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1 year ago

What volume of gas will the balloon contain at 1026 mmHg and 253 K?

Chemistry

1 answer:

LiRa [457]1 year ago

6 0

Explanation:

To solve this question, we need to use the following equation:

P1*V1/T1 = P2*V2/T2

Here we have:

P1 = 1560 mmHg

V1 = 45.0

T1 = 153 K

P2 = 1026 mmHg

V2 = ??

T2 = 253 K

So:

1560*45/153 = 1026*V2/253

458.8 = 4.055*V2

V2 = 113 L

Answer: Alternative "A" 113 L

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A 44.0mg sample of carbon reacts with sulfur to form 122 mg of the compound.

anygoal [31]

Answer:

Empirical formula = C₃S₂

Explanation:

Given data:

Mass of carbon = 44.0 mg (44/1000 = 0.044 g)

Mass of sulfur = 122 mg - 44.0 mg = 78 mg = 78/1000 = 0.078 g)

Empirical formula = ?

Solution:

First of all we will calculate the number of moles.

Number of moles of carbon = mass / molar mass

Number of moles of carbon = 0.044 g/ 12.01 g/mol

Number of moles of carbon = 0.0037 mol

Number of moles of sulfur:

Number of moles = mass / molar mass

Number of moles = 0.078 g/ 32,066 g/mol

Number of moles = 0.0024 mol

Now we will compare the moles:

C : S

0.0037/0.0024 : 0.0024/0.0024

1.5 : 1

C : S = 2(1.5 : 1)

C : S = 3 : 2

Empirical formula = C₃S₂

4 0

3 years ago

Rank the following compounds from least acidic(rank 1) to most.A. AcetaldehydeB. Methyl acetate.C. N,N-dimethylacetamide1. least

Phoenix [80]

Answer:

N,N-dimethylacetamide < Methyl acetate < Acetaldehyde

Acetaldehyde - least acidic

Methyl acetate - acidic

N,N-dimethylacetamide - most acidic

Explanation:

The order of acidity of the organic compound under study is primarily influenced by their resonance effect. The resonance effect explains how polar a particular molecule is from the interaction between pi -bonds or a lone electron pair and a pi-bond in a molecule.

In acetaldehyde popularly known as ethanal, the CH₃CHO functional group -CHO is attached to an adjacent end of the compound, which has a lesser resonance effect than methyl acetate.

Methyl acetate, also known as methyl ethanoate, is an ester family with the formula CH₃COOCH₃ is also lesser in its acidity compared to N,N-dimethylacetamide.

Therefore, the order of acidity from the least acidic to the most is:

N,N-dimethylacetamide < Methyl acetate < Acetaldehyde

Acetaldehyde - least acidic

Methyl acetate - acidic

N,N-dimethylacetamide - most acidic

5 0

3 years ago

Burning a candle is a combustion reaction that uses wax and oxygen to produce carbon dioxide, water, and energy. When you burn a

ss7ja [257]

Answer:

The wax

Explanation:

The limiting reactant is the reactant in short supply in a particular reaction. This reactant determines the extent of the reaction. Oxygen in the reaction is the one in excess. As we know that oxygen is free in the atmosphere and it is in excess supply.

After the wax finishes burning the reaction stops and no more production of carbon dioxide, water and energy but oxygen still continues to abound all around.

In order to determine the amount of carbon dioxide and water that would be produce, we simply use the amount of wax to relate with them.

4 0

3 years ago

Cual es el carbono de valencia libre

Ilia_Sergeevich [38]

Answer:

Explanation:

1) Se escoge la cadena con el mayor número de átomos de carbono. 2) Cuando hay dos cadenas posibles con el mismo número de átomos de carbono, se elige la que contenga el mayor número de triples ligaduras posibles. ... El átomo de carbono con la triple valencia libre se numera como 1.

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3 years ago

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How can high-altitude training help athletes get more oxygen to their cells

mixas84 [53]

Answer:

the altitude in witch the athlete is running candy help them run faster useing less energy

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3 years ago