Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Separation of component of mixtures lab
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Separation of component of mixtures lab
Separation of a Mixture Objective: What are the ways to separate a mixture? Background Information: In this lab, the law of conservation of matter is involved, which is the law that matter is conserved, it can’t be created or destroyed. This is used in our lab because after separation, the mass of the three substances combined should equal the original mixture. There are also three states of matter that are used in this lab, solid, liquid, and gas. The iron filings and sand are solid, the salt water solution is a liquid, and when the water evaporates, it is a gas. To separate the mixture we were given, we needed to use three different separation methods. These consist of magnetism, filtration, and evaporation. The first is magnetism, which is the force that can attract or repel objects. We used the magnet to …show more content…
Part Two: Put the mixture of salt and sand in a beaker. Add 120 ml of water and stir. Place the filter paper at the top of the graduated cylinder and filter the mixture through it. The sand will be left in the filter paper. Scrape the sand into a beaker. Leave it to sit to let the water evaporate out of it. When the sand is dry, use the scale to measure the weight of it in the beaker. Then, clean the beaker and find the weight of it while empty. Subtract the two weights to find the weight of the sand. Part Three: Pour the salt water into a beaker. Place the beaker on the hot plate and heat it to 540° C. Boil the salt water down until only the salt remains. Find the weights of the salt beaker and beaker without the salt using the scale. Subtract the two measurements to find the weight of the salt. Add the three weights of the separated components to see if the measurement is close to the original mass of the mixture. Data: Substance Mass (grams) Original Mixture 8.69 g Iron 1.68 g Salt 2.43 g Sand 4.19 g New Total: 8.3 g
The researcher conducting this experiment is trying to find out which salt- Epsom, table salt, and sea salt- will increase the boiling point of water the most. Sodium chloride is believed to increase the boiling point of water because when salt is suspended into the water, the sodium and chlorine ions leave the “salt crystals” and mix with the water molecules. (“Why does salt… raise boiling point of water?”, 2009).
Each salt will have a concentration of one mole. A mole is the atomic weight of the compound multiplied by one gram, in 1000 ml of water. Since you will be using only 100 ml of water each time, then you must divide the atomic weight by 10 before multiplying it by one gram. You will be using a computer-interfaced Temperature Probe to monitor how much each salt decreases the freezing temperature of water, and a graph of your results will be plotted using the computer.
8. Subtract the mass of the graduated cylinder from the mass of the graduated cylinder and the alcohol to find the alcohol’s mass. Record it in your data packet.
The hypothesis that was formed in this experiment was that decantation and distillation were the techniques that would be successful in separating the three layered substances. The oil on top of the mixture was to be decanted solely, and the salt and sand layers would be distilled and separated together on filter paper on top of boiling hot water. The reason that the oil is decanted is because it doesn’t mingle with the salt and sand layers, and in addition it was the top layer, which was thought to have been easy to separate first. And as for the sand and salt, sand doesn’t mix and dissolve in water compared to salt, which does in fact dissolve, so distillation was thought to be the proper solution to separating the two
1) First, find the mass of the six metal samples with the balance. The mass of the metals will be used to calculate density and the specific heat of the metal later.
The Gravimetric Stoichiometry lab was a two-week lab in which we tested one of the fundamental laws of chemistry; the Law of Conservation of Mass. The law states that in chemical reactions, when you start with a set amount of reactant, the product should theoretically have the same mass. This can be hard sometimes because in certain reactions, gases are released and it’s hard to measure the mass of a gas. Some common gases released in chemical reactions include hydrogen, carbon dioxide, oxygen and water vapor.
In a 100ml beaker place 50mls of water, measure the temperature of the water and record this initial temperature onto a table. Set the timer and add one teaspoon of Ammonium Nitrate to the water, stir this continuously until the Ammonium Nitrate has dissolved.
A. Salt water is that little pouch that I gave you. Add all of that to 2 cups HOT water. Shake in a closed bottle until all salt crystals are gone.
Density is the mass of an object divided by its volume. Density can help you understand why objects sink or float. If the density of the object is less than the density of the water, then the object will float. On the other hand, if the density of the object is more than the density of the water than the object will sink. In this lab, the density of salt water was tested to see how the concentration of salt affected the density of the solution. The guiding question for this investigation is: How does the concentration of salt in water affect the density of the solution?
3. Why are the crucible and lid heated at the beginning of the experiment before being weighed?
Density is the ratio between mass and volume, the unit of density for solid or liquid in the metric system is measured in g/ml or g/cm^3. Mass is the quantity of matter in a particular object, the unit for measuring mass of an object is represented in kilogram (kg) or gram (g). Volume is the certain amount of space occupied by an object, the unit for measuring volume of a particular object is either represented as millimeter (ml) or cubic centimeter (cm^3). The purpose of this laboratory investigation is to provide an introduction to the concept and applications of density measurements. Several unknown samples of matter will be able to be identified based on their density measurement. Carrying out density measurement on each unknown sample of matter will help in figuring out whether the samples are made of the same material or not. The density of each sample will be calculated from the mass (weight of samples) and volume (space of samples) measurements.
Put half a cup of soil in each of the cups. Pat down to even.
the separation of large solids and fluids, by means of a filter (Lenntech, n.d.). The
4. Place the sand poring cylinder centrally on the of the calibrating container making sure that constant weight (W1) is maintained. Open the shutter and permit the sand to run into the container. When no further movement of sand is seen, close the shutter, remove the pouring cylinder and find its weight (W3).
Sand has significant value to society as a recretional products where the children play with it and the adults relax on it. Many people see sand as readily available but however it actually takes time to develop a deposits to produce a sand product for industrial uses and construction. Some of