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Fantom [35]
2 years ago
5

Naturally occurring Indium has two isotopes.

Chemistry
1 answer:
trasher [3.6K]2 years ago
3 0

Answer:

Average Molar mass is 114.8u

Explanation:

» From the formula of average Relative Atomic Mass [ RAM ]

{ \rm{RAM =  \sum \frac{(isotopic \: mass \times \%abundance)}{100} }} \\

» We have two isotopes of Indium,

  • Indium-113, mass » 112.9u, % » 4.28%
  • Indium-115, mass » 114.9u, % » 95.72%

{ \tt{RAM =  \frac{ \blue{(112.9 \times 4.28)} + { \green{(114.9 \times 95.72)}}}{100} }} \\  \\ { \tt{RAM =  \frac{11481.44}{100} }} \\  \\ { \underline{ \underline{ \tt{ \: RAM = 114.8\: }}}}

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The resulting pressure of the gas after decreasing the initial volume from 2 L to 1 L is 3 atm.

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According to the Boyle's Law at constant temperature, pressure of the gas is inversely proportional to the volume of that gas.

For the given question we use the below equation is:

P₁V₁ = P₂V₂, where

P₁ = initial pressure of gas = 1.5 atm

V₁ = initial volume of gas = 2 L

P₂ = final pressure of gas = ?

V₂ = final volume of gas = 1 L

On putting all these values on the above equation, we get

P₂ = (1.5atm)(2L) / (1L) = 3 atm

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brainly.com/question/469270

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A ______ in medicine is a form of scientific argumentation in which evidence is used to rule out claims and support the best con
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