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dimaraw [331]
3 years ago
10

23. For the reaction shown, calculate how many moles of each

Chemistry
1 answer:
ZanzabumX [31]3 years ago
4 0
<h3>Further explanation </h3>

The reaction equation is the chemical formula of reagents and product substances  

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products  

Mol ratio :

Pbs : O₂ : PbO : SO₂ = 2 : 3 : 2 : 2

  • (a) 2.4 mol PbS

mol PbO

\tt \dfrac{2}{2}\times 2.4=2.4

mol SO₂

\tt \dfrac{2}{2}\times 2.4=2.4

  • (b) 2.4 mol O₂

mol PbO

\tt \dfrac{2}{3}\times 2.4=1.6

mol SO₂

\tt \dfrac{2}{3}\times 2.4=1.6

(c) 5.3 mol PbS

mol PbO

\tt \dfrac{2}{2}\times 5.3=5.3

mol SO₂

\tt \dfrac{2}{2}\times 5.3=5.3

  • d) 5.3 mol O₂

mol PbO

\tt \dfrac{2}{3}\times 5.3=3.53

mol SO₂

\tt \dfrac{2}{3}\times 5.3=3.53

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aseous methane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 5.5 g of methane is
maksim [4K]

Answer:

There is 9.6 grams of CO2 produced

Explanation:

Step 1: Data given

Mass of methane = 5.50 grams

Molar mass of methane = 16.04 g/mol

Mass of oxygen = 13.9 grams

Molar mass of oxygen = 32.0 g/mol

Step 2: The reaction

CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)

Step 3: Calculate number of moles

Moles = mass / molar mass

Moles methane = 5.50 grams / 16.04 g/mol

Moles methane = 0.343 moles

Moles oxygen = 13.9 grams / 32.0 g/mol

Moles oxygen = 0.434 moles

For 1 mol CH4 we need 2 moles O2 to produce 1 mol CO2 and 2 moles H2O

O2 is the limiting reactant. It will completely react (0.434 moles).

There will react 0.434/2 = 0.217 moles CH4

There will remain 0.343-0.217 = 0.126 moles CH4

There will be produced 0.434 moles of H2O and

0.434/2 =0.217 moles of CO2

Step 4: Calculate mass of products

Mass = moles * molar mass

Mass CO2 = 0.217 moles ¨44.01 g/mol

Mass CO2 = 9.6 grams

Mass H2O = 0.434 moles * 18.02

Mass H2O = 7.8 grams

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they both form the earth
they both made sediments have cracks

differences:
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chemical transforms rocks into sediments while physical only breaks it down

chemical uses chemical reactions


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