. We can determine the molar mass of air by considering Nitrogen (N2), Oxygen (O2) and Argon (Ar) make up 78%, 21% and 1% of the atmosphere, respectively. The molar masses of nitrogen, oxygen and argon are 14, 16, 40 g/mole. Compute the molar mass of air [(γmolar mass)γ_air=0.78γ(molar mass)γ_(N_2 )+0.21γ(molar mass)γ_(O_2 )+0.01γ(molar mass)γ_Ar] Remember that you have 2 atoms in N2 and O2. (5 points)
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Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
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When a scientific theory has been tested and proved by the scientific community, it becomes a law
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The vapor pressure of ethanol is 1.00 Γ 102 mmhg at 34.90Β°c. what is its vapor pressure at 61.61Β°c? (Ξ΄hvap for ethanol is 39.3 kj/mol.)
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Chemistry, 23.06.2019 07:10
1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency
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. We can determine the molar mass of air by considering Nitrogen (N2), Oxygen (O2) and Argon (Ar) ma...
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