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Fofino [41]
3 years ago
6

The blank solution used to calibrate the spectrophotometer is 10.0 mL of 0.2 M Fe(NO3)3 diluted to 25.0 mL with 0.1 M HNO3. Why

is this solution preferred to simply using de-ionized water for the calibration?
Chemistry
1 answer:
Sliva [168]3 years ago
4 0
<span>FeNCS+ product...............thats how you do it i believe </span>
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This is a metallic bond.

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Explain what is happening to molecules in the chemical reaction shown here. Helpful vocabulary: the
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Answer:

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In ironmaking, iron metal can be separated from iron ore (Fe2O3) by heating the ore in a blast furnace in the presence of coke,
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The limiting reactant is iron ore, the theoretical yield of iron metal is 701.344 kg, and the theoretical yield of carbon dioxide is 413.292 kg.

<h3>Stoichiometric problem</h3>

From the equation of the reaction:

2 Fe_2O_3(s) + 3 C(s) --- > 4 Fe(s) + 3 CO_2(g)

The mole ratio of iron ore to carbon is 2:3.

Mole of 1000 kg of iron ore = 1000000/159.69

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Mole of 120 kg carbon = 120000/12

                                 = 10,000 moles

Thus, it appears that the carbon is in excess while the iron ore is limited in availability.

The mole ratio of the iron ore and the iron produced is 1:2. Thus, the equivalent number of moles of iron produced will be:

              6,262 x 2 = 12,524 moles

Mass of 12,524 moles of iron = 12,524 x 56

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Thus, the theoretical yield of iron is 701.344 kg.

The mole ratio of the iron ore and the carbon dioxide produced is 2:3. The equivalent mole of carbon dioxide produced will be:

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Mass of 9,393 moles carbon dioxide = 9,393 x 44

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The theoretical yield of carbon dioxide is, therefore, 413.292 kg.

More on stoichiometric problems can be found here: brainly.com/question/14465605

#SPJ1

       

3 0
1 year ago
Most atoms form compounds by forming octets in their outer shell. what does octet really mean?
Aleksandr [31]
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As the amount of charge on two objects increases, the strength of the electrical force between the objects
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Answer:

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6 0
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