HCl(aq). What is the molar concentration of the NaOH(aq)?
2. chemistry

A student completes a titration by adding 12.0 milliliters of NaOH(aq) of unknown concentration to 16.0 milliliters of 0.15 M HCl(aq). What is the molar concentration of the NaOH(aq)?
3. College Chemistry

The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from …
4. Chemistry

The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from …
5. College Chemistry

"A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from the reagent shelf …
6. chemistry

if it requires 35.0 milliliters of 0.50 molar NaOH to neutralize 25.0 milliliters of HCl, what is the concentration of the HCl solution?
7. chemistry

If it requires 30.0 milliliters of 1.2 molar HCl to neutralize 20.0 milliliters of NaOH, what is the concentration of the NaOH solution?
8. chemistry

If it requires 30.0 milliliters of 1.2 molar HCl to neutralize 20.0 milliliters of NaOH, what is the concentration of the NaOH solution?
9. Chemistry

A student completes titration by adding 12.0 mL of NaOH(aq) of an unknown concentration to 16.0 mL of 0.15M HCl(aq). what is the molar concentration of the NaOH(aq)?
10. chemistry

In a titration of 0.5 M HCl and an unknown concentration NaOH, 25.0 ml of NaOH was required to completely neutralize 25.0 ml of HCl. What is the concentration of the NaOH?

More Similar Questions