stomach because the number of moles of HCl reacted with the NaOH is 0.00216 moles‚ which is less than Gaviscon. The number of moles of NaOH that were added from the burette is 0.00327 moles (1 tablet of Gaviscon). However‚ for Quick-eze‚ the number of moles is 0.00216 moles (1 tablet). This means the average volume of the NaOH have affected the number of moles as the concentration of the sodium hydroxide is 0.1M. This means that if less NaOH was required to neutralise the acid‚ the number of moles of
Premium Acid Chemistry Water
EXPERIMENT NO. 5 COMMON ION EFFECT Lopez‚ Pauline G. HIJ-2‚ Group No. 5‚ Ms. Jervee M. Punzalan Ramales‚ Ayane Mark Q. September 15‚ 2014 I. ABSTRACT The common ion effect involves how the solubility of a salt changes when some ion that is common to both added substance and the salt in question is introduced. The presence of a common ion hinders the ionization of a weak acid or a weak base hence this is known as the common ion effect. Simply put‚ the effect
Free PH Buffer solution Acid dissociation constant
subgoals had to be achieved first. To find the solubility of the fats‚ oils‚ soaps‚ and detergents‚ each of them were placed into different solvents to see if they dissolved. None of the oils and fats were soluble in water (H2O)‚ sodium hydroxide (NaOH)‚ or hydrochloric acid (HCl)‚ but they were soluble in toluene and partly soluble in acetone. Testing the soaps and detergents for their solubility in water is the most important solubility test because they should form a lather that allows them to
Premium Soap Sodium hydroxide
Introduction: Thermochemistry is the branch of chemistry that studies the energy and heat associated with chemical reactions and/or physical transformations. A reaction may release or absorb energy‚ and a phase may change‚ such as in melting and boiling. Thermochemistry focuses on these energy changes‚ particularly on the system ’s energy exchange with its surroundings. In combination with entropy determinations‚ it is used to predict whether a reaction is spontaneous or non-spontaneous‚ favourable
Premium Energy Chemical reaction Thermodynamics
concentration‚ temperature‚ and pressure. It was determined that in the equilibrium of chromate and dichromate it is an exothermic reaction and in the equilibrium of ferrocyanide and ferric ferrocyanide that it is an equilibrium shift to the left after adding NaOH. Experiment and Observation: The purpose of this experiment was to observe the color change and the concentration to determine the
Premium Chemistry Chemical reaction Temperature
Make your own biodiesel Biodiesel Converting vegetable oil to biodiesel is probably the best all-round solution (or we think so anyway). Where do I start? Start with the process‚ NOT with the processor. The processor comes later. Start with fresh unused oil‚ NOT with waste vegetable oil (WVO)‚ that also comes later. Start by making a small‚ 1-litre test batch of biodiesel using fresh new oil. You can use a spare blender‚ or‚ better‚ make a simple Test-batch mini-processor. Keep going
Premium Ethanol Methanol Biodiesel
after the following solutions are mixed together: a) 15 cm3 of 0.1 moldm-3 HCl and 10 cm3 of 0.1 moldm-3 NaOH b) 10 cm3 0.1 moldm-3 HCl and 15 cm3 of 0.1 moldm-3 NaOH 3. Sketch pH curves for the following titrations: a) 20 cm3 0.10 moldm-3 NH3 against 0.1 moldm-3 HCl b) 20 cm3 0.10 moldm-3 NaOH against 0.2 moldm-3 HCl c) 20 cm3 0.10 moldm-3 CH3COOH against 0.06 moldm-3 NaOH d) 20 cm3 0.10 moldm-3 CH3COOH against 0.15 moldm-3 NH3 4. Given the following pKIn values: |
Premium Base Sodium hydroxide PH indicator
After one drop of 0.50M NaOH‚ the pH jumped to 10.3‚ and the change was 2.9. pH of 25mL of created buffer solution = 6.15 Volume of HCl Added to 25mL of Buffer Solution | pH | Concentration of Acid After Addition | Concentration of Conjugate Base After Addition | 0mL | 6.15 | 0.378M (initial) | 0.122M (initial) | 1mL | 6.02 | 0.403M | 0.0968M | 2mL | 5.87 | 0.427M | 0.0726M | 3mL | 5.67 | 0.451M | 0.0483M | 4mL | 5.46 | 0.468M | 0.0310M | Volume of NaOH Added to 25mL of Buffer Solution
Premium PH Acid dissociation constant Buffer solution
range (6.8-8.4) is suitable for the titration. P.2 Experiment V02 An analysis of aspirin tablets Name: Seat No.: Date: Grade: Brand X Given: [H2SO4] = 0.050 mol dm-3 [NaOH] = 1.027 mol dm-3 Calculation: Mass of aspirin = 1.092 g (3 tablets) Average vol. of H2SO4 used (in
Premium Sodium hydroxide PH indicator Titration
and the mean was taken for the graphical data analysis. Results Results: The reactions R1a = HCl + NaOH --> NaCl + H2O and R2a = NH4Cl and NaOH --> NaCl + H2O + NH3 both were exothermic. The ÄH of the target reaction R3a = HCl + NH3 --> NH4Cl could be measured and calculated. Similarly‚ I used R1b NaOH(s) + H2O --> Na(aq)+OH(aq) and R2b = NaOH + HCl --> H2O + Na(aq) + Cl(aq) to calculate R2b = NaOH(s) + HCl --> Na(aq) + Cl(aq) + H2O and compare it with the measured values. Conclusions/Discussion
Premium Enthalpy Chemical reaction Thermodynamics