What is the density of marble. What noteworthy marble: density and other properties. Chemical composition, structure and marble density
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The marble is decrypted as the "shining stone". He received such a name for many thousands of years ago, when he was detected by the Greeks. The reason is that for the presented material is characterized by a structure, which due to light transparency allows you to obtain the effect of soft radiance inside.
Over the years, this product has enjoyed tremendous demand when performing construction and facing works. Of course, to afford such a material may not all, because its value is quite high.
We will use simple equipment. What proprietary weight is the mass of solid in relation to its weight. An extreme example of this is the difference in the volume of pound feathers and a pound of gold. You could easily put a pound of gold in your pocket and leave with him, but try to put a pound feathers in your pocket. Your pocket is simply not big enough. If you take a sandstone block with a size of 2 inches 2 inches and weigh it, then take a block of marble that is 2 inches 2 inches, and weigh it, and you will find that marble is far from the sand stone.
As part of this amazing stone, limestones or dolomites are present, while they do not change their properties even with metamorphosis. Most often you can see products obtained from marble in two shades: white and gray. But this is not all the color of the stone.
This means that, although they occupy the same space, their weight is definitely different. To determine the proportion of each mineral, a standard is necessary for measuring each of them. The standard that was selected was the weight of water. To determine the share of the mineral, you simply take a sample of the ore of the known size and place it in the volume of water. Weigh the water that was ousted by a mineral. This will give you the ratio between mineral and water. As soon as you know how much mineral scales in relation to the water is easily easily.
As an example, one liter of water weighing one thousand grams. As an example, let's say that the weight of the sample was three thousand four hundred grams. You know that ore weighs five times more water that she displaces. In other words, if a thousand ore sample grams were measured, it would have made one fifth volume of equal water weight. Or every time the weight of the sample increased by a thousand grams, one fifth or twenty percent was ore. The weight of the sample increased by a thousand gram minus one fifth of the total water weight.
Application area
Such a large number of positive properties made it possible to obtain a wide range of applications. Of course, due to the high cost, not every wishes can afford such pleasure, but the one who has already dealt with this material will celebrate its high quality and beautiful appearance. Where do this unique natural material use?
This is the quantity that ore outdown. It weighs a thousand grams divided by five, equal to two grams. This means that our three-hundred gram sample of three hundred grams is sixty percent of solids, forty percent of water. How to measure the share of minerals and rocks.
How to get the specific weight of the dry matter
To obtain solid particles in a pulp from the specific gravity of this cellulose, you need to know the specific weight of the dry matter in the pulp. Below is a simplified procedure for obtaining this figure. Place a weighted amount, say 200 grams, dry solids in a dry graduate. Add a measured water volume to this graduate, say, 500 cubic centimeters. Measure the increase in the volume caused by dry solid body, displacing part of the water. Divide the weight of dry solid particles per difference in volume.
Very often presented stone use in the manufacture of monuments. As a rule, it concerns monumental sculptures and tombstones. It can also be used as a piece construction stone when performing outdoor and interior decoration houses. Also for finishing homes can be used presented material in the form of crushed and ground stone.
The result, 00 is the proportion of dry matter. This video explains this particular gravitational well and the principle of Archimedes. Density Marble Race - Simple scientific activitywhich is excellent for group and group experiments, but can be adapted for one person. Chemistry and physics have never been more interesting for all ages!
Disclaimer: This post contains affiliate links. The density is one of those things with which we can play a simple, fun way and always leave it, asking for more. The density is the relationship between weight and volume and equal to how the dense substance is packaged together in the substance. With a liquid density, it can be equated to the thickness of the fluid in its simplest form. The thicker liquid, the more dense it.
On video - the main properties of marble:
The boards made of pure calcite marble are in great demand in electrical engineering. Here they are used as a panel of instrument, distribution and dispatching shields. Marble crumb and crushed sand found their use in the field of architecture and plaster. Very often, the crumb is used when cooking concrete for the foundation. In this case, it is used as a placeholder. Marble flour found its use in agriculture.
To explore this concept, we decided to check the density of some household fluids using something that children love, the density of the marble race! To make this experiment with marble density racing, you will need. Compliance with transparent containers. At least two different liquids. We tested water, vegetable oil, baby oil and corn syrup. In subsequent tests, we added maple syrup, shampoo and some others vegetable oils. Gloomy - make sure they have the same size and weight.
Additionally - stopwatch optional - scale. To configure the experiment, fill each container with another liquid. Discussed what we mean by fluid density, ask children to study liquids and decide which one, in their opinion, is the most dense. Plus, if he moved the test tubes, the corn syrup moved the smallest number. Explain that for this experiment, we are going to make a marble race and marble drops into each of the liquids. Now ask them about your hypothesis, for which marble will occupy the most time to sink the bottom.
For lining of your facade, it is possible to use gray marble slabs. It is also used in the manufacture of steps and windowsides. Such products simply incredibly beautifully look at any interior, and marble degrees are able to serve about 500 years. So pleased with your beauty this material will be many more years.
Marble is a universal material, which besides its unique performance, can also boast of incredible beauty. Many people who use this material when finishing their home note that severe climatic changes are not terrible for such a stone. Even with severe frost, marble retains its beauty.
Examples of solving problems
Ask for children to take marble and kept it over the discovery of one of the liquids. Let everyone immediately throws balls. As long as you have chosen several liquids with perfectly different densitiesshould not have a lot if there are small differences in how fast children fall. Corn syrup took almost half a minute to get to the bottom. For older children, they can use stop clock and droplet time.
Another thing you can do is weigh each liquid to see the difference in weight and compare it with the results of your marble density race. It helps strengthen the weight ratio to the density. Materials for kitchen and bathrooms countertops in the United States over the past decade, household owners have become more and more interested in to learn the differences between these two natural stones. Many household owners want to know which material is suitable for kitchen countertopsIt is preferable to bathroom toilet tables, which stone is good for external kitchens if marble can be used as kitchen counters, etc.
Definition
Marble - this is rock The basis of which is calcite, i.e. calcium carbonate. Under normal conditions, it is a white powder (Fig. 1) decaving when calcined and melting without decomposition under excess pressure carbon dioxide.
It is practically not dissolved in water, does not react with alkalis. Decomposes with acids, ammonium chloride in solution. Translated into a solution with an excess of carbon dioxide, forming calcium bicarbonate.
Both granite and marble, naturally found stone materialsextracted directly from the Earth. Although marble and granite have some common similarities, they also have significant differences. Your decision on the installation of marble and granite counters in your home depends on the location of the counters and how you will use them and maintain.
Granite occurs due to solidification and cooling of magma deep inside the Earth for millions of years. It is classified as a magmatic stone because of its origin due to the cooling of the molten magma. In the process of heating and then slow cooling granite is formed as extremely solid material.
Fig. 1. Calcium carbonate (marble base). Appearance.
The main marble constants are shown in the table below.
Table 1. Physical properties and marble density.
Chemical composition, structure and marble density
The chemical formula of marble corresponds to calcium carbonate formula - Caco 3. It shows that in the composition of the molecules of this complex substance is one calcium atom (Ar \u003d 40 A.M.), one carbon atom (AR \u003d 12 AE.M.) and three oxygen atoms (Ar \u003d 16 A. eat.). The molecular weight is 100 AE.M.
Granite consists mainly of polespotaQuartz, who is a very solid mineral. Marble is classified as a metamorphic stone, because it is created by transforming another type of stone called a sediment stone. Sedimentary rocks are formed from precipitation on Earth in combination with a recessed plant life under the ground for a long period of time. These sedimentary breeds are converted into marble with intensive heating and pressure. This process includes other minerals in marble, which can give a stone attractive colors.
The marble includes impurities of various nature, most often of which there are oxides and sulphides of iron, iron-containing silicates, iron hydroxides, carbonates of manganese and iron, graphite, and bitumen. Each substance gives meromore the appropriate color: red (pink), blue-black, green, yellow and brown, gray, bluish and black (in the order of enraged impurities).
Thus, mostly marble arises as limestone and turns into marble. Marble mainly consists of calcium carbonate, which is much softer than granite components. Granite and marble have a slightly similar view; However, with attentive consideration, you can detect certain differences. Natural color variations that appear both in granite and in marble, differ between two stones.
As a general subset building materials The natural stone has at least two striking characteristics that seem to contradict each other. First, the use and popularity of natural stones surfaces was consistent for thousands of years, as well as in many cultures and traditions.
Examples of solving problems
Example 1.
| The task | Find the oxygen density of the mixture of gases in which the volume fraction of oxygen is 20%, hydrogen - 40%, the rest is hydrogen sulfide H 2 S. |
| Decision | Volumetric shares of gases will coincide with molar, i.e. With the shares of the amount of substances, this is a consequence of the Avogadro law. Find a conditional molecular weight of the mixture: M R Conditional (Mixture) \u003d φ (O 2) × M R (O 2) + φ (H 2) × M R (H 2) + φ (H 2 S) × M R (H 2 S); Specific and marble densitySecondly, a natural stone Ideally combined with modern design. This is a contradiction that you can really appreciate, proving that sometimes these materials we calculated all over, which have the greatest meaning in those spaces that are most important for us. But it should be noted that not all natural stones You can proceed in the same way. As part of this subset of the material there are great differences. These are areas that are typical for the concentrated movement of legs, moisture and incident items. So, bearing in mind these common factors, take a look at some of the sources, the appearance, use, advantages and problems of each. Granite Origin: Granite is a mountain breed, which means that this is the result of the molten rock, which has cooled in underground pockets until it becomes solid. φ (H 2 S) \u003d 100% - φ (o 2) - φ (H 2) \u003d 100% - 20% - 40% \u003d 40%; M R CONDITIONAL (Mixture) \u003d 0.2 × 32 + 0.4 × 2 + 0.4 × 34 \u003d 6.4 + 0.8 + 13.6 \u003d 20.8. Find relative density Mixtures of hydrogen: D O2 (Mixture) \u003d M R Conditional (Mixture) / M R (O 2); D O 2 (Mixture) \u003d 20.8 / 32 \u003d 0.65. |
| Answer | The oxygen density of the mixture consisting of oxygen, hydrogen and hydrogen sulfide is 0.65. |
Example 2.
Chemical composition, structure and marble density
Granite colors depend on different minerals, captured and suspended inside the molten rock during this process. it different materialswhich give granite incredible density and stability. Granite is one of the hardest materials on Earth.
Appearance: The color range of granite is incredibly diverse: from the absolute black to a white leopard, to golden yellow and beyond. Indeed, granite offers thin blues, greens and gray, which are usually popular for all types of surfaces in residential and commercial conditions. Thanks to the large content of quartz in all granite, the speckle ornaments make granite in general a distinctive stone type.
| The task | Calculate the density of methane mixture consisting of 100 ml of argon, 200 ml of oxygen and 100 ml of HCl chloride. |
| Decision | Find the volume fractions of substances in the mixture: φ \u003d v gas / v mixture_gas; φ (AR) \u003d V (AR) / V Mixture_Gas; φ (AR) \u003d 100 / (100 + 200 + 100) \u003d 100/400 \u003d 0.25. φ (O 2) \u003d V (O 2) / V Mixture_Gas; φ (O 2) \u003d 200 / (100 + 200 + 100) \u003d 200/ 400 \u003d 0.5. φ (HCl) \u003d V (HCl) / V Mixture_GAS; φ (HCl) \u003d 100 / (100 + 200 + 100) \u003d 100/400 \u003d 0.25. Volumetric shares of gases will coincide with molar, i.e. With the shares of the amount of substances, this is a consequence of the Avogadro law. Find a conditional molecular weight of the mixture: Effects: known for its immoral, professional air. Thus, it is used in corridors and foyer worldwide as outdoor coatings And as a facing of the walls to produce a good first impression in commercial turrets and hotels. It also creates elegance in residential premises. Advantages: High-quality professional appearance, high hardness. Calls: Granite is very heavy, so it is difficult to trim without experience and proper equipment. You may have to get special tools to cut it, or get a professional if you are planning cutting in place. It is also pretty hard that is another reason for receiving professional councils and creating a place in your budget for a professional installation. M R Conditional (Mixture) \u003d φ (AR) × M R (AR) + φ (O 2) × M R (O 2) + φ (HCl) × M R (HCl); M R Conditional (Mixture) \u003d 0.25 × 40 + 0.5 × 32 + 0.25 × 36.5 \u003d 10 + 16 + 9,125. M R Conditional (Mixture) \u003d 10 + 16 + 9,125 \u003d 35,125. We find the relative density of the mixture of nitrogen: D CH4 (Mixture) \u003d M R Conditional (Mixture) / M R (CH 4); D CH 4 (Mixture) \u003d 35.125 / 16 \u003d 2.2. |
| Answer | The methane density of the mixture consisting of argon, oxygen and chloride is 2.2. |