An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume 100.0 g of the compound, what is the mass in grams of osmium that are present in the compound? b. How many moles of osmium are present in 100.0 g of the compound? c. If you assume 100.0 g of the compound, what is the mass in grams of chlorine that are present in the compound?

Q: Complete the table. Number of Particles (atoms Substance Mass Moles or molecules) Ar 4.5 x 10-4 NO2…

A: Ar : Mass of Ar = moles x molar mass                   = 4.5 x 10-4 x 40                   = 1.80 x…

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Q: Pp

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Q: You wish to prepare 217 grams of 19.7 % MnCl2. You will need_________________  grams of…

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Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

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Q: If we wanted to produce 0.95 mol of carbon dioxide gas (CO2), how many moles of oxygen (O2) gas…

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A: n=mM Number of moles of carbon dioxide will be: nCO2 = 12.24 g18 g/mol=0.278 mol Similarly, number…

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A: Given data,  Mass of nitrous oxide = 2.37 g  Contains 3.24 × 1022 N2O molecules

Q: When the substance shown below burns in oxygen, the products are carbon dioxide and water. How many…

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Q: 0.8710 Mass of water, (g) e-8712 x 1.8979 9.9587 11.0850 35. TEMPERATURE Half mass Half ma: Set 1…

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Q: Write the chemical formula for each compound, and then calculate the amount in moles in each sample.…

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Q: 9. How many sodium ions are contained in 1.64 g of Na3PO4? The molar mass of Na₂SO3 is 163.94 g/mol.…

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Q: a. How many grams of C are present in 3.56 grams of carbon tetrafluoride? Mass = g C b. How many…

A: Mole is defined as mass of substance divide by it's molar mass

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Q: A mixture of 197.1 g of P and 203.6 g of O, reacts completely to form PO, and P010: Find the masses…

A: Mass of O2 = 203.6 g * moles of O2 = Mass of O2 / Molar mass of O2 = 203.6 g / 32 (g/mol) = 6.36…

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Q: An unknown compound contains 53.34% rhodium, 9.338% carbon, and the rest is oxygen. a) If you assume…

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Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

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Q: A researcher exposes 11.89 g of pure iron to a stream of oxygen gas until it reacts to produce16.99…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.