How much is amber worth?
That is difficult to answer concisely as the quality can go from one end of the spectrum to the other. And amber that contains insects, fossils or pieces of dinosaur bone can be worth thousands. There is a room made of entirely of amber in a Moscow museum that was once in a Tsar’s palace. The grade of amber used and the size of the pieces makes it priceless.
Density of a gas at STP?
you could do this.. start with these 2 equations PV = nRT n = mass / mw substitute and rearrange PV = (mass / mw) RT (mass / V) = mw x P/(RT) and since density = mass / V... density = mw x P/(RT) and you know R = 0.08206 Latm/molK, and you know P = 1 atm and T = 273.15K.. (STP right?) plug in the molar masses and solve ********* or.. if you recall.. PV = nRT V/n @STP = RT/P = 0.08206 Latm/molK x 273.15 / atm = 22.41 L/mol sound familiar? V/n = 22.41 L/mol at STP? anyway.. (__ g / mol) x (1 mol / 22.41L) = __ g/L.... see the units cancel? so just plug in the molar mass / 22.41 to get density in g/L
How is amber found?
Well, the most interesting part here is that in a different regions/deposits amber extraction is done differently.If you want to know how to find amber yourself, you can check Quora answers to this question here: Where can we find amber?If you want to know about the whole process you can check this post:Amber Mining and Extraction - NammuBut briefly, the main productive layer, in which amber is abundant, is the so-called “blue ground” or “blue earth”. This layer got its name due to the high contents of glauconite mineral, giving it a bluish-green hue, which, in general, is not very obvious due to the prevalence of dark gray earthy tones.The layer of “blue ground” with a thickness of 2 to 12 meters lies at a depth of 43-50 meters. On the seabed, it is exposed and is destroyed during storms. Part of the amber contained in it is emitted by waves to the shore, another part is redeposited in a different place along seabed. Where amber is waved on a shore, than you can pick it up by on a beach after stormy weather. Again. Check the answers on Quora for this question to learn more about it: Where can we find amber?When we are talking about amber land deposits and extraction process, it must b e said that nowadays amber extraction is carried on in the open-cast mines, being a composite, highly-mechanized production.Originally the over-burden layers are exploited by excavator, and transported in the slag-heap by rails.Than, the blue earth, which is being washed out by the water from the ground, is going to the amber factory through the grate with meshes 5 cm in diameter, where the workers are picking out the biggest pieces of the mineral.The material, which has remained, is passed through the system of arc sieves, where it goes through its initial washing and dehydrating. Then, in the separator, this mass is exfoliated in a special solution of a density lower than amber; the heavy fractions are accumulating at the bottom, and the small amber as well as pieces of wood emerge at the surface.All extracted raw amber falls into the following categories: amber for jewelry production and amber for industrial purposes. Industrial amber is usually of fine fraction, black and of no interest to goldsmiths. It is used for producing high quality varnish and as well as musical instruments and car varnish of premium class.I hope this helps :)
What is the density of Motts apple juice?
Get a graduated cylinder, it doesn't matter how large, and a balance. Get the mass of the empty graduate. Fill it with, say, 10 cm^3 of apple juice. Get the mass. Subtract the mass of the graduate with apple juice from the mass of the empty graduate to get the mass of the apple juice. Divide that by the volume and Bob's your Uncle. I'd hazard a guess that it's pretty close to the density of water.
How is volume and density related
Thanks for asking……The relationship between the Volume and Density are as follows…….(1). Volume= It is the mass multiplied by the density.(2). Density= It is the mass divided by the volume.
Density-independent or density-dependent?
Scenario: Some ocean birds, such as gannets, breed on remote, rocky islands. They are safe from predators there. Many gannets flock to these islands each year to build nests. Because the islands are small, only a certain number of birds can nest and reproduce. Factor: Was the island size a density-independent or density-dependent limiting factor? Don't forget to explain your answer. Your explanation should be three to four sentences in length. Proofread your answer for conventions, word choice, and sentence fluency errors.
Does all amber float?
The specific gravity (density) of amber is on average 1.08, so it is actually a little heavier than pure water (density of 1.00). Seawater is slightly heavier than pure water because of the minerals which brings the densities of seawater and amber closer together but amber doesn’t always float. In colder oceans, such as the Baltic, seawater is somewhat denser allowing amber to float much of the time. In warmer climates, such as the Caribbean, amber has a harder time floating because the warmer water is less dense. Amber’s density can vary considerably depending on air bubbles trapped inside (making it lighter) or other trapped matter which can cause it to sink.