How do you find the density of an element? What formula is used?
http://en.wikipedia.org/wiki/Density#Measurement_of_density according to that, the forumula is different depending on the physical state.
How to find the density?
A student used a balance and a graduated cylinder to collect the following data. Sample mass 10.23 g Volume of water 20.0 mL Volume of water and sample 21.5 mL (a) Calculate the density of the element. 6.8 g/mL Show your work. Include the appropriate number of significant figures and proper units. (Do this on paper. Your instructor may ask you to turn in this work.) (b) If the accepted value is 6.93 grams per milliliter, calculate the percent error. % (c) What error is introduced if the volume of the sample is determined first?
What element has the lowest density?
Hydrogen, 0.09
Which element has the most density?
Density is mass per unit volume. It can be measured experimentally or predicted based on properties of matter and how it behaves under certain conditions.As it turns out, either of two elements can be considered the element with the highest density: osmium or iridium.Both osmium and iridium are very dense metals, each weighing approximately twice as much as lead.At room temperature and pressure, the calculated density of osmium is 22.61 g/cm3 and the calculated density of iridium is 22.65 g/cm3.However, the experimentally measured value (using x-ray crystallography) for osmium is 22.59 g/cm3, while that of iridium is only 22.56 g/cm3. Normally, osmium is the most dense element.However, the density of the element depends on many factors. These include the allotrope (form) of the element, the pressure, and the temperature, so there isn't a single value for density.For example, hydrogen gas on earth has a very low density, yet that same element in the Sun has a density surpassing that of either osmium or iridium on Earth.If both osmium and iridium density are measured under ordinary conditions, osmium takes the prize.At room temperature and a pressure above 2.98 GPa, iridium is more dense than osmium, with a density of 22.75 grams per cubic centimeter.see : Johnson Matthey, "Is Osmium Always the Densest Metal?" Technol. Rev.
How can you predict the density of an element?
Calcium is the alkaline earth metal in period 4, barium is the alkaline earth metal in period 6. Since strontium is the alkaline earth metal in period 5, you would expect its density to be somewhere between the other two, probably a little closer to barium than calcium because the increase in atomic radius is less from the fifth period to the sixth than from the fourth to the fifth. The actually value for strontium, not surprisingly, is 2.64.
Calculate the density of the element.?
number atoms per cell = 4 mass = 4 x 107.868 / 6.022 x 10^23 = 7.16 x 10^-22 g 6.82 x 10^-26 L = 6.82 x 10^-23 mL d = 7.16 x 10^-22 g / 6.82 x 10^-23 mL = 10.5 g/mL
How do we calculate the density of an element?
You can find out the atomic mass ( in grams ) of that element. That is equal to the mass of one mole of atoms of that element. Then you can take the volume of one mole of that element to be 22.4 litres or dm3 at STP. Then you can use the formula for density and you get the required answer.Hence,Density of an element = ( atomic mass of the element in grams )/ ( 22.4L at STP ).
Which element has the highest density?
Hassium is the densest element in the periodic table, its density being 40700 kg/m3. However, it is highly unstable, with the half-life of its most stable isotope being only around 1 hour.It is followed by:2.Meitnerium at 37400 kg/m33.Seaborgium at 35000 kg/m34.Darmstadtium at 34800 kg/m35.Dubnium at 29300 kg/m36.Roentgenium at 28700 kg/m37.Copernicium at 23700 kg/m3and 8.Osmium at 22600 kg/m3 - the densest stable element
How do you determine the molar mass of an element given density and edge length?
number atoms per cell = 2 614 pm = 6.14 x 10^-8 cm volume cell = (6.14 x 10^-8)^3 =2.31 x 10^-22 cm ^3 mass = 1.91 g/cm^3 x 2.31 x 10^-22 cm^3=4.42 x 10^-22 g 4.42 x 10^-22 = molar mass x 2 / 6.02 x 10^23 molar mass = 133 g/mol the element is Cs
Is the density of the nucleus of an atom of all the elements the same?
My guess is that there are changes based on packing densities of the particles. Let’s assume that every proton and neutron created has equal mass and volume. We can only guess that this is true and that they are not compressible under the nuclear forces (and perhaps gravity). We then have to ask what we mean by the volume of the nucleus. If we look at a Hydrogen atom, with only one proton (and no neutrons) the nucleus is likely a sphere (as we perceive it). But if we add a neutron, we now have two spheres sitting next to each other. Is the volume now the sphere capable of encompassing both the neutron and the proton, or is it just the sum of the separate particles. If it’s the former, then the density of the nucleus will be much lower. The mass doubles with the addition of the neutron (slightly more as neutrons are heavier than protons but they are very close), but the “size” of the nucleus will increase by much more. This effect is much stronger for small atoms, by the time you get to the heavy elements like gold the packing efficiency starts to level out.