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How many moles are in 5.39g of aluminum?
To find the number of moles in 5.39g of aluminum, we need to use the molar mass of aluminum, which is approximately 26.98 g/mol. Divide the given mass by the molar mass to get the number of moles: 5.39g / 26.98 g/mol ≈ 0.1994 moles of aluminum.
How many moles are 3.58 x 1024 atoms of pure uranium 5.95 mole U?
3.58 X 1024 atoms of uranium (1 mole U/6.022 X 1023) = 5.94 moles uranium to be precise and with significant figures -------------------------------------------------------------------------------
If a sample of pure silver (Ag) contains 3.35 x 1022 atoms of silver how many moles of silver are in the sample?
To find the number of moles of silver, you can use Avogadro's number, which is approximately (6.022 \times 10^{23}) atoms/mole. The number of moles can be calculated using the formula: [ \text{moles} = \frac{\text{number of atoms}}{\text{Avogadro's number}} = \frac{3.35 \times 10^{22}}{6.022 \times 10^{23}} \approx 0.0556 \text{ moles}. ] Thus, the sample contains approximately 0.0556 moles of silver.
How many moles of tin atoms are in a pure tin cup mass of g?
To calculate the number of moles of tin atoms in a pure tin cup, you can use the formula: [ \text{moles of tin} = \frac{\text{mass of tin (g)}}{\text{molar mass of tin (g/mol)}} ] The molar mass of tin is approximately 118.71 g/mol. Simply divide the mass of your tin cup by this value to find the number of moles.
What is the volume occupied by 2.12 moles of NO?
The volume occupied by 2.12 moles of nitrous oxide is 9.35. A mole is described in chemistry as an amount of pure substance containing the same number of chemical units as there are atoms.
How many moles are in 5.39g of aluminum?
To find the number of moles in 5.39g of aluminum, we need to use the molar mass of aluminum, which is approximately 26.98 g/mol. Divide the given mass by the molar mass to get the number of moles: 5.39g / 26.98 g/mol ≈ 0.1994 moles of aluminum.
What is the number of atoms in 1.88 moles of Zn?
To find the number of atoms in 1.88 moles of Zn, you would multiply the number of moles by Avogadro's number, which is 6.022 x 10^23 atoms/mol. Therefore, there are approximately 1.13 x 10^24 atoms in 1.88 moles of Zn.
How many copper atoms are in a pure copper statue with a mass of 148kg?
To find the number of copper atoms in the statue, you need to first determine the number of moles of copper using its molar mass. Then, you can multiply the number of moles by Avogadro's number to find the number of atoms. Given that the molar mass of copper is approximately 63.55 g/mol, you can follow these steps to calculate the number of copper atoms in the statue.
How many moles are 3.58 x 1024 atoms of pure uranium 5.95 mole U?
3.58 X 1024 atoms of uranium (1 mole U/6.022 X 1023) = 5.94 moles uranium to be precise and with significant figures -------------------------------------------------------------------------------
If a sample of pure silver (Ag) contains 3.35 x 1022 atoms of silver how many moles of silver are in the sample?
To find the number of moles of silver, you can use Avogadro's number, which is approximately (6.022 \times 10^{23}) atoms/mole. The number of moles can be calculated using the formula: [ \text{moles} = \frac{\text{number of atoms}}{\text{Avogadro's number}} = \frac{3.35 \times 10^{22}}{6.022 \times 10^{23}} \approx 0.0556 \text{ moles}. ] Thus, the sample contains approximately 0.0556 moles of silver.
How many moles of tin atoms are in a pure tin cup with a mass of 41.7 g?
41.7 grams tin (1 mole Sn/118.7 grams)(6.022 X 10^23/1 mole tin )(1 mole tin atoms/6.022 X 10^23) = 0.351 moles of tin atoms in pure tin cup ------------------------------------------------------
What is the volume occupied by 2.12 moles of NO?
The volume occupied by 2.12 moles of nitrous oxide is 9.35. A mole is described in chemistry as an amount of pure substance containing the same number of chemical units as there are atoms.
How many moles of Al are in 50g of it?
The atomic mass of Al is 27.0 Amount of Al in a 50g pure sample = 50/27.0 = 1.85mol
What is a pure substance - all the atoms have the same atomic number or number of protons?
A pure substance in which all the atoms have the same atomic number or number of protons is an element.
Is aluminum oxide a mixture?
No, aluminum oxide is a compound composed of aluminum and oxygen atoms bonded together in a fixed ratio. It is a chemical compound, not a mixture.
How many moles of aluminum hydroxide is 39.0g?
Aluminium hydroxide, Al(OH)3 has molar mass 27.0+3(17.0) = 78.0Amount of Al(OH)3 = 39.0/78.0 = 0.500molThere are 0.5 moles of aluminium hydroxide in a 39.0g pure sample.
Is aluminum an atom or molecule?
Aluminum is an element, which means it consists of atoms. Each atom of aluminum has its own unique properties and characteristics. It is not a molecule because a molecule is formed when atoms are chemically bonded together, which is not the case for aluminum in its pure form.
