How do I seperate a mixture of iron filings, salt, sand, and wood chips?

Chemistry

1 answer:

natulia [17]3 years ago

4 0

As this mixture is a heterogeneous mixture, filtration would be used to separate these. <span />

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MrMuchimi

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gulaghasi [49]

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3 years ago

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Alborosie

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4 years ago

Read 2 more answers

1. A gas having the following composition is burnt under a boiler with 50% excess air.

jeka94

The composition of the stack gas are :

$CH_4$ = 0.8713

$C_3H_8$ = 0.0202

CO = 0.107

<h3 /><h3>What is a mole fraction?</h3>

The ratio of the number of moles of one component of a solution or other mixture to the total number of moles representing all of the components.

Assuming 100 g of the stack gas. Calculate the mass of each species in this sample according to their percentages.

Mass of $CH_4$ : 70% of 100 g = 70 g

Mass of $C_3H_8$ : 15% of 100 g = 15 g

Mass of CO : 15% of 100 g = 15 g

Now calculate the number of moles of each species:

Number of moles of $CH_4$ : $\frac{70 g}{16.04 g/mol}$ = 4.3 mole