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Inessa05 [86]
3 years ago
9

During combustion, methane yields carbon dioxide and water. The unbalanced equation for this reaction is:CH4(g)+O2(g) → CO2(g)+

H2O(l)
What will the mole ratios for the balanced equation be? What coefficients are needed in order to balance the equation?
Chemistry
1 answer:
almond37 [142]2 years ago
4 0

Answer:

CH₄(g)  +  2O₂(g) → CO₂(g)  +  2H₂O(l)

Mole ratios for the balanced equation be:

1:2, 2:1, 1:1, 1:2, 2:2

Explanation:

CH4(g)+O2(g) → CO2(g)+ H2O(l)

To balance a chemical equation, you must have the same mole of each element in both sides of the reaction (reactant side and product side)

CH₄(g)  +  2O₂(g) → CO₂(g)  +  2H₂O(l)

2 C

8 H

8 O

In  both side.

It takes 1 mole of methane to react with 2 mole of oxygen in order to produce 1 mol of dioxide and 2 mole of water.

Mole ratios for the balanced equation be:

Mole ratios for the balanced equation be:

1:2, 2:1, 1:1, 1:2, 2:2  - We should compare each compound

1 mol methane → 2 mole of oxygen

2 mole of oxygen → 1 mol of methane

2 mole of oxygen → 1 mol of dioxide

1 mole of dioxide → 1 mol of Methane

2 mole of water → 2 mole of oxygen (the same as opposite)

1 mol methane →  2 mole of water

2 mol of water → 1 mol of methane

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Answer:

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8 0
3 years ago
Magnesium, on the left of Periodic Table, is more metallic than chlorine on the right of this Period. Why is this? - Because Mag
Marat540 [252]
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7 0
2 years ago
Many home barbeques are fueled with propane gas (C3H8)(C3H8). Part A What mass of carbon dioxide is produced upon the complete c
Andrew [12]

Answer:

41264 g of CO₂

Explanation:

Combustion reaction is:

C₃H₈ + 5O₂ →  3CO₂  +  4H₂O

1 mol of propane react to 5 moles of oxygen in order to proudce 3 moles of carbon dioxide and 4 moles of water.

In a combustion reaction, our reactant reacts to oxygen and the products are always CO₂ and water.

We have the volume of propane but we need moles of it, so we need to apply density.

Density = mass / volume so mass = density . volume.

Density of propane is: 493 g/L

Mass of propane is 493 g/L . 27.9L = 13754.7 g

We convert mass to moles: 13754.7 g . 1 mol/ 44g = 312.6 moles

According to reaction, 1 mol of propane can produce 3 moles of CO₂

Our 312.6 moles will produce 312.6 . 3 = 937.8 moles

We convert moles to mass: 937.8 mol . 44 g/mol = 41264 g

3 0
2 years ago
Molecular mass of potassium hydrogen carbonate (KHCO3)
adelina 88 [10]

Answer:

100gmol⁻¹

Explanation:

Problem: To calculate the molecular mass of

KHCO₃

Solution

The molar mass of a substance is defined as the number of grams per mole of that substance.

To determine the molar mass of this compound we find:

> the component atomic masses

>we express it in gmol⁻¹

From the periodic table, the atomic masses of the elements in the given compound are:

K = 39g

H = 1g

C = 12g

O = 16g

Now let's add these numbers together:

KHCO₃ = [39 + 1 + 12 + (16x3)]

= 39 +13 +48

= 100g

Molar mass of KHCO₃ = 100gmol⁻¹

7 0
2 years ago
What is the relationship between carbon and life on earth?
gizmo_the_mogwai [7]

Answer:

Carbon forms the key component for all known life on Earth.

Explanation:

Complex molecules are made up of carbon bonded with other elements, especially oxygen and hydrogen and frequently also with nitrogen, phosphorus and sulfur. Carbon is abundant on Earth. It is also lightweight and relatively small in size, making it easier for enzymes to manipulate carbon molecules.

8 0
3 years ago
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