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what is the number of 2 mole O2?How many mole of
"相关结果约100,000,000个
How many atoms are in a mole of O2? Solution — 1 molecule of O2 = 2 oxygen atoms So, 1 mole of O2 = 2 mole oxygen atoms = 2 × 6.022 × 1023 = 12.044 ×1023 oxygen atoms. How many moles are in 100 grams? Answer and Explanation: There are approximately 5.55 moles of water in a 100-gram sample of water.
To find the mass percent of Oxygen in O 2, follow the steps given below: Determine the atomic weight of Oxygen i.e., 15.9994 g/mol. Find the mass of Oxygen (O) in O 2 by multiplying the atomic weight of an O-atom with the total number of O-atoms in O 2 i.e., 2. ∴ Mass of Oxygen in O 2 = 15.9994 x 2 = 31.9988 g/mol.
By applying mole concept, we can easily solve this problem.According to the concept, 1 mole contains 6.023 ×10^23 particles. So, 2moles of O2 contains 2× 6.023×10^23 molecule= 12.046 ×10^23 molecule . Now, 1 molecule of oxygen contains 2 atoms.
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, ** 1.2044 ×10²⁴ **oxygen atoms are there in a 2 moles of **oxygen **atoms. What is mole? The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance.
In chemistry, one mole of a substance contains Avogadro's number of entities (6.022 x 10^23).Given this, one mole of O2 contains two moles of oxygen atoms, as every O2 molecule consists of two oxygen atoms.. So, if we have 2 moles of O2, we would have 2 moles * 2 (because there are two oxygen atoms in each O2 molecule) * Avogadro's number of oxygen atoms.
To work it out, find the atomic or molecular mass of your substance and multiply it by the number of moles you have. For one mole, the atomic or molecular mass will be the same as the weight. How many atoms in a mole? There are 6.02214076×10 23 atoms in a mole. It is derived from the number of atoms in 12 g of the isotope carbon-12.
Given Information: We have 2 moles of oxygen. Calculation: Use Avogadro's number to find the total number of atoms in 2 moles. Multiply the number of moles (2) by Avogadro's number (6.022 × 1 0 23 atoms/mole). Perform the Multiplication: 2 moles × 6.022 × 1 0 23 atoms/mole = 1.2044 × 1 0 24 atoms. So, there are 1.2044 × 1 0 24 atoms in 2 ...
Answer: 6.02 × 1023. Explanation: One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms
Each mole of oxygen gas contains 2 oxygen atoms, so there are 0.195 moles of oxygen atoms in 3.120 grams. Finally, using Avogadro's number (6.022 x 10^23), we find that 1.17 x 10^23 oxygen atoms ...
Step 2. Calculate the number of oxygen atoms in 1 mole of O₂: 1 mole of O₂ = 2 moles of O atoms. Step 3. Multiply the number of moles of O₂ by the number of oxygen atoms per mole: 2 moles of O₂ × 2 = 4 moles of O atoms. Final Answer: The total number of oxygen atoms in 2 moles of oxygen gas is 4 × 6.022 × 1 0 23, which equals ...