Question

10. Write the balanced equation for the neutralization reaction between a) hydrochloric acid and potassium hydroxide b) acetic acid and sodium hydroxide 11. A 20 mL solution of 3 M HCl is diluted to 60 mL. What is the concentration of the 60 ml solution

Answer 1

© Balanced chemical equation! - (@ Hd (ag + KOH Keleies + Hop (W . (99) [b] CH3COOH lags + NaOH = CH.coo Wat Hy sy 199 To attain neutralization point Hel required I mole of Imole of holt. acetic acid required Imole And I mole of of Naoh * Initial volume of Hel a 20 m2 (or 0.0202 Initial concentration of Hel 23.0m * Aftes dilution volume of Hel = 60 mL or) 0.0602 concencentrakon - 9 on dilution number of moles of Hel present in solution was not changed. so. [M,Y, = M v2 By using this formula we have to

of Hel after dilution. calculate concentration Before dilution. Me = 3.0m ✓ = 0.020 L After dilution M2 = ? ₂ = 0.060 L [My = ni] h =nal where n = Number of moles .. so my, = MaYa My z Mavi Mg = M . 30X0.0204 - 0.0604 Mg = 1.0M