Explain what is the percentage by mass of ch4 in the mixture

Reference no: EM13253701

When a 8.37-g mixture of methane, CH4, and ethane, C2H6, is burned in oxygen at constant pressure, 445.8 kJ of heat is liberated. What is the percentage by mass of CH4 in the mixture? The standard enthalpies of combustion for CH4 and C2H6 are -890.3 kJ mol-1 and -1569.7 kJ mol-1, respectively.

Use atomic masses accurate to four significant digits in your calculations.
Enter your answer with 2 significant digits.
Enter only numbers in your answer.

Reference no: EM13253701

Questions Cloud

Explain what is the percentage by mass of ch4 in the mixture : What is the percentage by mass of CH4 in the mixture. The standard enthalpies of combustion for CH4 and C2H6 are -890.3 kJ mol-1 and -1569.7 kJ mol-1, respectively.

Explain the standard enthalpy change for the reaction : The standard enthalpy change for the reaction below is -905.4 kJ (for the reaction as written). What is the standard enthalpy of formation of NO(g)

Find the peak emf in the coil : A generator has a 170-turn square coil, 4cm on a side. Find the peak emf in this coil when it's rotating at 95.0Hz in a strong 6.1T field

Research terminology and design : Dynamic, continuous interaction between researchers and practitioners is required to advance evidence-based practice - Research Terminology and Design

Find the rms value of the magnetic field : The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1450 W/m2. Find the rms value of the magnetic field.

What are combustor inlet temperatur and turbine exhaust temp : A regenerative gas turbine has compressor and turbine discharge temperatures of 350K and 700K respectively. Draw and label schematic and T-S diagrams showing the relevant states.

What are the prices of pa and pb that maximize profits : A monopolist sells Product A and Product B. A unit of Product A costs 5 dollars to procure while a unit for Product B costs 10 dollars to procure.

User Account

All Pages