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MakcuM [25]
3 years ago
5

In a first-order reaction, what is the rate constant if the rate is 0.050 moles/l-sec and the reactant concentration is 0.030 mo

les/l
Chemistry
1 answer:
ra1l [238]3 years ago
8 0

Answer:

The half-life () is a timescale on which the initial population is decreased by half of its original value, represented by the following equation. This indicates that the half-life of a first-order reaction is a constant. Figure 2: Half lives graphically demonstrated for first-order reaction.

Explanation:

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olchik [2.2K]

Answer:

0.733 mol.

Explanation:

  • From the balanced equation:

<em>2Fe₂O₃ + C → Fe + 3CO₂,</em>

It is clear that 1.0 moles of Fe₂O₃  react with 1.0 mole of C to produce 1.0 mole of Fe and 3.0 moles of CO₂.

  • Since Fe₂O₃ is in excess, C will be the limiting reactant.

<u><em>Using cross multiplication:</em></u>

1.0 mole of C produces → 3.0 moles of CO₂, from the stichiometry.

??? mole of C produces → 2.2 moles of CO₂.

∴ The no. of moles of C needed to produce 2.2 moles of CO₂ = (1.0 mole of C) (2.2 mole of CO₂) / (3.0 mole of CO₂) = 0.733 mol.

6 0
3 years ago
What is the amount in grams of EDTA needed to make 315.1 mL of a 0.05 M EDTA solution. The molar mass of EDTA is 374 g/mol
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How is a lithium atom (Li) different from a lithium ion (Li+)
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Answer:

(Li) has fewer electrons than (Li+)

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A;4, b;6, c;7, d;5, e;8, f;3
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Explanation:

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