ipl-logo

Solubility Qualitative Reaction Lab Report

1886 Words8 Pages
bulb-icon

Recommended: Lab report of solubility

All goals were met including to identify an unknown compound by discovering the chemical and physical properties of the compounds, as well as the cations and anions, in order to compare the cost effectiveness, safety, and potential yield between the synthesis reactions for that substance. The solubility qualitative results for the unknown compound were that the solute particles completely dissolved in the solvent (water). This results means that the unknown compound is a polar molecule because the solvent of water is also a polar molecule and the basic principle of “like dissolves like” applies in this situation. So since the compound completely dissolved in water, the compound must be polar. The solubility quantitative results for the unknown …show more content…

Obviously the percent yield for the precipitate of BaSO4 for the gravimetric analysis was less than one hundred percent for multiple reasons. The percent yield for the unknown sample and authentic sample were 77.8% and 77.5% respectively. During the vacuum filtration of the solution, some of the precipitate was not completely filtered out and remained in the bottom of the flask, that remaining solution could have been centrifuged to give a more accurate value of the actual amount of BaSO4 that was produced, or that solution remaining in the bottom of the flask could have been vacuum filtrated once more to ensure that all of the precipitate particles were harvested. Another error that could have occurred would be that there was not an excess amount of K2SO4 added to the BaCl2 solution to where not all of the barium would have precipitated. So more K2SO4 solution (or unknown sample solution) could have been added to the reaction, instead of the 20.0 mL that the procedure initially recommended. That was probably the most significant source of error in the experiment. Also, another source of error is that not all of the test tubes, beakers, flasks, and funnels could have not been thoroughly cleaned out, so there could have been some contamination issues with any of the results of any of the

Show More
Related

Stoichiometry Lab Report

680 Words | 3 Pages

The cylinder was adjusted to the water level because that kept the pressure on the tube and the water inside at a constant rate throughout the tube. If the graduated cylinder had not been adjusted, the test would have been introduced to a random error because it would have been a flaw that was always present and would affect the measurements of the experiment. When the unknown anti-acid was tested the first time, the results yielded a 40.2% yield of CO2. The second trial of part B was not as accurate due to using a mass of the unknown-acid that was too small for accurate results. The lack of accuracy came from a lack of precision which resulted in a human error because the amount that was broken off and selected for the trial was too small.

Read More

Solubility Of Rock Candy Lab Report

405 Words | 2 Pages

As the temperature rises the average velocity for the particles increases. This lets them move from one position to another easily. The change in solubility with change in temperature is sometimes used to create solutions with more solute dissolved than predicted by the solubility of the substance. Rock candy is made from a supersaturated solution of sugar.

Read More

Murder Mystery Lab Report Essay

562 Words | 3 Pages

Secondly, the test tubes were not cleaned out. If there was residue from other chemicals on the test tube there could be an error in the reaction. Cleaning out the test tube before starting lab could prevent this. Finally, residue on gloves could have got into the solution. This could have caused an error in the reaction.

Read More

Salt Water Hydration Lab Report

743 Words | 3 Pages

This experiment was fairly reliable, however there was

Read More

Stoichiometry Lab Report

716 Words | 3 Pages

This means that 12% is the error percentage. The sources of this error is that when the precipitate is transferred to the filter, it sticks to the sides of the beaker/filter paper. The theoretical yield is 0.68 grams of Calcium carbonate and due to the loss of precipitate in the filter paper, and while handling the exact quantity of precipitate could not be recovered, which lead to the error Also, there may be some errors in measurement since it is not possible to measure up to two decimal places accurately. Also, while keeping the funnel at an angle some of the solution spills over to the sides causing some losses of the product. (Bhatt,

Read More

Stoichiometry Lab Report

2800 Words | 12 Pages

The data found in the investigation is concerning due to the fact that if there were no flaws in the calculations there would be a large amount of contaminants in the physical experiment. However, the scientist mostly inspected the graduated cylinder, beaker, and paper for any contaminants before starting the experiment. It is highly probable that the scientist was unable to properly create the data table, resulting in the final data being distorted. Another possible source of error was that the scientist incorrectly measured the acetic acid, sodium bicarbonate, paper, and

Read More

Solubility Of Hydrate Lab Report

1633 Words | 7 Pages

Introduction Solubility is defined in quantitative as well as qualitative term. In quantitative term solubility is defined as the concentration of solute in a saturated solution at a certain temperature, and in qualitative term, it can be defined as spontaneous interaction of two or more substances to form a homogeneous dispersion. Solubility is an intrinsic material property that can be altered only by chemical modification of the molecule. The solubility of an agent in a particular solvent indicates the maximum concentration to which a solution may be prepared with that agent and solvent.

Read More

Total Dissolved Solids Lab Report

388 Words | 2 Pages

Introductions: To determine that tap and tank water is potentially healthy drinkable liquids, finding accurate methods that determine which water source is healthier. This EEI will focus on mainly salinity, ph and total dissolved solids (TDS) levels, which are required to experiment on, to determine suitable levels of each water contaminant to find which water is more drinkable, tap or tank water. • Salinity: The salinity is the measure of salts in water. Measuring the salt in water ways is important, so that it can be controlled and managed.

Read More

How The Canopy Affects The Drop Time Of A Parachute Experiment

1672 Words | 7 Pages

In addition, another systematic error could be the weighting scale not being properly calibrated, it can be seen if the 50g masses weren’t 50g then the test would not be reproducible and deemed unreliable. This can be fixed by comparing the weight shown on each weighting scales. Because of the fact, there was no true value given, it was difficult to assume the percent error thus how much systematic error this practical was affected

Read More

Freezing Point Depression Experiment

912 Words | 4 Pages

The presence of solute lowers the freezing point, which in turn affects the calculations to determine the molar mass of the unknown. Henceforth, there are discrepancies to determine the identities of these

Read More

Pumpkin Seeds Lab Report

745 Words | 3 Pages

For instance, in this experiment, the balance used to measure the weight of the foods before and after being combusted, could only measure up to two decimal places which could have created an error in recording the actual total mass. Also, the method of this experiment involved plenty of human input which is inevitably more prone to errors. The calorimeter used to conduct this experiment was homemade and constructed with recycled items. This certainly led to an error considering that recycled materials could easily affect the accuracy of the data leading to imperfections.

Read More

Volume And Pressure Lab Report

852 Words | 4 Pages

The system in which the experiment took place was mostly closed, so neither the composition nor number of particles changed throughout the experiment. However, there was a possibility that the humididty and temperature were not definitely controlled, despite measures taken to keep them controlled, such as keeping doors and windows closed and controlling the temperature with the air conditioner and the material of the Ideal Gas Law being plastic, which is a poor conductor. Another weakness in this lab was that it was difficult to push the syringe at the same speed for each test, due to the increasing pressure, which at the smallest volumes made it difficult to push the syringe at

Read More

Silver Nitrate Test Lab Report

534 Words | 3 Pages

When observing the product, it was clear to see that the formation of a creamy precipitate in the silver nitrate test meant the bromination of trans-cinnamic acid with pyridinium tribromide was successful. First, the mass of the filter paper was 20mg. With the white crystals after filtration, the product with the filter paper was weighed to be 1.058mg. The final mass of the product was 1.038g. The limiting reagent of this experiment was determined to be trans-cinnamic acid, with (Fig. 3). The theoretical yield of the product was expected to be 944mg (Fig. 4).

Read More

Calculation Of Compound's Solubility As The Effect Of

1143 Words | 5 Pages

Abstract: Solubility refers to how a solute is capable of dissolving in a solvent. The solubility of a solute in a solvent can be dependent on the nature and components of the solvent, of the solute being dissolved in the solvent, and also the interactions among them. This experiment was carried out in order to determine a compound’s solubility as a function or in relation to temperature. Through this experiment, the dependence or effect of solubility is being tested for an unknown substance in a given amount of water at room temperature.

Read More

Solubility Equilibrium Lab Report

1444 Words | 6 Pages

Title: Solubility equilibrium Objectives: To study the thermodynamics of solubility of naphthalene in diphenylamine Introduction: Phase equilibrium is a state of balance which rate of transfer of matter or heat from one phase to the other is equal to the rate of transfer in the reverse direction at equilibrium. The driving force for a phase change is the minimization of free energy and causing material or heat transfer are balanced at equilibrium. The equilibrium phase is always

Read More

More about Solubility Qualitative Reaction Lab Report

Open Document