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To determine the number of molecules in 15.9 g of IF7 (iodine heptafluoride), first calculate the molar mass of IF7. The molar mass is approximately 144.9 g/mol. Next, use the formula: number of moles = mass (g) / molar mass (g/mol). Thus, ( \text{number of moles} = \frac{15.9 , \text{g}}{144.9 , \text{g/mol}} \approx 0.1096 , \text{mol} ). Finally, multiply the number of moles by Avogadro's number (approximately (6.022 \times 10^{23}) molecules/mol) to find the number of molecules: (0.1096 , \text{mol} \times 6.022 \times 10^{23} \approx 6.60 \times 10^{22}) molecules of IF7.
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What is the number of molecules in 9.0 g of steam and how?
To find the number of molecules in 9.0 g of steam (water vapor), first determine the number of moles. The molar mass of water (H₂O) is approximately 18.02 g/mol. Therefore, 9.0 g of steam is equivalent to ( \frac{9.0 \text{ g}}{18.02 \text{ g/mol}} \approx 0.5 ) moles. Since one mole contains Avogadro's number of molecules ((6.022 \times 10^{23}) molecules/mol), the total number of molecules is (0.5 \text{ moles} \times 6.022 \times 10^{23} \text{ molecules/mole} \approx 3.01 \times 10^{23} ) molecules.
How many grams are in 8.2 x 1022 molecules f N2l6?
To find the mass in grams of 8.2 x 10^22 molecules of N2l6, we first need to determine the molar mass of N2l6. The molar mass is calculated by adding the atomic masses of nitrogen (N) and iodine (l) in the formula. N has an atomic mass of approximately 14 g/mol and I has about 127 g/mol; thus, N2l6 has a molar mass of (2 * 14) + (6 * 127) = 868 g/mol. Next, we convert the number of molecules to moles using Avogadro's number (6.022 x 10^23 molecules/mol): 8.2 x 10^22 molecules * (1 mol / 6.022 x 10^23 molecules) ≈ 0.136 moles. Finally, we multiply the number of moles by the molar mass: 0.136 moles * 868 g/mol ≈ 118.5 grams. Therefore, there are approximately 118.5 grams of N2l6 in 8.2 x 10^22 molecules.
How many g are in 1.47kg?
1470 g
How many g for 2kg?
2000 g
How many g are in 258kg?
258,000 g
How many molecules are there in 22.0 g of silver chloride?
22.0 g of silver chloride contain 0,918.10e23 molecules.
How many molecules are in 26.3 g of calcium hydroxide?
26.3 g of calcium hydroxide contain 2,054 molecules.
How many molecules are in 32 g of SO2?
32 g SO2 x 1 mole SO2/96 g x 6.02x10^23 molecules/mole = 2.0x10^23 molecules
How many moles of mercury are there in 159 g of mercury?
620 grams mercury (1 mole Hg/200.6 grams) = 3.09 moles Hg
How many molecules (not moles) of NH3 are produced from 1.57104 g of H2?
The answer is 1,57.10e27 molecules.
How many O2 molecules are needed to react with 7.45 g of S?
1,4.10e23 molecules
How many molecules will there be in 1.0 g of ATP?
2
How many molecules of H2O are there in 1.0 g of H2O?
There are 3.34 x 10^22 molecules of H2O in 1.0 g of water.
How many molecules are present in 0.340g of HCl?
0,34 g HCl contain 5,6.10e21 molecules.
How many molecules are contained in a 5.20 g sample of dimethylmercury?
The answer is 1,357.10 ex.23 molecules.
How many molecules of ozone are ther in 155.25 g ozone?
There are around 19.4*1023 molecules in 155.25 g of ozone. Its molecular weight is 48.
How many molecules of S8 would be necessary to obtain 1.000 g of S?
(6.022*10^23) * [1.000 (g) / (8 * 32.00 (g/mol)] = 2.352*10^21 molecules
