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How many atoms are in Carbon?

A single atom of carbon contains 6 protons and 6 neutrons in its nucleus, surrounded by 6 electrons. Therefore, there are 6 atoms in a carbon molecule.


Convert 6.55 times 10 to the 24th power atoms of carbon to moles of carbon?

6.55 * 1024 atoms = ? moles of carbonTake the number of atoms and divide it by Avogrodos constant (6.02 * 1023). Note that if you are looking to have your units cancel, multiply the number of atoms times 1 mole and divided by atomic mass. But if you know why it is just multiplied by one, there is no reason to put it in the formula.6.55 * 1024 atoms / (6.02 * 1023) = 10.9 molescarbon


How many moles of CaCl2 does 2.41 x 10 to the 24th formula units represent?

To find the number of moles of CaCl2, first calculate the molar mass of CaCl2: Ca: 40.08 g/mol Cl: 35.45 g/mol (x2 since there are two Cl atoms) Total molar mass: 40.08 + 35.45(2) = 110.98 g/mol Next, calculate the number of moles: 2.41 x 10^24 formula units / Avogadro's number (6.022 x 10^23) = 4 moles of CaCl2.


How many moles is 2.80 x 10 to the 24th atoms of silicon?

To convert atoms to moles, you divide the number of atoms by Avogadro's number (6.022 x 10^23). So, 2.80 x 10^24 atoms of silicon would be 4.65 moles.


How many moles of atoms in 4.2 times 10 to the 24th Pb atoms?

Your exponent is missing. To convert number of ___ (electrons, protons, atoms, molecules, etc) to moles of that substance, you must divide the number of ____ by Avogadro's constant (or Avogadro's number, commonly abbreviated to N_A (_A meaning the A is a subscript). Wikipedia lists the number as 6.02214179(30) e23 (e23 is a shortform of scientific notation, where the e refers to "times ten to the power of"). The brackets at the end of the decimal are the area of uncertainty. Since Avogadro's constant is defined as the number of carbon atoms in exactly 12 grams of the carbon-12 isotope, we cannot affix a specific number - there is no way (as far as I know) of counting individual atoms, accurately measuring mass to the point where a 1 atom difference is detectable, or ensuring the sample being weighed is nothing but carbon-12. Most chemistry classes in high school and undergraduate university/college classes will accept 6.022e23 as an acceptable approximation; add more decimals as required - if you're doing original research you should probably include the number specified in a more reliable source than wikipedia.