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3 years ago

What is the volume of 67.1g of ethyl alcohol, which has a density of 0.79 g/mL?

Chemistry

1 answer:

Brut [27]3 years ago

8 0

Answer: 84.9 mL

Explanation:

Given the variables in the question, Volume can be derived from the formula for Density;

$Density = \frac{Mass}{Volume} \\\\Volume = \frac{Mass}{Density} \\\\Volume = \frac{67.1g}{0.79g/mL} \\\\Volume = 84.9 mL$

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Marrrta [24]

Answer: A. 1.60 liters

Explanation:

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As can be seen from the balanced chemical equation, 2 moles of $CO_2$ produce 1 mole of $O_2$ .

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Thus $2$ moles of $CO_2$ occupies $22.4\times 2=44.8L$ at STP and produce 1 mole of $O_2$ i.e. 22.4 L

44.8 L of $CO_2$ will produce 22.4 L of $O_2$

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3 years ago

Does changing the number of neutrons change the identity of the element you have built ?

worty [1.4K]

Answer:

If you change the number of neutrons somehow, nothing will happen because it carry's no charge at all.

Explanation:

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4 years ago

7.5 moles of nitrogen gas (N2) is formed in the following reaction. How many grams

AfilCa [17]

Answer:

Mass = 255 g

Explanation:

Given data:

Number of moles of nitrogen = 7.5 mol

Mass of ammonia formed = ?

Solution:

Chemical equation:

3H₂ + N₂ → 2NH₃

Now we will compare the moles of nitrogen and ammonia.

N₂ : NH₃

1 : 2

7.5 : 2/1×7.5 = 15

Mass of ammonia:

Mass = number of moles × molar mass

Mass = 15 mol × 17 g/mol

Mass = 255 g

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3 years ago

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Serjik [45]

Except B, Liberal Arts College

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3 years ago

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ale4655 [162]

Mass is measured in kilograms.

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2 years ago