Amixture of propane and butane is burned with air. partial analysis of the stack gas produces the following dry-basis volume percentages: 0.0810% c3h8, 0.1140% c4h10, 1.049% co, and 9.905% co2. the stack gas is at an absolute pressure of 780.0 mm hg and the dew point of the gas is 50.71°c. calculate the molar composition of the fuel. (note: carry five significant figures throughout the calculation.)

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

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What are the first three quantum numbers for the electrons located in subshell 2s?