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Maru [420]
2 years ago
7

What is Dalton's law of partial pressure

Chemistry
2 answers:
guapka [62]2 years ago
8 0

Answer:

Dalton law of partial pressure states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of partial pressures of the individual gases.

Explanation:

Pt=P1+P2

Leto [7]2 years ago
7 0
  • If 3 substances be x,y,z

\\ \tt\longmapsto P_{net}=P_x+P_y+P_z

Where

\\ \tt\longmapsto P_x=\dfrac{n_xRT}{V}

\\ \tt\longmapsto P_y=\dfrac{n_yRT}{V}

\\ \tt\longmapsto P_z=\dfrac{n_zRT}{V}

  • P is partial pressure
  • n is number of moles
  • V is volume
  • T is temperature
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B ia the correct one .

Hydrogen only uses the first energy shell, which holds 2 electrons, not 8.
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How many half-lives are required for three-fourths of the nuclei of an isotope in a sample to decay?
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2 half lives are required.
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A 2.912 g sample of a compounds containing only C, H, and O was completely oxidized in a reaction that yielded 3.123 g of water
Taya2010 [7]

Answer:

Explanation:

18 gram of water contains 2 g of hydrogen

3.123 gram of water will contain 2 x 3.123 / 18 = .347 g of hydrogen .

44 gram of carbon dioxide contains 12 g of carbon

7.691 gram of carbon dioxide will contain 12 x 7.691 / 44 = 2.1 g of carbon .

So the sample will contain 2.912 - ( .347 + 2.1 ) g of oxygen .

= .465 g of oxygen .

moles of Carbon = 2.1 / 12 = .175

moles of hydrogen = .347 / 1 = .347

moles of oxygen = .465 / 16 = .029

Ratio of moles of carbon , oxygen and hydrogen ( C,O,H )

= 0.175 : 0.029 : 0.347

= .175/ .029 : 1 : .347 / .029

= 6 : 1 : 12

So empirical formula = C₆H₁₂O

Let the molecular formula be (C_6H_{12}O)_n

molecular weight = n ( 6 x 12 + 12x 1 + 16)

= 100 n

Given 100 n = 100.1

n = 1

Molecular formula = C₆H₁₂O.

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Mount St. Helens is a volcano that erupted with great force in 1980. Which phrase best describes this eruption?
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Answer:The best phrase which supports the eruption would be high-viscosity magma lava broken into fragments.

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an element "x" has the election configuration 2,8,3 this element is found in ______group and_____period A.3,llla B.llla,3 C.vlla
iogann1982 [59]

This element is found in group 3A, period 3

<h3>Further explanation </h3>

The maximum number of electrons that can be filled in the nth electron shell is 2n²(n=shell)

  • K shell (n = 1) maximum 2 x 1² = 2 electrons
  • L shell (n = 2) maximum 2 x 2² = 8 electrons
  • M shell (n = 3) maximum 2 x 3² = 18 electrons
  • N shell (n = 4) maximum 2 x 4² = 32 electrons

Electron configuration of element X : 2.8.3 , so :

K shell = 2 ⇒1s²

L shell = 8⇒2s²2p⁶

M shell = 3⇒ 3s²3p¹

Block p: group 13-18 (has a 2p-6p configuration), also called a representative element because it includes metals, non-metals and metalloids

The outer shell 3s²3p¹ : located in group 3A and period 3

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