Epsom Salt Lab

Procedure: Filled each test tube with substances provided and subjected them to various conditions. These conditions included, heat, cold water, hot water, acid and basic additions and tested on litmus paper. The reactions were observed and documented at each step.

Purpose: The purpose of this experiment is to observe chemical changes in common consumer products to determine if the chemicals are basic, acidic, or remain neutral when mixed with other chemicals.

The objective of the experiment was to observe different reactions with different chemicals. The experiments emphasized on the chemical changes occurring in acids and bases as well as color changes and bubble formations. The experiments allowed for a better understanding of the undergoing chemical changes in mixtures. Some mixtures instantly changed colors while others were transparent or foggy. Some mixtures produced thick color that created solids called precipitates. Mixtures KI + Pb(NO3)2 and NaOH + AgNO3 both produce noticeable precipitates after a while. It was interesting to see the different acidic and base reactions like the fuchsia color formation in NaOH + phenolphthalein.

1- Electronic balance In this activity, you will design an experiment to determine the effect of varying the pH of a seawater solution on calcium carbonate shells. 1.

In paragraph two, it states "Pure water contains very few ions, so it does not conduct electricity well. When table salt is dissolved in water, the solution conducts very well, because the solutions contain ions.". In paragraph four, it explains how laundry ammonia can conduct electricity. It states "When ammonia dissolves in water, it reacts with the water and forms a few ions.". In conclusion, paragraph five explains more about how ammonia can cause electricity when it is put into a solution with vinegar.

The goal of this experiment was to determine the empirical formula for a hydrate of magnesium sulfate and water. The technique that was used was measure the mass of the hydrate and then apply heat to evaporate the water. Then determine the mass of water that was in the hydrate and the mass of the remaining magnesium sulfate. The equation for the hydrate is determined by calculating the mole to mole ratio of the water and the anhydrous. The resulting formula will be formated as: MgSO4*_H2O

The purpose of this lab was to deduce the percentage of oxygen the measured amount of potassium chlorate, 1.56g. We put potassium chlorate in a crucible, and heated the crucible to burn off the oxygen in order to create potassium chloride. We found the difference of the mass of the crucible with and without the potassium chlorate first. After that, we used our data to calculate the percentage of oxygen in the potassium chlorate, which was 37.2%.

In the last article "Conducting Solutions" the main purpose is that it explains how different materials conduct electricity. In this passage, they describe an experiment with sugar and water. It says that when sugar is dissolved in water, the solution does not conduct electricity because there are no ions in the solution. It also describes experiments with vinegar and ammonia. It says that they work well as a mixture because the ammonia reacts with the acid in vinegar and hey form a lot of

A hydrate is an ionic compound that has a definite amount of water as a part of its structure that it absorbs from its environment and includes as part of its structure.

1. Using the information provided in the Introduction and your observations from Part 1, hypothesize as to the type of electrolyte the following solutions would be. Justify the hypothesis from a chemical standpoint.

For part B, 50 mL of an assigned 50 mL pH solution of either 1 M HCl, 1 M NaOH, lemon juice, and 50 mL of household bleach all in separate 250 mL beakers are to be used. For part C, a hot plate or ice are to be used to make the 1.0 mL assigned temperature specific water. This experiment will also use the 1.0 mL of 0.1 Phosphate buffer.

Using a circuit, if the substance was electrically conductive the lights would light up. The independent variables were the different samples, and the dependent variables were the conductivity testers. We used distilled water to act as a polar solvent for potential electrolytes. We hypothesized that the distilled water would not create an electric current and light up the conductivity testers, or produce bubbles. Distilled water is not electrically conductive based on Table 15.3.

Background Students had been taught ‘Electrochemistry’ as outlined in the IB Chemistry syllabus. Investigation Design an experiment that allows you to investigate a variable affecting the rate of electroplating. Your research question must be focussed and specific and must enable you to carry out your experiment safely and within the allocated time. Safety Show your research question to your teacher. Complete a safety hazard assessment before writing a full plan (a + b). Ensure your teacher approves this. Experiment If your plan is safe you will be allowed

Samples are placed in wells on the gel. A buffer is added, commonly salt water, to act as a conduit for the electrical current. As the electric current is applied, the samples begin to move through the gel depending on the contained molecule’s properties; positively charged particles will move towards the cathode and negatively charged particles will move to the anode.2 Compounds with greater charge or low mass will move through the gel matrix quicker and further.

When it comes to art there are a million things you can use to create a masterpiece, well how about salt? When salt reacts to water and paint it creates starburst, some of them can be large or small it depends on the salt. That’s where my experiment comes to place, my team and I tested Iodized, Epsom, Sea, Rock, Canning, and Table salts. We used table salt as a control, when we conducted the experiment we used 140lb paper, tube paints, our various salts, and our paint brushes. After recording the results, Epsom salt had the most successful individual starburst. Epsom salt is the best option in this experiment because it has medium sized salt crystals, it makes the best starburst, and it produces crystals in the paint which makes it look like