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2.4088x10^24
9 moles (there are four oxygen atoms for every mol of BaSO4, so you multiply 2.25 by 4)
How many moles of atoms are contained in 382 g Co
Two oxygen atoms.
Lithium hydroxide has three atoms in it, one each of lithium, hydrogen, and oxygen. Also note that lithium is Li, not LI. Little details matter to chemists. A capital I means iodine.
5,26 moles of oxygen contain 31,676.10e23 atoms.
1.10x10^24
2.4088x10^24
a. number of atoms = mass / molar mass x avagadros number 21/16x6.02x1023=7.9x1023 atoms b. number of atoms = moles x avagadros number 0.812x6.02x1023=4.89x1023 atoms as there is 1 O atom in each molecule of MgO, there are 4.89x1023 atoms of Oxygen. c. if there are 3.2x1022 molecules and 6 oxygen atoms in each molecule then: (3.2x1022)x6=1.92x1023 Oxygen atoms.
9 moles (there are four oxygen atoms for every mol of BaSO4, so you multiply 2.25 by 4)
1
How many moles of atoms are contained in 382 g Co
Two oxygen atoms.
There are 2 Oxygen atoms in CaCO2
Four oxygen atoms.
To determine how many atoms are present in 56 liters of oxygen gas at STP you first need to know that there are two atoms in a single molecule. Then, you would work the scientific formula to determine the number of molecules in the oxygen gas.
There are 2 oxygen atoms in dioxide