What mass of natural gas (CH4) must you burn to emit 264 kJ of heat?

1 answer:

7 0

The heat released by cpmolete the combustion of organic products with oxygen is called heat of combustion.

Here 1 mol of CH4 realesed 802.3 KJ

To emit 264 kJ you multiply you need (1 mol of CH4/802.3 kJ)* 264 kJ = 0.329 mol of CH4

The molar mass, MM, of CH4 is 12 g/mol + 4*1g/mol = 16 g/mol

The to obtain the mass multiply the number of moles times the molar mass:

mass = n * MM = 0.329mol * 16g/mol = 5.26 grams

Answer: 5.26 grams

You might be interested in

Which describes any compound that has at least one element from group 17?

Contact [7]

The answer is HALIDE.

6 0

3 years ago

1. What is the oxidation number for the silver ion in tarnish?

spayn [35]

Tarnish is Ag2S-silver sulfide and the oxidation state of silver is +1

7 0

2 years ago

Select the correct answer. Which statement is true of a chemical change? A. It involves changes in the molecular structure. B. I

wolverine [178]

I think the answer is something within..

4 0

2 years ago

Read 2 more answers

Science plz help due soon 6th grade Major grade

pentagon [3]

Answer:

the answer is d.

Explanation:

because the core is deepest then is the mantle and the lithpsphere is last .

I put a picture incase you need a visual example.

5 0

2 years ago

238,2U --> 234Th +<br> 90

stiv31 [10]

Answer:

$\\_{2}^{4} \alpha$

Explanation:

In this question, we wish to find the missing nuclei for the equation:

$\\_{92}^{238} U\rightarrow _{90}^{234} Th + _{Z}^{A} X$

In order to find the missing species, we need to use the charge and mass balance law. That is, the mass should be conserved: the total mass on the left-hand side with respect to the arrow should be equal to the total mass on the right-hand side with respect to the arrow:

$238 = 234 + A$