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A mole (more properly called a "gram Atomic Mass") of K contains Avogadro's Number of atoms. Therefore, 0.0384 moles contains 0.0384 X Avogadro's Number or about 2.31 X 1022 atoms, to the justified number of significant digits.
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How many atoms are in 0.0671 mol K?
There are 4.05 x 10^22 atoms in 0.0671 mol of potassium (K). This is calculated by multiplying the Avogadro's number (6.022 x 10^23) by the number of moles.
How many moles are in 3.3 moles of K2S?
3.3 moles of K2S 3.3 moles of S-2 6.6 moles of K+1
What is the concentration of K in 0.15M of K2S?
If you have 2 moles of K+ for every mole of K2S and Molarity (M) is Moles per Liter. Then you know that you have .30 M of K2S. The way that you do that is setting up a series of conversion factors like so:(.15moles k2s/liter) x (2 moles of K/ 1 mole of K2S) = .30 moles k/ liter.The moles of K2S cancel out and you are left with moles of K per liter.
How many atoms are in 131.97 liters of water vapor at STP?
At STP (standard temperature and pressure), one mole of any gas occupies 22.4 liters. So 131.97 liters of water vapor is 131.97/22.4 = 5.89 moles. Since water has two hydrogen atoms and one oxygen atom per molecule, each mole of water contains 2 + 1 = 3 atoms. Therefore, 5.89 moles contain 5.89 x 3 = 17.67 moles of atoms.
How many moles of cations are in 1.30 mol of rmK 2 rmSO 4?
There are 2 moles of potassium cations (K+) in 1 mole of K2SO4, so in 1.30 moles of K2SO4 there would be 2.60 moles of potassium cations.
How many atoms are in 0.3 moles of potassium?
0.3 moles K (6.022 X 10^23/1mol K) = 1.8 X 10^23 atoms of K
How many potassium atoms are in 0.0384 mole K?
0.0384 moles K x 6.02x10^23 atoms/mole = 2.31x10^22 atoms
How many atoms are in 0.0671 mol K?
There are 4.05 x 10^22 atoms in 0.0671 mol of potassium (K). This is calculated by multiplying the Avogadro's number (6.022 x 10^23) by the number of moles.
How many atoms are in 3.50 moles of calcium?
There are 6.022 × 1023 atoms of potassium in every mole of potassium. Since one mole of KOH contains one mole of K, the answer is 6.022×1023 atoms of K. Therefore, 3.5 moles * 6.022E23 atoms/1 mole= 2.107E24
How many moles of atoms are contained in 6.81 x 1024K atoms?
There are 1 mole of atoms in 6.022 x 10^23 atoms (Avogadro's number). Therefore, to find the number of moles in 6.81 x 10^24 atoms, you would divide the given number of atoms by Avogadro's number: 6.81 x 10^24 atoms / 6.022 x 10^23 atoms/mole = 11.33 moles.
How many grams of potassium are there in 7.20 mol of potassium atoms?
7.20 moles K x 39.1 g/mole = 281.52 g K = 282 g K (to 3 significant figures)
How many atoms in 4KOH?
1 fomula unit of KOH has 3 atoms: 1 potassium (K), 1 oxygen (O), and 1 hydrogen (H).
How many atoms of K in 2.77g of KCl?
To find the number of K atoms in KCl, we first calculate the molar mass of KCl: 39.10 (K) + 35.45 (Cl) = 74.55 g/mol. Next, we determine the number of moles of KCl in 2.77g: 2.77g / 74.55 g/mol = 0.0371 mol. Since there is 1 K atom in 1 KCl molecule, the number of K atoms in 2.77g of KCl is the same as the number of moles of KCl, which is 0.0371 mol.
How do you find the mass of a sample of 1.72 x 1023 atoms of potassium?
To find the mass of the sample, you would first determine the molar mass of potassium (approximately 39.1 g/mol). Then, you would multiply the number of atoms by the molar mass to find the total mass. In this case, you would calculate (1.72 x 10^23 atoms) x (39.1 g/mol) = mass of the sample.
How many moles are in 3.3 moles of K2S?
3.3 moles of K2S 3.3 moles of S-2 6.6 moles of K+1
What is the concentration of K in 0.15M of K2S?
If you have 2 moles of K+ for every mole of K2S and Molarity (M) is Moles per Liter. Then you know that you have .30 M of K2S. The way that you do that is setting up a series of conversion factors like so:(.15moles k2s/liter) x (2 moles of K/ 1 mole of K2S) = .30 moles k/ liter.The moles of K2S cancel out and you are left with moles of K per liter.
How many atoms are in a sample of 1.83 moles of potassium (K) atoms?
Okay, a mole of potassium perchlorate contains 6.02x1023 formula units of potassium perchlorate, but you're asking about individual atoms. So, let's look at the formula: KClO3. That's 1 potassium, 1 chlorine, and 3 oxygens, for a total of 5 atoms per formula unit. Now, multiple 5 by Avogadro's number above, to get 30.1x1023, which simplifies to 3.01x1024 atoms.
