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3 years ago

What is the volume of 88 grams of CO2 gas at STP?

Chemistry

1 answer:

I am Lyosha [343]3 years ago

3 0

! mole of CO2 at STP has a volume of 22.4 liters
88 grams = 2 moles

so the required volume = 2*22.4 = 44.8 liters

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A 41.1 g sample of solid CO2 (dry ice) is added to a container at a temperature of 100 K with a volume of 3.4 L. If the containe

Morgarella [4.7K]

Answer:

The pressure inside the container is 6.7 atm

Explanation:

We have the ideal gas equation: P x V = n x R x T

whereas, P (pressure, atm), V (volume, L), n (mole, mol), R (ideal gas constant, 0.082), T (temperature, Kelvin)

Since the container is evacuated and then sealed, the volume of the body of gas is the volume of the container.

So we can calculate the pressure by

P = n x R x T / V

where as,

n = 41.1 g / 44 g/mol = 0.934 mol

Hence P = 0.934 x 0.082 x 298 / 3.4 L = 6.7 atm

3 0

3 years ago

What multiplicities are observed for the signals in the off-resonance decoupled 13c nmr spectrum of (2e)-3-chloro acrylaldehyde?

Flauer [41]

The multiplicities that are observed for the signals in the off-resonance decoupled 13c nmr spectrum of (2e)-3-chloro acrylaldehyde is a singlet, a triplet, and a quartet. The correct option is E.

<h3>What is off-resonance decoupling?</h3>

Off-resonance decoupling is a process of removing all hydrogen and carbon coupling from a signal except for the place which is near the nucleus or joined with the nucleus.

In NMR also, the coupling of hydrogen and carbon is removed except for the place near the nucleus.

Thus, the correct option is E) a singlet, a triplet, and a quartet.

To learn more about off-resonance, refer to the link:

brainly.com/question/28169200

#SPJ4

The question is incomplete. Your most probably complete question is given below:

A) 2 singlets and a doublet

B) a singlet and 2 doublets

C) 3 singlets

D) a singlet, a doublet, and a triplet

E) a singlet, a triplet, and a quartet

8 0

2 years ago

A galaxy type that is spherical or oval in shape

Alik [6]

We are not able to know that the galaxy have oval or sperical shape because we have not such modern technology to look over it

3 0

3 years ago

Read 2 more answers

Which atom would it be most difficult to remove an electron from

Norma-Jean [14]

I would be difficult to remove an electron from a Noble or Inert Gas (also known as the group 8 or 0 elements). This is because they all have filled outermost shells and as such the outermost shell would be held tightly to the nucleus and as such make it difficult to remove. Examples Helium, Neon, Argon, Xenon, Krypton and Radon

6 0

3 years ago

Find the number of atoms in 237g Cu (molar mass of Cu63.55g/mol)

MakcuM [25]

In order to find the amount of atoms you have to find the moles then multiply by Avogadro's Constant (L)

mol = $\frac{MASS}{Molar Mass}$

= $\frac{237 g}{63.55 g/mol} 
$

= 3.73 mol

Number of atoms of Cu = mol × L

= 3.73 mol × (6.02 × 10²³)

= 2.245 × 10²⁴ atoms of copper

5 0

3 years ago