In a steel container of 20.00 L, we have 55.5 g of N₂2(g) (M=28.02 g/mol), 77.7 g of O₂(g) (M=32.00 g/mol), and 66.6 g of an unknown gas. The temperature is 25.0°C and the total pressure is 6.666 atm. What is the molar mass of the unknown gas? What are the average speeds (or root mean square speeds) of the N2(g) molecules and of the O₂(g) molecules? N.B. that R0.082056 L atm/mol K 8.3145 J/mol K. =

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A: 1 ppm(parts per million) is equal to 1 mg per litre 1 ppm = 1 mgL

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A: Detail

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A:

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Q: 9. 8. 3 на фон CH 3 двое OH CH₂ H3C CI + 60₂ CH HẠCH3 CH₂ CH3

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Q: Question 3 3.1 Convert each Haworth projection below to its acyclic form CH2OH 3.2 a) ОН -І Н Н Н ОН…

A: Haworth projection can be converted in open chain structure:

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Q: Explain the following difference in pKa values for these compounds: pka 30.2 Ph Ph pka 26.7

A:

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A: Reaction:- 2A + 3B ------> 2C Mole of A = 3.43 mol Mole of B = 4.29 mol Energy released= 2345 KJ

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Q: 104. Subject  :- Chemistry

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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.