What mass of ch4 is consumed when 587. 9 kj of energy is evolved from the combustion of a mixture of ch4(g) and o2(g)? show the

Question

Zolol [24]

1 year ago

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What mass of ch4 is consumed when 587. 9 kj of energy is evolved from the combustion of a mixture of ch4(g) and o2(g)? show the

set up and answer with unit. ch4 molar mass = 16. 05 g/mol

Chemistry

1 answer:

katen-ka-za [31] · Answer 1 · 2024-06-16T03:29:32+03:00

Mass of CH₄ is 10.591 g.

The molar mass is a crucial characteristic of the material that is independent of sample size. The coherent unit of molar mass in the International System of Units (SI) is kg/mol. However, molar masses are usually generally given in g/mol due to historical considerations.

A chemical compound's molar mass is calculated by dividing its mass by the number of moles of the substance that make up the sample.

Δg = 587.9 KJ

CH₄ Molar mass = 16.05 g/mol

mol CH₄ = Δg / ΔH°

= 587.9 / 890.3 KJ/ mol

= 0.6603 mol CH₄

Mass CH₄ = 0.6603 × 16.05 g/mol

= 10.591 g

Therefore, the mass of CH₄ is 10.591 g.

Learn more about molar mass here:

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