Tia has a sample of pure gold (Au). She weighed the sample and the result was 85.2 grams. Tia wants to determine the number of atoms in the sample. Calculate the number of atoms in 85.2 g of pure gold.

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Q: Tia has a sample of pure gold (Au). She weighed the sample and the result was 96.896.8 grams. Tia…

A: Formula used: Moles = Mass/ Molar Mass Number of atoms = Moles x Avagadro Number

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A: 1 mol Mn has mass equal to  59.94 g  1 mol Mn = 6.022 × 1023  atoms of Mn

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Q: Calculate the mass (in grams) of 4.69 x 1024 carbon atoms.

A: Given : 4.69 × 1024 carbon atoms.  We know 6.022 × 1023 atoms = mass of one mole

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Q: 1. What is the mass of 1.53x1024 atoms of helium? grams 2. How many helium atoms are there in 46.4…

A: Number of moles is the ratio of given mass of the substance to the molecular mass of the substance.

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Q: What would the mass be of Gold, if you had 6.02 x 10^24 atoms of

A: GOLD, molar mass of Au = 196.97 g/mol atoms of Au = 6.023 x 1023

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A: The number of moles can be calculated as- n=mMm=n×M where n: number of moles of the atom m: the mass…

Q: Tia has a sample of pure gold (Au). She weighed the sample and the result was 10.810.8 grams. Tia…

A: Number of atoms = number of moles x 6.0224 x 1023 Number of moles = Mass/molar mass

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Q: Tia has a sample of pure gold (Au). She weighed the sample and the result was 84.784.7 grams. Tia…

A: First of all calculate the number of moles of gold by using formula- mole = mass/molar mass then…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.