If the temperature and pressure are the same one gram of hydrogen gas has about

# If the temperature and pressure are the same one gram

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16.If the temperature and pressure are the same, one gram of hydrogen gas has about the same numberof atoms asAtomic Molar MassesH 1.0 gmol-1N 14.0 gmol-1(a) 1 g of nitrogen gas.(b) 2 g of nitrogen gas.(c) 7 g of nitrogen gas.(d) 14 g of nitrogen gas.(e) 28 g of nitrogen gas.17.According to the Avogadro Principle, one litre of gaseous hydrogen and one litre of gaseousammonia contain the same number of
Last Revised by D Lougheed 00/7/3Page 3118.One litre of gaseous krypton is compared to one litre of gaseous neon, both at standardtemperature and pressure. Select the correct statement.19.Which temperature on the Celsius scale corresponds to 257 K on the Kelvin scale?20.When the following equation is balanced, what is the coefficient of oxygen, O2?2C4H10(g) + ? O2(g) ? CO2(g) + ? H2O(g)(a) 7(b) 9(c) 13(d) 15(e) 1821.Which one of the following procedures is the least hazardous?22.The correctly-matched names and formulas below are1- Sodium sulfiteX- Na2SO42- Sodium sulfateY- Na2S3- Sodium sulfideZ- Na2SO323.The analysis by mass of a pure white powder is:H 5.61%C 5.60%O 67.29%Na 21.50%Which formula is consistent with this analysis?Atomic Molar MassesH 1.01 g·mol-1C 10.8 g·mol-1O 16.0 g·mol-1Na 22.99 g·mol-124.If X represents any of the elements of the carbon family, then the general formula for the hydrogencompound of X is(a) XH5(b) X2H3(c) XH(d) XH2(e) XH4
Last Revised by D Lougheed 00/7/3Page 32

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