1-        what is moles?
91185
Moles are a collection of overactive pigment cells in the skin.  ...I think.  Some moles could be a sign of cancerous cells, but most aren't.
260937
If you have a family, why do you describe it with more than one number? The weight of the family, and the number of family members?\n\nThe number of moles is just the number of particles. The mass is the amount of material.
679263
I think that what is troubling you could be an exerecise involving "molarity" which uses two quantities: mass(moles)/volume(liter). \nBut you have to bear in mind that mass is referred to the solute, and volume refers to the solution. So, these quantities are not referring to ONE substance. \nIt would be better if you posted a question with the whole exercise, for clarity. \nGood luck.
128345
Moles are a part of nature. They carry no meaning. As you\nget older certain things on your body changes and somethings\nappears. Moles appear as well as skin blotches. These are\na sign of aging. Alot of people get them removed.
317796
A mole on your hands or hand signifies that your hand is beautiful!!! A mole anywhere signfies that!!!
952068
a) 0.01 mol\n\n1 mole of gas, at standard tremperature and pressure occupies 22.4 l.  You have exactly 1/100 of that, therefore 1/100 of a mole.
666341
A mole is a unit used to calculate the amount of atoms. One mole has 6.02*10^23 atoms in it.\n\nThe Ar is the Molar Mass of an Atom, a lab-determined weight used to calculate the number of moles.\n\nn = m/Ar, where n = Number of Moles, m = mass and Mr = Molar Mass of Atom.\n\nThe Mr is the Molar Mass of the Molecule, basically all the Ars added together. i.e. NaCl has an Ar of (23 [Na] + 35.45 [Cl]) = 58.45.\n\nUsually the mole formula is written as n = m/Mr as most problems will involve more than one atom ratio.
715558
OK, but you need to look up atomic weights or calculate molar mass.\n\n   Grams = Moles x molar mass  OR  moles x atomic mass\n\n    Moles = Grams/(molar mass) OR Grams/(atomic mass)
782235
Avagardro's Number = one mole, and all of the masses on the periodic table are in grams/mole.One mole of P equals 30.97g, so d. (c is the only other logical answer, but O2 has a molar mass of 32g/mole beacuse 1 oxygen has a molar mass of 16)\n\nGet used to moles, you'll see them all throughout chemistry.
384930
Formula mass is the mass of one mole of material molecule; while atomic mass is the mass of one mole of a single atom. e.g. the atomic mass of hydrogen (H) is 1, while its molecular mass is 2 since the molecule has two hydrogen atoms (H-H or H2)
906944
1 mole is 6.022×10^23\n\nso it is 7.9874 moles
541177
A mole is 6.23 x 10^23 of something.  That number is Avogadro's number.  So a mole of Helium atoms is 6.23 x 10^23.  The weight listed on the periodic table is also the weight of a mole of atoms of a pure element in grams.\n\nThey are used because it gives us a nice round number to work with.  Some reactions require 2 of one molecule and 3 of another for example.  Well, 2 molecules and 3 molecules are hard to work with.  So instead, we could use 2 and 3 moles of the compounds and do the reaction, without having to worry about the molecular weights as much or densities or other physical properties.  Hope that makes sense.
664728
One mole of *anything* = 6.023x10^23 units of that item.\n\nSo if you have 6.10x10^24 molecules of ethane, that's:\n\n6.10x10^24/6.023x10^23 = 10.13 moles.\n\nMultiply 10.13 moles by the molecular weight of ethane to get your answer.
1164554
Very Good Question.  Many people that is taking Chem or has taken Chem has misconception/confusion with this concept.\n\nThe world Mole comes from Latin, simply meaning "heaps" or "pile" of things.  Mole simply means that it is ALOT of things.  Exactly how many?  602,200,000,000,000,000,000,000 or 6.022x10^23.   \n\nFor example, a Dozen of donut is 12 donuts.  A Pair is two.  A mole of donuts are 602,200,000,000,000,000,000,000 donuts.  A mole signifies a quantity of something, not a mass of something.    \n\nPeople often mistake a Mole of something as its Molar Mass.  Molar mass is referring to how much something weighs, when you have a mole of it.  The molar mass of each element you see on periodic table are how much each element weighs in grams per mole.\n\nFor example, The molar mass of 1.0079g refers to mass 602,200,000,000,000,000,000,000 H atoms.  \n\nThat is the basic idea of Mole Concept.  I hope this helps.
623393
If the borders are well defined and the colour is solid and uniform then it is probably just a regular mole.  If you're unsure, you should always ask a professional opinion.
45705
Moles are carnivores - they mostly eat worms and almost anything else that falls into their tunnels. Their tunnels are like traps for centipedes, millipedes, beetles, insect larvae, etc.\nMoles don't often feed on the surface. They have been observed eating small vertebrates such as lizards.
881860
6.02 x 10^23 is the conversion for converting from moles to # of molecules or atoms.\n\nWhen you use the number 19, you are counting the number of atoms in a molecule, not the number of molecules in a mole.