WebSep 8, 2004 · 1,916. GingerBread27 said: I have to approximately figure out, to the nearest order of magnitude, how many moles of atoms there are in a 12 kg cat.You are also told that The masses of a hydrogen atom, an oxygen atom, and a carbon atom are 1.0 u, 16 u, and 12 u. . all i know is that 1 u=1.66 x 10^-27 kg. From here I am unsure where to go. WebThese are the conversion factors that we are going to need: The first one allows converting the number of atoms to moles, and the second is converting the moles to mass. 7.58x1024Featoms × 1molFe 6.03 × 1023Featoms × 55.8 gFe 1mol Fe = 703g.
Chapter 1.7: The Mole and Molar Mass - Chemistry LibreTexts
WebSep 3, 2024 · By looking at a periodic table, we can conclude that the molar mass of the element lithium is 6.94g, the molar mass of zinc is 65.38g, and the molar mass of gold is 196.97g. Each of these quantities contains 6.022 × 10 23 atoms of that particular element. WebJul 25, 2024 · Each gram of chlorophyll contains 0.0268 g of Mg, atomic weight 24.3. Number of moles in this weight of Mg: (.0268 g) / (24.2 g mol –1) = 0.00110 mol Number of atoms: (0.00110 mol) × (6.02E23 mol –1) = 6.64 × 10 20 Is this answer reasonable? (Always be suspicious of huge-number answers!) simple purposeful living website
Solved How many Sn atoms are there in a 80.4 gram sample of
WebSep 9, 2012 · Therefore a gram ato is 40.078 grams which contains 6.02214129 (27)×1023 atoms. 1g of calcium contains 6.02214129 (27)×1023 / 40.078 1.502 X 1022 Wiki User ∙ 2012-09-09 17:32:31 This answer... WebApr 7, 2024 · What does 1 gram atom mean? Hint: One gram atom means the mass of one mole of an element equal in grams to the atomic weight. One gram atom of oxygen is defined as the atoms present in one gram of oxygen atom. How many atoms of calcium are present in 40.1 g of calcium? You find the molar mass of calcium metal, it is listed as … WebJun 25, 2024 · One atomic mass unit is equal to one gram per mole. When you add these together for a compound, you get the molar mass of that compound. For example, silicon dioxide consists of one silicon atom and two oxygen atoms. The atomic mass of silicon is 28 grams and the atomic mass of oxygen is 16 grams. simple push pull toys for kids to make