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Morgarella [4.7K]
3 years ago
9

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are fo

rmed when a mixture of 0.36 moles Al is ignited?
a. 0.12
b. 0.18
c. 0.28
d. 0.46
Chemistry
1 answer:
Olin [163]3 years ago
5 0
The correct answer is B.) 0.18
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artcher [175]

Answer:

1. V₁ = 2.0 mL

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Explanation:

<em>You are provided with a stock solution with a concentration of 1.0 × 10⁻⁵ M. You will be using this to make two standard solutions via serial dilution.</em>

To calculate the volume required (V₁) in each dilution we will use the dilution rule.

C₁ . V₁ = C₂ . V₂

where,

C are the concentrations

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1 refers to the initial state

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<em>1. Perform calculations to determine the volume of the 1.0 × 10⁻⁵ M stock solution needed to prepare 10.0 mL of a 2.0 × 10⁻⁶ M solution.</em>

C₁ . V₁ = C₂ . V₂

(1.0 × 10⁻⁵ M) . V₁ = (2.0 × 10⁻⁶ M) . 10.0 mL

V₁ = 2.0 mL

<em>2. Perform calculations to determine the volume of the 2.0 × 10⁻⁶ M solution needed to prepare 10.0 mL of a 5.0 × 10⁻⁷ M solution.</em>

C₁ . V₁ = C₂ . V₂

(2.0 × 10⁻⁶ M) . V₁ = (5.0 × 10⁻⁷ M) . 10.0 mL

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