Chemistry

Chemistry, 26.06.2019 19:00, MileenaKitana

How many molecules are contained in a 3.36 mole sample of nh3?

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Chemistry, 28.08.2019 02:30, britann4256

Part 1 : a.) how many grams of hydrogen will be contained in a 100.000 g sample of magnesium hydroxide.? c.) how many grams of nitrogen will be contained in a 120.0 g sample of calcium cyanide? part 3: d.) how many grams of nickel will be contained in a 400. g sample of nickel (ii) iodide? f) how many grams of copper will be contained in a 165.0 g sample of copper (i) sulfide? g.) how many grams of sulfur will be contained in a 125.5 g sample of hexaphosphorus pentasulfide?

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Chemistry, 29.08.2019 21:30, nstacie40

If you are given the number of molecules in an unidentified chemical compound, can you calculate the number of moles in this sample? yes, because you know that each mole contains 6.02 x 1023 molecules yes, as long as you can also measure the mass of the sample no, because the number of moles depends on the volume of the sample no, because the number of moles depends on the identity of the substance

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Chemistry, 26.09.2019 19:00, kateykob01

Sulfur molecules exist under various conditions as s2, s, s4, s6, and s8. which of the following statements are true? a) the number of sulfur atoms in one mole of each of these molecules is the same. b) the mass of one mole of each of these would be the same. c) the mass of sulfur in one mole of each of the molecules is the same. d) the number of molecules in one mole of each would be the same.

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Chemistry, 28.09.2019 05:20, jaylabazemore

Hgc2h6 how many molecules are contained in a 5.10-g sample of dimethylmercury? what is the percentage of mercury (by mass) in the sample?

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