Acids and Alkalis Lab Report Essay

An acid is a group of chemicals. Acids ar positively charged ions, they are liquid and are solutions of pure compounds in water. If you want to know if something is an acid, you fag end test it by using litmus test paper. Acids forgeting twisting litmus paper red, whilst alkalis will turn it blue. Alkalis are negatively charged ions and are usually solid. AimTo find out how much of different acids is ask to neutralize 25mls of sodium hydroxide solution (NaOH).HypothesisThe strongest alkali will engage the smallest amount of an acid to cancel out and the weakest will need more acid. Variables Control Independent Dependent The indicator, NaOH H2SO4 HClHNO3 The chemical reaction betwixt the acids and alkali. Materials / Apparatus * H2SO4 * HCL * HNO3 * Alkali (NaOH) * Stand * Burette * Beaker * Funnel * Bunsen Burner * melting pot * Phenolphyalein Method 1. Pour the 25 ml of NaOH into a beaker. 2. Drop lead drops of phenolphyalein into the beaker. 3. The solution will now tur n pink. . Through a funnel, pepper the acid into the burette.Start dripping a few drops one by one into the beaker. 6. The solution will start getting a lighting shade of pink. 7. Stir the beaker around. 8. Once the solution turns clear, stop adding more acid. 9. judge the amount of acid used. 10. Take the solution and pour a snowflake of it into a crucible. 11. Light the Bunsen burner. 12. The salt solution will turn into salt crystals when it is heated. NaOH + HCl = NaCl + H2O NaOH + HNO3 = NaNO3 NaOH + H2SO4 = Na2SO4 + 2H2O ObservationsAlkali Acid groins Observation NaOH HCL 1 gram molecule Took 4 ml to neutralize. No further experiment was made. NaOH HCL 0. 1 Mole Took 31 ml to neutralize. 2. 30 transactions until pink salt crystals were formed. NaOH HNO3 1 Mole Took 19. 2 ml to neutralize. 2 minutes until good albumen salt crystals were formed. NaOH H2SO4 2 Moles Took 1. 1 ml to neutralize. 2. 15 minutes until ring of white salt were formed. Analysis The weakest aci d (HCl 0. 1 Mole) needed the most(prenominal) alkali to be made into salt and the strongest (H2SO4 2 Moles) needed the least. dissimilar experiments made different salts. Conclusion The strongest acid will work blistering and you will need less. This is because it is a lot more reactive than the weaker acids and it will want to react much faster with the alkali. Evaluation In my group, Zuzanna and I were the ones doing the experiment while everyone else observed and likewisek notes on what happened. The first time, we dropped one too many drops of H2SO4 in the alkali so the alkali quickly off pink again.We had to try it six times before we could get it chastise because we kept putting too much in or we would forget how much we put in. But after a few tries we at last got it to work and we got the correct solution. Therefore we could finally go on to the neighboring step and heat up the solution. It took our salt around 2 minutes and 15 seconds to heat up, evaporate and leave u s with small sound of white salt crystals. Our salt crystals did not turn out as the best, but they were successful.