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3 years ago

10. Convert 4.25 x 108 km) to Liters (show you work)

Chemistry

1 answer:

expeople1 [14]3 years ago

4 0

4.25 x 10¹⁴L

Explanation:

It is impossible to convert from km to liters.

km is a unit of distance or length whereas liters a unit of volume, the amount of space a body occupies.

But let us assume you meant km³:

Converting form km³ to liters:

Given 4.25 x 10⁸km³

1000m³ = 1Liter

1000m = 1km

Now, to solve this problem, we are going to use a conversion factor of 1 to multiply our unit.

km³ = km x km x km

4.25 x 10⁸ x km x km x km x $\frac{1000m}{1km } x \frac{1000m}{1km } x \frac{1000m}{1km }$ x $\frac{1L}{1000m^{3} }$ = 4.25 x 10¹⁴L

learn more:

conversion brainly.com/question/1548911

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Answer:

102g

Explanation:

To find the mass of ethanol formed, we first need to ensure that we have a balanced chemical equation. A balanced chemical equation is where the number of atoms of each element is the same on both sides of the equation (reactants and products). This is useful as only when a chemical equation is balanced, we can understand the relationship of the amount (moles) of reactant and products, or to put it simply, their relationship with one another.

In this case, the given equation is already balanced.

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From the equation, the amount of ethanol produced is twice the amount of yeast present, or the same amount of carbon dioxide produced. Do note that amount refers to the number of moles here.

Mole= Mass ÷Mr

Mass= Mole ×Mr

Method 1: using the mass of glucose

Mr of glucose

= 6(12) +12(1) +6(16)

= 180

Moles of glucose reacted

= 200 ÷180

= $\frac{10}{9}$ mol

Amount of ethanol formed: moles of glucose reacted= 2: 1

Amount of ethanol

= $2(\frac{10}{9} )$

= $\frac{20}{9}$ mol

Mass of ethanol

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= $\frac{20}{9}(46)$

= 102 g (3 s.f.)

Method 2: using mass of carbon dioxide produced

Mole of carbon dioxide produced

= 97.7 ÷[12 +2(16)]

= 97.7 ÷44

= $\frac{977}{440}$ mol

Moles of ethanol: moles of carbon dioxide= 1: 1

Moles of ethanol formed= $\frac{977}{440}$ mol

Mass of ethanol formed

= $\frac{977}{440} \times[2(12)+6+16]$

= 102 g (3 s.f.)

Thus, 102 g of ethanol are formed.

Additional:

For a similar question on mass and mole ratio, do check out the following!

brainly.com/question/1685725

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Answer:

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Answer:

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